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Space Weather Alerts

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Alerts Issued in July 2013


Space Weather Message Code: ALTEF3
Serial Number: 2060
Issue Time: 2013 Jul 29 1705 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jul 29 1650 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2059
Issue Time: 2013 Jul 27 1600 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jul 27 1545 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: 2144
Issue Time: 2013 Jul 26 0925 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2143
Valid From: 2013 Jul 25 1710 UTC
Now Valid Until: 2013 Jul 26 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: WARK05
Serial Number: 865
Issue Time: 2013 Jul 26 0925 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 864
Valid From: 2013 Jul 26 0320 UTC
Now Valid Until: 2013 Jul 26 1300 UTC
Warning Condition: Onset
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: 864
Issue Time: 2013 Jul 26 0317 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jul 26 0320 UTC
Valid To: 2013 Jul 26 1000 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: ALTK04
Serial Number: 1658
Issue Time: 2013 Jul 25 2026 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 25 2023 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: WATA20
Serial Number: 543
Issue Time: 2013 Jul 25 1723 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jul 26: G1 (Minor) Jul 27: None (Below G1) Jul 28: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: G1 (Minor) geomagnetic storm expected due to coronal hole high-speed stream effects.
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: 542
Issue Time: 2013 Jul 25 1721 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 541
Original Issue Time: 2013 Jul 24 1606 UTC

Comment: G1 (Minor) geomagnetic storm no longer expected on Jul 27 due to earlier-than-expected onset of coronal hole high-speed stream.
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: 2143
Issue Time: 2013 Jul 25 1707 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 25 1710 UTC
Valid To: 2013 Jul 26 1200 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: 2058
Issue Time: 2013 Jul 25 1217 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2057
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 1910 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 541
Issue Time: 2013 Jul 24 1606 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jul 25: None (Below G1) Jul 26: None (Below G1) Jul 27: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: G1 (Minor) geomagnetic storm due to recurrent coronal hole high-speed stream.
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: 2057
Issue Time: 2013 Jul 24 1046 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2056
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 1556 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2056
Issue Time: 2013 Jul 23 1226 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2055
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 4017 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2055
Issue Time: 2013 Jul 22 0534 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2054
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 3740 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2054
Issue Time: 2013 Jul 21 0505 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2053
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 4163 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 540
Issue Time: 2013 Jul 20 0540 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 539
Original Issue Time: 2013 Jul 17 1450 UTC

