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Alerts Issued in June 2013


Space Weather Message Code: WATA20
Serial Number: 535
Issue Time: 2013 Jun 30 1610 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 534
Original Issue Time: 2013 Jun 29 1608 UTC

Comment: G1 (Minor) storming conditions are no longer expected.
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: SUMSUD
Serial Number: 176
Issue Time: 2013 Jun 30 1139 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Jun 30 1125 UTC
Deviation: 24 nT
Station: Hartland


Space Weather Message Code: WARSUD
Serial Number: 134
Issue Time: 2013 Jun 30 1053 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Jun 30 1100 UTC
Valid To: 2013 Jun 30 1200 UTC
IP Shock Passage Observed: 2013 Jun 30 1040 UTC


Space Weather Message Code: WARK04
Serial Number: 2121
Issue Time: 2013 Jun 30 0049 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2120
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jul 01 0700 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2120
Issue Time: 2013 Jun 29 1855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2119
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jun 30 0300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WATA20
Serial Number: 534
Issue Time: 2013 Jun 29 1608 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 30: G1 (Minor) Jul 01: None (Below G1) Jul 02: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK06
Serial Number: 312
Issue Time: 2013 Jun 29 1123 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 29 1123 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 231
Issue Time: 2013 Jun 29 1109 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2013 Jun 29 1110 UTC
Valid To: 2013 Jun 29 1600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 857
Issue Time: 2013 Jun 29 1109 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 856
Valid From: 2013 Jun 28 2306 UTC
Now Valid Until: 2013 Jun 29 1600 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2119
Issue Time: 2013 Jun 29 1109 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2118
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jun 29 1900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK06
Serial Number: 230
Issue Time: 2013 Jun 29 0656 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 228
Valid From: 2013 Jun 29 0233 UTC
Now Valid Until: 2013 Jun 29 1000 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 856
Issue Time: 2013 Jun 29 0656 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 855
Valid From: 2013 Jun 28 2306 UTC
Now Valid Until: 2013 Jun 29 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK07
Serial Number: 87
Issue Time: 2013 Jun 29 0602 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2013 Jun 29 0559 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.


Space Weather Message Code: WARK07
Serial Number: 41
Issue Time: 2013 Jun 29 0515 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2013 Jun 29 0515 UTC
Valid To: 2013 Jun 29 1000 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.


Space Weather Message Code: ALTK06
Serial Number: 311
Issue Time: 2013 Jun 29 0353 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 29 0351 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: ALTK06
Serial Number: 310
Issue Time: 2013 Jun 29 0237 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 29 0235 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 228
Issue Time: 2013 Jun 29 0233 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2013 Jun 29 0233 UTC
Valid To: 2013 Jun 29 0700 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK04
Serial Number: 2118
Issue Time: 2013 Jun 29 0223 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2117
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jun 29 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK05
Serial Number: 721
Issue Time: 2013 Jun 29 0005 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jun 28 2359 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WATA20
Serial Number: 533
Issue Time: 2013 Jun 28 2307 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 29: G1 (Minor) Jun 30: None (Below G1) Jul 01: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 855
Issue Time: 2013 Jun 28 2307 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jun 28 2306 UTC
Valid To: 2013 Jun 29 0700 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2117
Issue Time: 2013 Jun 28 1754 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2116
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jun 29 0300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 854
Issue Time: 2013 Jun 28 1628 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jun 28 1630 UTC
Valid To: 2013 Jun 28 2200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTEF3
Serial Number: 2037
Issue Time: 2013 Jun 28 1332 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2036
Begin Time: 2013 Jun 23 0230 UTC
Yesterday Maximum 2MeV Flux: 17632 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2116
Issue Time: 2013 Jun 28 1151 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2115
Valid From: 2013 Jun 28 0015 UTC
Now Valid Until: 2013 Jun 28 1800 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1650
Issue Time: 2013 Jun 28 0056 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 28 0054 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2115
Issue Time: 2013 Jun 28 0010 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 28 0015 UTC
Valid To: 2013 Jun 28 1300 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUMSUD
Serial Number: 175
Issue Time: 2013 Jun 27 1459 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Jun 27 1440 UTC
Deviation: 44 nT
Station: HAD


Space Weather Message Code: WARSUD
Serial Number: 133
Issue Time: 2013 Jun 27 1412 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Jun 27 1425 UTC
Valid To: 2013 Jun 27 1455 UTC
IP Shock Passage Observed: 2013 Jun 27 1350 UTC


