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Alerts Issued in August 2013


Space Weather Message Code: WARK04
Serial Number: 2167
Issue Time: 2013 Aug 31 0615 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2166
Valid From: 2013 Aug 30 2326 UTC
Now Valid Until: 2013 Aug 31 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: 1671
Issue Time: 2013 Aug 30 2341 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 30 2337 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: 2166
Issue Time: 2013 Aug 30 2326 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 30 2326 UTC
Valid To: 2013 Aug 31 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: 550
Issue Time: 2013 Aug 30 1616 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 30: G1 (Minor) Aug 31: G1 (Minor) Sep 01: 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: ALTTP4
Serial Number: 425
Issue Time: 2013 Aug 30 0249 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Aug 30 0224 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: 866
Issue Time: 2013 Aug 30 0248 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Aug 30 0212 UTC
Estimated Velocity: 1318 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: WATA20
Serial Number: 549
Issue Time: 2013 Aug 28 1529 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 29: None (Below G1) Aug 30: G1 (Minor) Aug 31: 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: WARK05
Serial Number: 870
Issue Time: 2013 Aug 27 2341 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Aug 27 2345 UTC
Valid To: 2013 Aug 28 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: 1670
Issue Time: 2013 Aug 27 2237 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 27 2233 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: 2165
Issue Time: 2013 Aug 27 2229 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 27 2228 UTC
Valid To: 2013 Aug 28 0600 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: ALTK05
Serial Number: 728
Issue Time: 2013 Aug 27 1947 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Aug 27 1943 UTC
Synoptic Period: 1800-2100 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: 869
Issue Time: 2013 Aug 27 1926 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Aug 27 1925 UTC
Valid To: 2013 Aug 27 2100 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: 1669
Issue Time: 2013 Aug 27 1826 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 27 1824 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: 2164
Issue Time: 2013 Aug 27 1708 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 27 1710 UTC
Valid To: 2013 Aug 27 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: 2077
Issue Time: 2013 Aug 27 1113 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2076
Begin Time: 2013 Aug 23 1500 UTC
Yesterday Maximum 2MeV Flux: 1952 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2076
Issue Time: 2013 Aug 26 1206 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2075
Begin Time: 2013 Aug 23 1500 UTC
Yesterday Maximum 2MeV Flux: 1736 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2075
Issue Time: 2013 Aug 25 1231 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2074
Begin Time: 2013 Aug 23 1500 UTC
Yesterday Maximum 2MeV Flux: 3576 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 548
Issue Time: 2013 Aug 25 1150 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 547
Original Issue Time: 2013 Aug 22 1449 UTC

Comment: G1 conditions no longer expected as CME effects subside.
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: 2074
Issue Time: 2013 Aug 24 1236 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2073
Begin Time: 2013 Aug 23 1500 UTC
Yesterday Maximum 2MeV Flux: 1857 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2073
Issue Time: 2013 Aug 23 1515 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Aug 23 1500 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: 2163
Issue Time: 2013 Aug 23 0654 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2162
Valid From: 2013 Aug 22 1932 UTC
Now Valid Until: 2013 Aug 23 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: 2162
Issue Time: 2013 Aug 22 2255 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2161
Valid From: 2013 Aug 22 1932 UTC
Now Valid Until: 2013 Aug 23 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: ALTK04
Serial Number: 1668
Issue Time: 2013 Aug 22 2046 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 22 2043 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: 2161
Issue Time: 2013 Aug 22 1932 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 22 1932 UTC
Valid To: 2013 Aug 22 2300 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: 547
Issue Time: 2013 Aug 22 1449 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 23: None (Below G1) Aug 24: G1 (Minor) Aug 25: 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: WARK04
Serial Number: 2160
Issue Time: 2013 Aug 22 0656 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2159
Valid From: 2013 Aug 21 2345 UTC
Now Valid Until: 2013 Aug 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: 1667
Issue Time: 2013 Aug 22 0004 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 21 2359 UTC
Synoptic Period: 2100-0000 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: 2159
Issue Time: 2013 Aug 21 2335 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 21 2345 UTC
Valid To: 2013 Aug 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: ALTK04
Serial Number: 1666
Issue Time: 2013 Aug 21 1921 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 21 1914 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: No

