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Alerts Issued in March 2014


Space Weather Message Code: ALTTP4
Serial Number: 454
Issue Time: 2014 Mar 31 0901 UTC

ALERT: Type IV Radio Emission
Begin Time: 2014 Mar 31 0817 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: WATA20
Serial Number: 570
Issue Time: 2014 Mar 30 1759 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Mar 31: None (Below G1) Apr 01: None (Below G1) Apr 02: 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: ALTTP2
Serial Number: 920
Issue Time: 2014 Mar 30 1230 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 30 1152 UTC
Estimated Velocity: 879 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: SUMX01
Serial Number: 98
Issue Time: 2014 Mar 29 1821 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2014 Mar 29 1735 UTC
Maximum Time: 2014 Mar 29 1748 UTC
End Time: 2014 Mar 29 1754 UTC
X-ray Class: X1.0
Optical Class: 2b
Location: N11W34
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.


Space Weather Message Code: ALTTP2
Serial Number: 919
Issue Time: 2014 Mar 29 1821 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 29 1753 UTC
Estimated Velocity: 4508 km/s

Comment: Associated with X1/2b event from Region 2017. Also associated with Castelli U radio Burst with 110,000 sfu burst on 245 MHz.
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: 613
Issue Time: 2014 Mar 29 1821 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2014 Mar 29 1745 UTC
Maximum Time: 2014 Mar 29 1746 UTC
End Time: 2014 Mar 29 1748 UTC
Duration: 3 minutes
Peak Flux: 360 sfu
Latest Penticton Noon Flux: 146 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: 215
Issue Time: 2014 Mar 29 1747 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2014 Mar 29 1746 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: ALTTP2
Serial Number: 918
Issue Time: 2014 Mar 29 0040 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 28 2350 UTC
Estimated Velocity: 857 km/s

Comment: Associated with M2/1n flare from Region 2017 (N10W20).
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: ALTTP2
Serial Number: 917
Issue Time: 2014 Mar 28 1949 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 28 1918 UTC
Estimated Velocity: 528 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: 2239
Issue Time: 2014 Mar 26 0647 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2238
Valid From: 2014 Mar 25 2030 UTC
Now Valid Until: 2014 Mar 26 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: 1699
Issue Time: 2014 Mar 26 0149 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2014 Mar 26 0142 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: SUMSUD
Serial Number: 189
Issue Time: 2014 Mar 25 2015 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2014 Mar 25 2009 UTC
Deviation: 23 nT
Station: HAD


Space Weather Message Code: WARK04
Serial Number: 2238
Issue Time: 2014 Mar 25 1943 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2014 Mar 25 2030 UTC
Valid To: 2014 Mar 26 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: WARSUD
Serial Number: 150
Issue Time: 2014 Mar 25 1936 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2014 Mar 25 2010 UTC
Valid To: 2014 Mar 25 2040 UTC
IP Shock Passage Observed: 2014 Mar 25 1925 UTC


Space Weather Message Code: ALTTP4
Serial Number: 453
Issue Time: 2014 Mar 20 1521 UTC

ALERT: Type IV Radio Emission
Begin Time: 2014 Mar 20 1415 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: ALTTP4
Serial Number: 452
Issue Time: 2014 Mar 20 0448 UTC

ALERT: Type IV Radio Emission
Begin Time: 2014 Mar 20 0407 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: 916
Issue Time: 2014 Mar 20 0428 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 20 0352 UTC
Estimated Velocity: 572 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: 451
Issue Time: 2014 Mar 19 0443 UTC

ALERT: Type IV Radio Emission
Begin Time: 2014 Mar 19 0405 UTC

Comment: Type IV sweep intensity weak.
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: 915
Issue Time: 2014 Mar 19 0425 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 19 0358 UTC
Estimated Velocity: 320 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: ALTTP2
Serial Number: 914
Issue Time: 2014 Mar 18 2326 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 18 2253 UTC
Estimated Velocity: 256 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: 2237
Issue Time: 2014 Mar 13 0642 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 2236
Valid From: 2014 Mar 13 0035 UTC
Now Valid Until: 2014 Mar 13 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: 739
Issue Time: 2014 Mar 13 0224 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2014 Mar 13 0218 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: 893
Issue Time: 2014 Mar 13 0103 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2014 Mar 13 0105 UTC
Valid To: 2014 Mar 13 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: ALTK04
Serial Number: 1698
Issue Time: 2014 Mar 13 0037 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2014 Mar 13 0028 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: 2236
Issue Time: 2014 Mar 13 0033 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2014 Mar 13 0035 UTC
Valid To: 2014 Mar 13 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: SUMXM5
Serial Number: 114
Issue Time: 2014 Mar 12 2258 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2014 Mar 12 2228 UTC
Maximum Time: 2014 Mar 12 2234 UTC
End Time: 2014 Mar 12 2239 UTC
X-ray Class: M9.3
Location: N15W90
NOAA Scale: R2 - Moderate

Comment: Location (Region 1996) based on SDO-EVE SAM and ESP instrument data.
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: ALTXMF
Serial Number: 214
Issue Time: 2014 Mar 12 2235 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2014 Mar 12 2233 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: ALTTP2
Serial Number: 913
Issue Time: 2014 Mar 06 0959 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 06 0927 UTC
Estimated Velocity: 495 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: ALTTP2
Serial Number: 912
Issue Time: 2014 Mar 05 1411 UTC

ALERT: Type II Radio Emission
Begin Time: 2014 Mar 05 1333 UTC
Estimated Velocity: 1447 km/s

Comment: Likely associated with a far-side event, based on STEREO-A coronagraph images.
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: SUMPX1
Serial Number: 74
Issue Time: 2014 Mar 03 0615 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2014 Feb 25 1355 UTC
Maximum Time: 2014 Feb 28 0845 UTC
End Time: 2014 Mar 03 0150 UTC
Maximum 10MeV Flux: 103 pfu
NOAA Scale: S2 - Moderate


Space Weather Message Code: WARPX1
Serial Number: 424
Issue Time: 2014 Mar 02 1456 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 423
Valid From: 2014 Feb 25 0830 UTC
Now Valid Until: 2014 Mar 03 0400 UTC
Warning Condition: Persistence
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: 2235
Issue Time: 2014 Mar 02 0245 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2014 Mar 02 0245 UTC
Valid To: 2014 Mar 02 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: SUMPX2
Serial Number: 37
Issue Time: 2014 Mar 01 1247 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2014 Feb 28 0835 UTC
Maximum Time: 2014 Feb 28 0845 UTC
End Time: 2014 Feb 28 0930 UTC
Maximum 10MeV Flux: 103 pfu
NOAA Scale: S2 - Moderate


Space Weather Message Code: WARPX1
Serial Number: 423
Issue Time: 2014 Mar 01 1153 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 422
Valid From: 2014 Feb 25 0830 UTC
Now Valid Until: 2014 Mar 02 1500 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: The 10 MeV proton flux values continue to decrease slowly but remain at S1 (Minor) levels.
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.