Space Weather Message Code: ALTEF3
Serial Number: 2036
Issue Time: 2013 Jun 27 0506 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2035
Begin Time: 2013 Jun 23 0230 UTC
Yesterday Maximum 2MeV Flux: 17678 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2035
Issue Time: 2013 Jun 26 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2034
Begin Time: 2013 Jun 23 0230 UTC
Yesterday Maximum 2MeV Flux: 17150 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 532
Issue Time: 2013 Jun 25 2202 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 26: None (Below G1) Jun 27: G1 (Minor) Jun 28: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WATA20
Serial Number: 531
Issue Time: 2013 Jun 25 1248 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 26: None (Below G1) Jun 27: G1 (Minor) Jun 28: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2114
Issue Time: 2013 Jun 25 0655 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2113
Valid From: 2013 Jun 24 2043 UTC
Now Valid Until: 2013 Jun 25 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 2034
Issue Time: 2013 Jun 25 0509 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2033
Begin Time: 2013 Jun 23 0230 UTC
Yesterday Maximum 2MeV Flux: 10653 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1649
Issue Time: 2013 Jun 24 2047 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 24 2047 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2113
Issue Time: 2013 Jun 24 2042 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 24 2043 UTC
Valid To: 2013 Jun 25 0700 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUMPX1
Serial Number: 69
Issue Time: 2013 Jun 24 1855 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2013 Jun 23 2014 UTC
Maximum Time: 2013 Jun 24 0800 UTC
End Time: 2013 Jun 26 0850 UTC
Maximum 10MeV Flux: 12 pfu
NOAA Scale: S1 - Minor

Comment: This summary marks the end of the S1 level proton event.


Space Weather Message Code: ALTEF3
Serial Number: 2033
Issue Time: 2013 Jun 24 1316 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2032
Begin Time: 2013 Jun 23 0230 UTC
Yesterday Maximum 2MeV Flux: 1607 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2112
Issue Time: 2013 Jun 23 2248 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 23 2250 UTC
Valid To: 2013 Jun 24 0700 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTPX1
Serial Number: 302
Issue Time: 2013 Jun 23 2026 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2013 Jun 23 2010 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARPX1
Serial Number: 400
Issue Time: 2013 Jun 23 1929 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2013 Jun 23 1930 UTC
Valid To: 2013 Jun 24 2100 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.


Space Weather Message Code: WARK04
Serial Number: 2111
Issue Time: 2013 Jun 23 0534 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2110
Valid From: 2013 Jun 23 0214 UTC
Now Valid Until: 2013 Jun 23 1900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1648
Issue Time: 2013 Jun 23 0305 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 23 0259 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 2032
Issue Time: 2013 Jun 23 0247 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jun 23 0230 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2110
Issue Time: 2013 Jun 23 0214 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 23 0214 UTC
Valid To: 2013 Jun 23 0700 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2109
Issue Time: 2013 Jun 22 0658 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2108
Valid From: 2013 Jun 22 0143 UTC
Now Valid Until: 2013 Jun 22 1300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1647
Issue Time: 2013 Jun 22 0149 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 22 0150 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2108
Issue Time: 2013 Jun 22 0142 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 22 0143 UTC
Valid To: 2013 Jun 22 0700 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: SUM10R
Serial Number: 587
Issue Time: 2013 Jun 21 0349 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jun 21 0308 UTC
Maximum Time: 2013 Jun 21 0322 UTC
End Time: 2013 Jun 21 0330 UTC
Duration: 22 minutes
Peak Flux: 6000 sfu
Latest Penticton Noon Flux: 126 sfu

Comment: Re-issue from previous Summary due to updated peak flux reported by observatories.
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: SUM10R
Serial Number: 586
Issue Time: 2013 Jun 21 0347 UTC

CANCEL SUMMARY: 10cm Radio Burst
Cancel Serial Number: 585
Original Issue Time: 2013 Jun 21 0324 UTC

Comment: Cancel current Summary and re-issuing based on revised peak sfu reported by observatories.
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: SUM10R
Serial Number: 585
Issue Time: 2013 Jun 21 0324 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jun 21 0308 UTC
Maximum Time: 2013 Jun 21 0311 UTC
End Time: 2013 Jun 21 0315 UTC
Duration: 7 minutes
Peak Flux: 1300 sfu
Latest Penticton Noon Flux: 126 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTTP4
Serial Number: 421
Issue Time: 2013 Jun 21 0320 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jun 21 0256 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTK04
Serial Number: 1646
Issue Time: 2013 Jun 20 2104 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 20 2059 UTC
Synoptic Period: 1900-2100 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2107
Issue Time: 2013 Jun 20 2057 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 20 2055 UTC
Valid To: 2013 Jun 21 2100 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WATA20
Serial Number: 530
Issue Time: 2013 Jun 20 1554 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 21: G1 (Minor) Jun 22: None (Below G1) Jun 23: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTTP2
Serial Number: 861
Issue Time: 2013 Jun 14 0109 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jun 14 0012 UTC
Estimated Velocity: 431 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: WARK04
Serial Number: 2106
Issue Time: 2013 Jun 10 0834 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2105
Valid From: 2013 Jun 10 0515 UTC
Now Valid Until: 2013 Jun 10 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK04
Serial Number: 1645
Issue Time: 2013 Jun 10 0520 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 10 0520 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2105
Issue Time: 2013 Jun 10 0515 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 10 0515 UTC
Valid To: 2013 Jun 10 0900 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WATA20
Serial Number: 529
Issue Time: 2013 Jun 09 1510 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 528
Original Issue Time: 2013 Jun 07 2004 UTC