Comment: Active warning was valid from 21/1915 UTC to 21/2300UTC. Latentcy of observed data prevented confirmation of the threshold being reached until 21/1918 UTC.
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: 2158
Issue Time: 2013 Aug 21 1912 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 21 1915 UTC
Valid To: 2013 Aug 22 2300 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: 2157
Issue Time: 2013 Aug 21 1236 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2156
Valid From: 2013 Aug 21 0215 UTC
Now Valid Until: 2013 Aug 21 1600 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: 1665
Issue Time: 2013 Aug 21 0518 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 21 0507 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: 2156
Issue Time: 2013 Aug 21 0213 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 21 0215 UTC
Valid To: 2013 Aug 21 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: 178
Issue Time: 2013 Aug 20 2239 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Aug 20 2231 UTC
Deviation: 26 nT
Station: bou


Space Weather Message Code: ALTEF3
Serial Number: 2072
Issue Time: 2013 Aug 20 0503 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2071
Begin Time: 2013 Aug 16 1800 UTC
Yesterday Maximum 2MeV Flux: 6050 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2071
Issue Time: 2013 Aug 19 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2070
Begin Time: 2013 Aug 16 1800 UTC
Yesterday Maximum 2MeV Flux: 4650 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2070
Issue Time: 2013 Aug 18 0541 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2069
Begin Time: 2013 Aug 16 1800 UTC
Yesterday Maximum 2MeV Flux: 4301 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: SUM10R
Serial Number: 588
Issue Time: 2013 Aug 17 1947 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Aug 17 1908 UTC
Maximum Time: 2013 Aug 17 1915 UTC
End Time: 2013 Aug 17 1933 UTC
Duration: 25 minutes
Peak Flux: 150 sfu
Latest Penticton Noon Flux: 120 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: ALTTP2
Serial Number: 865
Issue Time: 2013 Aug 17 1932 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Aug 17 1856 UTC
Estimated Velocity: 1399 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: 424
Issue Time: 2013 Aug 17 1932 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Aug 17 1909 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: 2069
Issue Time: 2013 Aug 17 0843 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2068
Begin Time: 2013 Aug 16 1800 UTC
Yesterday Maximum 2MeV Flux: 1355 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2068
Issue Time: 2013 Aug 16 1816 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Aug 16 1800 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK04
Serial Number: 1664
Issue Time: 2013 Aug 16 1804 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 16 1759 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: 2155
Issue Time: 2013 Aug 16 1250 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 16 1251 UTC
Valid To: 2013 Aug 17 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: ALTK05
Serial Number: 727
Issue Time: 2013 Aug 16 0344 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Aug 16 0344 UTC
Synoptic Period: 0300-0600 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: 2154
Issue Time: 2013 Aug 16 0337 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2153
Valid From: 2013 Aug 15 0230 UTC
Now Valid Until: 2013 Aug 16 1100 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: 868
Issue Time: 2013 Aug 16 0337 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Aug 16 0336 UTC
Valid To: 2013 Aug 16 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: ALTTP2
Serial Number: 864
Issue Time: 2013 Aug 15 2316 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Aug 15 2217 UTC
Estimated Velocity: 1019 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: 2153
Issue Time: 2013 Aug 15 2248 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2152
Valid From: 2013 Aug 15 0230 UTC
Now Valid Until: 2013 Aug 16 0500 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: 2152
Issue Time: 2013 Aug 15 1156 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2151
Valid From: 2013 Aug 15 0230 UTC
Now Valid Until: 2013 Aug 15 2300 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: 1663
Issue Time: 2013 Aug 15 0308 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 15 0300 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: ALTK04
Serial Number: 1662
Issue Time: 2013 Aug 15 0306 UTC

CANCEL ALERT: Geomagnetic K-index of 4
Cancel Serial Number: 1661
Original Issue Time: 2013 Aug 15 0301 UTC