Comment: G1 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: ALTEF3
Serial Number: 2053
Issue Time: 2013 Jul 20 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2052
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 2710 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2052
Issue Time: 2013 Jul 19 1301 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2051
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 2286 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2142
Issue Time: 2013 Jul 19 1256 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2141
Valid From: 2013 Jul 18 1451 UTC
Now Valid Until: 2013 Jul 20 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: WARK04
Serial Number: 2141
Issue Time: 2013 Jul 18 2044 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2140
Valid From: 2013 Jul 18 1451 UTC
Now Valid Until: 2013 Jul 19 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: ALTK04
Serial Number: 1657
Issue Time: 2013 Jul 18 1453 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 18 1454 UTC
Synoptic Period: 1200-1500 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: 2140
Issue Time: 2013 Jul 18 1451 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 18 1451 UTC
Valid To: 2013 Jul 18 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: 2051
Issue Time: 2013 Jul 18 0524 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2050
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 4333 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 539
Issue Time: 2013 Jul 17 1450 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jul 18: None (Below G1) Jul 19: G1 (Minor) Jul 20: 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: ALTEF3
Serial Number: 2050
Issue Time: 2013 Jul 17 0631 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2049
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 1690 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2049
Issue Time: 2013 Jul 16 1321 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2048
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 1067 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2048
Issue Time: 2013 Jul 15 1455 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2047
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 4433 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK05
Serial Number: 863
Issue Time: 2013 Jul 15 0708 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 862
Valid From: 2013 Jul 15 0030 UTC
Now Valid Until: 2013 Jul 15 1300 UTC
Warning Condition: Onset
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: 2139
Issue Time: 2013 Jul 15 0708 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2138
Valid From: 2013 Jul 14 0215 UTC
Now Valid Until: 2013 Jul 15 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: ALTK05
Serial Number: 724
Issue Time: 2013 Jul 15 0110 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jul 15 0108 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: 2138
Issue Time: 2013 Jul 15 0047 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2137
Valid From: 2013 Jul 14 0215 UTC
Now Valid Until: 2013 Jul 15 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: WARK05
Serial Number: 862
Issue Time: 2013 Jul 15 0029 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jul 15 0030 UTC
Valid To: 2013 Jul 15 0800 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: 2137
Issue Time: 2013 Jul 14 1806 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2136
Valid From: 2013 Jul 14 0215 UTC
Now Valid Until: 2013 Jul 15 0400 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: 1656
Issue Time: 2013 Jul 14 1321 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 14 1320 UTC
Synoptic Period: 1200-1500 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: 2047
Issue Time: 2013 Jul 14 1221 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2046
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 6393 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK04
Serial Number: 2136
Issue Time: 2013 Jul 14 0930 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2135
Valid From: 2013 Jul 14 0215 UTC
Now Valid Until: 2013 Jul 14 1900 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: 2135
Issue Time: 2013 Jul 14 0211 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 14 0215 UTC
Valid To: 2013 Jul 14 1000 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: 2046
Issue Time: 2013 Jul 13 0906 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2045
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 22470 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1655
Issue Time: 2013 Jul 13 0215 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 13 0215 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: 2134
Issue Time: 2013 Jul 13 0207 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 13 0208 UTC
Valid To: 2013 Jul 13 0800 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: 2045
Issue Time: 2013 Jul 12 0513 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2044
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 3654 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1654
Issue Time: 2013 Jul 11 2014 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 11 2012 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: No
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: 2133
Issue Time: 2013 Jul 11 2013 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 11 2012 UTC
Valid To: 2013 Jul 12 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: WATA20
Serial Number: 538
Issue Time: 2013 Jul 11 1634 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jul 12: None (Below G1) Jul 13: G1 (Minor) Jul 14: 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: ALTEF3
Serial Number: 2044
Issue Time: 2013 Jul 11 0937 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2043
Begin Time: 2013 Jul 10 1655 UTC
Yesterday Maximum 2MeV Flux: 1958 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK05
Serial Number: 723
Issue Time: 2013 Jul 11 0856 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jul 11 0853 UTC
Synoptic Period: 0600-0900 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: 861
Issue Time: 2013 Jul 11 0839 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jul 11 0840 UTC
Valid To: 2013 Jul 11 1100 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: 2132
Issue Time: 2013 Jul 11 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2131
Valid From: 2013 Jul 10 1840 UTC
Now Valid Until: 2013 Jul 11 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: WARK04
Serial Number: 2131
Issue Time: 2013 Jul 10 2336 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2130
Valid From: 2013 Jul 10 1840 UTC
Now Valid Until: 2013 Jul 11 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: ALTK04
Serial Number: 1653
Issue Time: 2013 Jul 10 2033 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 10 2029 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: 2130
Issue Time: 2013 Jul 10 1835 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 10 1840 UTC
Valid To: 2013 Jul 11 0000 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: 2043
Issue Time: 2013 Jul 10 1720 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jul 10 1655 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WARK05
Serial Number: 860
Issue Time: 2013 Jul 10 1153 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jul 10 1154 UTC
Valid To: 2013 Jul 10 1800 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: 2129
Issue Time: 2013 Jul 10 1116 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2128
Valid From: 2013 Jul 09 2211 UTC
Now Valid Until: 2013 Jul 10 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: 859
Issue Time: 2013 Jul 10 0512 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 858
Valid From: 2013 Jul 10 0250 UTC
Now Valid Until: 2013 Jul 10 0900 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: 2128
Issue Time: 2013 Jul 10 0511 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2127
Valid From: 2013 Jul 09 2211 UTC
Now Valid Until: 2013 Jul 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: WARK04
Serial Number: 2127
Issue Time: 2013 Jul 10 0509 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2126
Valid From: 2013 Jul 09 2211 UTC
Now Valid Until: 2013 Jul 09 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: WARK04
Serial Number: 2126
Issue Time: 2013 Jul 10 0335 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2125
Valid From: 2013 Jul 09 2211 UTC
Now Valid Until: 2013 Jul 10 0900 UTC
Warning Condition: persistrence
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: 722
Issue Time: 2013 Jul 10 0301 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Jul 10 0257 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: 858
Issue Time: 2013 Jul 10 0257 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jul 10 0250 UTC
Valid To: 2013 Jul 10 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: ALTK04
Serial Number: 1652
Issue Time: 2013 Jul 09 2358 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 09 2359 UTC
Synoptic Period: 2100-2400 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: 2125
Issue Time: 2013 Jul 09 2211 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 09 2211 UTC
Valid To: 2013 Jul 10 0400 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: 177
Issue Time: 2013 Jul 09 2120 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Jul 09 2049 UTC
Deviation: 25 nT
Station: Fredricksburgh