Comment: The G1 Watch is cancelled as current space weather conditions are nominal and expected to remain so.
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTEF3
Serial Number: 2031
Issue Time: 2013 Jun 09 0806 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2030
Begin Time: 2013 Jun 07 1115 UTC
Yesterday Maximum 2MeV Flux: 2820 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2030
Issue Time: 2013 Jun 08 1140 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2029
Begin Time: 2013 Jun 07 1115 UTC
Yesterday Maximum 2MeV Flux: 4100 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUMXM5
Serial Number: 104
Issue Time: 2013 Jun 07 2326 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2013 Jun 07 2211 UTC
Maximum Time: 2013 Jun 07 2249 UTC
End Time: 2013 Jun 07 2304 UTC
X-ray Class: M5.9
Location: S28W73
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.


Space Weather Message Code: SUM10R
Serial Number: 584
Issue Time: 2013 Jun 07 2302 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jun 07 2242 UTC
Maximum Time: 2013 Jun 07 2243 UTC
End Time: 2013 Jun 07 2246 UTC
Duration: 4 minutes
Peak Flux: 160 sfu
Latest Penticton Noon Flux: 110 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.


Space Weather Message Code: ALTXMF
Serial Number: 192
Issue Time: 2013 Jun 07 2251 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2013 Jun 07 2248 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/drap/index.html.


Space Weather Message Code: WATA20
Serial Number: 528
Issue Time: 2013 Jun 07 2004 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 08: None (Below G1) Jun 09: G1 (Minor) Jun 10: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WATA20
Serial Number: 527
Issue Time: 2013 Jun 07 1937 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 526
Original Issue Time: 2013 Jun 06 1951 UTC

Comment: Conditions no longer warrant continued watch for 08 June. An additional watch will be issued for 09 June.
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTEF3
Serial Number: 2029
Issue Time: 2013 Jun 07 1133 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jun 07 1115 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2104
Issue Time: 2013 Jun 07 1129 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2103
Valid From: 2013 Jun 06 1530 UTC
Now Valid Until: 2013 Jun 07 1800 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 853
Issue Time: 2013 Jun 07 0543 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 851
Valid From: 2013 Jun 07 0150 UTC
Now Valid Until: 2013 Jun 07 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK06
Serial Number: 227
Issue Time: 2013 Jun 07 0543 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 225
Valid From: 2013 Jun 07 0350 UTC
Now Valid Until: 2013 Jun 07 0900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK04
Serial Number: 2103
Issue Time: 2013 Jun 07 0543 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2101
Valid From: 2013 Jun 06 1530 UTC
Now Valid Until: 2013 Jun 07 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK06
Serial Number: 309
Issue Time: 2013 Jun 07 0519 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 07 0518 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 225
Issue Time: 2013 Jun 07 0349 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2013 Jun 07 0350 UTC
Valid To: 2013 Jun 07 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: ALTK05
Serial Number: 720
Issue Time: 2013 Jun 07 0223 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jun 07 0221 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 851
Issue Time: 2013 Jun 07 0147 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jun 07 0150 UTC
Valid To: 2013 Jun 07 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2101
Issue Time: 2013 Jun 06 2034 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2100
Valid From: 2013 Jun 06 1530 UTC
Now Valid Until: 2013 Jun 07 0600 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WATA20
Serial Number: 526
Issue Time: 2013 Jun 06 1951 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 07: G1 (Minor) Jun 08: G1 (Minor) Jun 09: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK04
Serial Number: 1644
Issue Time: 2013 Jun 06 1545 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jun 06 1539 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK04
Serial Number: 2100
Issue Time: 2013 Jun 06 1528 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jun 06 1530 UTC
Valid To: 2013 Jun 06 2100 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTEF3
Serial Number: 2028
Issue Time: 2013 Jun 06 0507 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2027
Begin Time: 2013 Jun 02 1445 UTC
Yesterday Maximum 2MeV Flux: 24427 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP4
Serial Number: 420
Issue Time: 2013 Jun 05 0939 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jun 05 0844 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTEF3
Serial Number: 2027
Issue Time: 2013 Jun 05 0507 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2026
Begin Time: 2013 Jun 02 1445 UTC
Yesterday Maximum 2MeV Flux: 31836 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2026
Issue Time: 2013 Jun 04 0537 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2025
Begin Time: 2013 Jun 02 1445 UTC
Yesterday Maximum 2MeV Flux: 12700 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2025
Issue Time: 2013 Jun 03 0527 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2024
Begin Time: 2013 Jun 02 1445 UTC
Yesterday Maximum 2MeV Flux: 4709 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 860
Issue Time: 2013 Jun 03 0012 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jun 02 2350 UTC
Estimated Velocity: 534 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTTP4
Serial Number: 419
Issue Time: 2013 Jun 02 1631 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jun 02 1603 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.


