NOAA / Space Weather Prediction Center

Mass Ejection graphic

Space Weather Alerts

Alerts/Displays - Archive - Email Registration - Help/Samples

Alerts in Graphical Timelines: Past 7 days and Currently in Effect
Alerts in Text Format: Current month and Previous month

Alerts Issued in January 2013


Space Weather Message Code: WARK04
Serial Number: 2044
Issue Time: 2013 Jan 27 0202 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2043
Valid From: 2013 Jan 26 0001 UTC
Now Valid Until: 2013 Jan 27 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: 2043
Issue Time: 2013 Jan 26 1716 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2042
Valid From: 2013 Jan 26 0001 UTC
Now Valid Until: 2013 Jan 27 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: WARK04
Serial Number: 2042
Issue Time: 2013 Jan 26 1248 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2041
Valid From: 2013 Jan 26 0001 UTC
Now Valid Until: 2013 Jan 26 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: 1624
Issue Time: 2013 Jan 26 0136 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jan 26 0132 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: 2041
Issue Time: 2013 Jan 26 0000 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jan 26 0001 UTC
Valid To: 2013 Jan 26 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: 510
Issue Time: 2013 Jan 20 1556 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 509
Original Issue Time: 2013 Jan 18 0204 UTC

Comment: Geomagnetic Storm Category G1 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: WARK04
Serial Number: 2040
Issue Time: 2013 Jan 20 0849 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jan 20 0848 UTC
Valid To: 2013 Jan 20 1600 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: 166
Issue Time: 2013 Jan 19 1739 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2013 Jan 19 1733 UTC
Deviation: 21 nT
Station: Boulder


Space Weather Message Code: WARSUD
Serial Number: 124
Issue Time: 2013 Jan 19 1704 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Jan 19 1715 UTC
Valid To: 2013 Jan 19 1815 UTC
IP Shock Passage Observed: 2013 Jan 19 1647 UTC


Space Weather Message Code: ALTTP2
Serial Number: 835
Issue Time: 2013 Jan 18 1734 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jan 18 1710 UTC
Estimated Velocity: 1695 km/s

Comment: Sagamore Hill reports velocity accuracy +/- 318 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: 1985
Issue Time: 2013 Jan 18 1256 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1984
Begin Time: 2013 Jan 17 1315 UTC
Yesterday Maximum 2MeV Flux: 1136 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.


Space Weather Message Code: WATA20
Serial Number: 509
Issue Time: 2013 Jan 18 0204 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jan 18: G1 (Minor) Jan 19: None (Below G1) Jan 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: WATA20
Serial Number: 508
Issue Time: 2013 Jan 17 2029 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Jan 18: None (Below G1) Jan 19: None (Below G1) Jan 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: WARK05
Serial Number: 820
Issue Time: 2013 Jan 17 2029 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 819
Valid From: 2013 Jan 17 1545 UTC
Now Valid Until: 2013 Jan 18 0700 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: 2039
Issue Time: 2013 Jan 17 2029 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2038
Valid From: 2013 Jan 17 1500 UTC
Now Valid Until: 2013 Jan 18 1000 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: 1623
Issue Time: 2013 Jan 17 1531 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 Jan 17 1526 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: WARK05
Serial Number: 819
Issue Time: 2013 Jan 17 1530 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2013 Jan 17 1545 UTC
Valid To: 2013 Jan 17 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: WARK04
Serial Number: 2038
Issue Time: 2013 Jan 17 1529 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2037
Valid From: 2013 Jan 17 1500 UTC
Now Valid Until: 2013 Jan 18 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: WARK04
Serial Number: 2037
Issue Time: 2013 Jan 17 1451 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jan 17 1500 UTC
Valid To: 2013 Jan 17 1800 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: 1984
Issue Time: 2013 Jan 17 1343 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2013 Jan 17 1315 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: 2036
Issue Time: 2013 Jan 13 2305 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2013 Jan 13 2305 UTC
Valid To: 2013 Jan 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: ALTTP2
Serial Number: 834
Issue Time: 2013 Jan 13 0918 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jan 13 0839 UTC
Estimated Velocity: 907 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: 400
Issue Time: 2013 Jan 13 0918 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jan 13 0845 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: SUM10R
Serial Number: 571
Issue Time: 2013 Jan 11 1859 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jan 11 1845 UTC
Maximum Time: 2013 Jan 11 1846 UTC
End Time: 2013 Jan 11 1846 UTC
Duration: 1 minutes
Peak Flux: 330 sfu
Latest Penticton Noon Flux: 174 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: 399
Issue Time: 2013 Jan 11 1006 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jan 11 0930 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: 833
Issue Time: 2013 Jan 11 0940 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jan 11 0914 UTC
Estimated Velocity: 537 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: SUM10R
Serial Number: 570
Issue Time: 2013 Jan 05 0023 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jan 04 2348 UTC
Maximum Time: 2013 Jan 04 2348 UTC
End Time: 2013 Jan 04 2351 UTC
Duration: 3 minutes
Peak Flux: 170 sfu
Latest Penticton Noon Flux: 143 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.