Comment: Threshold was reached during the 0000 - 0300 UTC synoptic period not the 0300-0600 UTC period.
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: 1661
Issue Time: 2013 Aug 15 0301 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 15 0300 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: 2151
Issue Time: 2013 Aug 15 0232 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 15 0230 UTC
Valid To: 2013 Aug 15 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: WARK04
Serial Number: 2150
Issue Time: 2013 Aug 14 1318 UTC

CANCEL WARNING: Geomagnetic K-index of 4 expected
Cancel Serial Number: 2149
Original Issue Time: 2013 Aug 13 1727 UTC

Comment: Conditions for this Alert are no longer present.
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: 2149
Issue Time: 2013 Aug 14 1156 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2148
Valid From: 2013 Aug 13 1730 UTC
Now Valid Until: 2013 Aug 14 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: WARK04
Serial Number: 2148
Issue Time: 2013 Aug 13 2355 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2147
Valid From: 2013 Aug 13 1730 UTC
Now Valid Until: 2013 Aug 14 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: WATA20
Serial Number: 546
Issue Time: 2013 Aug 13 1956 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 14: G1 (Minor) Aug 15: None (Below G1) Aug 16: 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: 1660
Issue Time: 2013 Aug 13 1739 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 13 1735 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: 2147
Issue Time: 2013 Aug 13 1727 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 13 1730 UTC
Valid To: 2013 Aug 14 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: 2067
Issue Time: 2013 Aug 10 1338 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2066
Begin Time: 2013 Aug 05 1325 UTC
Yesterday Maximum 2MeV Flux: 3146 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2066
Issue Time: 2013 Aug 09 0505 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2065
Begin Time: 2013 Aug 05 1325 UTC
Yesterday Maximum 2MeV Flux: 4421 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 545
Issue Time: 2013 Aug 08 1834 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 09: None (Below G1) Aug 10: G1 (Minor) Aug 11: 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: 2065
Issue Time: 2013 Aug 08 0506 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2064
Begin Time: 2013 Aug 05 1325 UTC
Yesterday Maximum 2MeV Flux: 7174 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 544
Issue Time: 2013 Aug 07 1955 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Aug 08: None (Below G1) Aug 09: None (Below G1) Aug 10: 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: 2064
Issue Time: 2013 Aug 07 0515 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2063
Begin Time: 2013 Aug 05 1325 UTC
Yesterday Maximum 2MeV Flux: 5207 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTTP2
Serial Number: 863
Issue Time: 2013 Aug 06 0812 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Aug 06 0156 UTC
Estimated Velocity: 1411 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: 2063
Issue Time: 2013 Aug 06 0510 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2062
Begin Time: 2013 Aug 05 1325 UTC
Yesterday Maximum 2MeV Flux: 2771 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTEF3
Serial Number: 2062
Issue Time: 2013 Aug 05 1341 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Aug 05 1325 UTC
Station: GOES-13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: ALTK05
Serial Number: 726
Issue Time: 2013 Aug 05 0301 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Aug 05 0300 UTC
Synoptic Period: 0300-0600 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: 867
Issue Time: 2013 Aug 05 0234 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Aug 05 0235 UTC
Valid To: 2013 Aug 05 0900 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: 2146
Issue Time: 2013 Aug 05 0013 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2145
Valid From: 2013 Aug 04 1620 UTC
Now Valid Until: 2013 Aug 05 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: 725
Issue Time: 2013 Aug 04 1735 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2013 Aug 04 1735 UTC
Synoptic Period: 1500-1800 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: 866
Issue Time: 2013 Aug 04 1709 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Aug 04 1709 UTC
Valid To: 2013 Aug 05 0100 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: 1659
Issue Time: 2013 Aug 04 1635 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Aug 04 1630 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: 2145
Issue Time: 2013 Aug 04 1620 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Aug 04 1620 UTC
Valid To: 2013 Aug 05 0100 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: 2061
Issue Time: 2013 Aug 01 1453 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Aug 01 1435 UTC
Station: GOES13
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.