Space Weather Message Code: ALTTP2
Serial Number: 859
Issue Time: 2013 Jun 02 1521 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jun 02 1452 UTC
Estimated Velocity: 892 km/s

Comment: This Type II was associated with a B3/Sf flare from Region 1760 (N12E20)
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.


Space Weather Message Code: ALTEF3
Serial Number: 2024
Issue Time: 2013 Jun 02 1504 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jun 02 1445 UTC
Station: GOES15
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 525
Issue Time: 2013 Jun 02 1503 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 524
Original Issue Time: 2013 Jun 01 2002 UTC

Comment: Conditions conducive for G1 (Minor) geomagnetic storm conditions no longer exist.
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2099
Issue Time: 2013 Jun 02 0655 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2098
Valid From: 2013 May 31 2319 UTC
Now Valid Until: 2013 Jun 02 1500 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: ALTK05
Serial Number: 719
Issue Time: 2013 Jun 02 0148 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jun 02 0146 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK05
Serial Number: 850
Issue Time: 2013 Jun 02 0138 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jun 02 0137 UTC
Valid To: 2013 Jun 02 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WATA20
Serial Number: 524
Issue Time: 2013 Jun 01 2002 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jun 02: G1 (Minor) Jun 03: None (Below G1) Jun 04: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK06
Serial Number: 308
Issue Time: 2013 Jun 01 1502 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 01 1500 UTC
Synoptic Period: 1500-1800 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 849
Issue Time: 2013 Jun 01 1430 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 848
Valid From: 2013 Jun 01 0040 UTC
Now Valid Until: 2013 Jun 01 2300 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2098
Issue Time: 2013 Jun 01 1430 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2097
Valid From: 2013 May 31 2319 UTC
Now Valid Until: 2013 Jun 02 0700 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK06
Serial Number: 224
Issue Time: 2013 Jun 01 1422 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2013 Jun 01 1421 UTC
Valid To: 2013 Jun 01 1900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: ALTK06
Serial Number: 307
Issue Time: 2013 Jun 01 0904 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 01 0900 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK05
Serial Number: 848
Issue Time: 2013 Jun 01 0904 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 847
Valid From: 2013 Jun 01 0040 UTC
Now Valid Until: 2013 Jun 01 1600 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK06
Serial Number: 306
Issue Time: 2013 Jun 01 0506 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 01 0502 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 223
Issue Time: 2013 Jun 01 0506 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 222
Valid From: 2013 Jun 01 0055 UTC
Now Valid Until: 2013 Jun 01 0900 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK04
Serial Number: 2097
Issue Time: 2013 Jun 01 0506 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2096
Valid From: 2013 May 31 2319 UTC
Now Valid Until: 2013 Jun 01 1800 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 847
Issue Time: 2013 Jun 01 0506 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 846
Valid From: 2013 Jun 01 0040 UTC
Now Valid Until: 2013 Jun 01 1200 UTC
Warning Condition: Persistence
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: ALTK06
Serial Number: 305
Issue Time: 2013 Jun 01 0259 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2013 Jun 01 0258 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: WARK06
Serial Number: 222
Issue Time: 2013 Jun 01 0053 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2013 Jun 01 0055 UTC
Valid To: 2013 Jun 01 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.


Space Weather Message Code: ALTK05
Serial Number: 718
Issue Time: 2013 Jun 01 0052 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jun 01 0051 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Space Weather Message Code: WARK04
Serial Number: 2096
Issue Time: 2013 Jun 01 0041 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2095
Valid From: 2013 May 31 2319 UTC
Now Valid Until: 2013 Jun 01 0900 UTC
Warning Condition: Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.


Space Weather Message Code: WARK05
Serial Number: 846
Issue Time: 2013 Jun 01 0040 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jun 01 0040 UTC
Valid To: 2013 Jun 01 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.