Space Weather Message Code: WARSUD
Serial Number: 135
Issue Time: 2013 Jul 09 2008 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Jul 09 2045 UTC
Valid To: 2013 Jul 09 2115 UTC
IP Shock Passage Observed: 2013 Jul 09 1958 UTC


Space Weather Message Code: WARK04
Serial Number: 2124
Issue Time: 2013 Jul 06 1855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2123
Valid From: 2013 Jul 06 0100 UTC
Now Valid Until: 2013 Jul 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: WARK04
Serial Number: 2123
Issue Time: 2013 Jul 06 1217 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2122
Valid From: 2013 Jul 06 0100 UTC
Now Valid Until: 2013 Jul 06 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: 1651
Issue Time: 2013 Jul 06 0501 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jul 06 0458 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: 2122
Issue Time: 2013 Jul 06 0053 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jul 06 0100 UTC
Valid To: 2013 Jul 06 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: WATA20
Serial Number: 537
Issue Time: 2013 Jul 05 2103 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 536
Original Issue Time: 2013 Jul 03 1632 UTC

Comment: These conditons are no longer epected.
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: ALTTP4
Serial Number: 423
Issue Time: 2013 Jul 05 1711 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jul 05 1627 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: 2042
Issue Time: 2013 Jul 05 1612 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2041
Begin Time: 2013 Jul 01 0840 UTC
Yesterday Maximum 2MeV Flux: 6620 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP4
Serial Number: 422
Issue Time: 2013 Jul 05 0328 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jul 05 0253 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: 2041
Issue Time: 2013 Jul 04 0503 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2040
Begin Time: 2013 Jul 01 0840 UTC
Yesterday Maximum 2MeV Flux: 4867 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 536
Issue Time: 2013 Jul 03 1632 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jul 04: None (Below G1) Jul 05: G1 (Minor) Jul 06: 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: 862
Issue Time: 2013 Jul 03 0954 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jul 03 0709 UTC
Estimated Velocity: 1033 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: ALTEF3
Serial Number: 2040
Issue Time: 2013 Jul 03 0513 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2039
Begin Time: 2013 Jul 01 0840 UTC
Yesterday Maximum 2MeV Flux: 4061 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2039
Issue Time: 2013 Jul 02 0506 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2038
Begin Time: 2013 Jul 01 0840 UTC
Yesterday Maximum 2MeV Flux: 5847 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2038
Issue Time: 2013 Jul 01 0858 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jul 01 0840 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.