______________________________________________________
Space Weather Message Code: ALTTP2
Serial Number: 1379
Issue Time: 2024 Dec 05 1111 UTC
ALERT: Type II Radio Emission
Begin Time: 2024 Dec 05 1040 UTC
Estimated Velocity: 456 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: 1378
Issue Time: 2024 Dec 04 1046 UTC
ALERT: Type II Radio Emission
Begin Time: 2024 Dec 04 1004 UTC
Estimated Velocity: 423 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: 4766
Issue Time: 2024 Dec 03 0855 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4765
Valid From: 2024 Dec 02 2321 UTC
Now Valid Until: 2024 Dec 03 1500 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 2504
Issue Time: 2024 Dec 03 0309 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Dec 03 0259 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 4765
Issue Time: 2024 Dec 02 2322 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Dec 02 2321 UTC
Valid To: 2024 Dec 03 0900 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 1679
Issue Time: 2024 Nov 30 0242 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Nov 30 0242 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 1954
Issue Time: 2024 Nov 30 0155 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Nov 30 0155 UTC
Valid To: 2024 Nov 30 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 2503
Issue Time: 2024 Nov 30 0124 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 30 0123 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 4764
Issue Time: 2024 Nov 30 0115 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 30 0112 UTC
Valid To: 2024 Nov 30 1500 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: WATA30
Serial Number: 246
Issue Time: 2024 Nov 29 1734 UTC
CANCEL WATCH: Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 245
Original Issue Time: 2024 Nov 26 1749 UTC
Comment: G2 conditions are no longer anticipated.
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
______________________________________________________
Space Weather Message Code: WATA30
Serial Number: 245
Issue Time: 2024 Nov 26 1749 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Nov 27: None (Below G1) Nov 28: G1 (Minor) Nov 29: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
______________________________________________________
Space Weather Message Code: ALTTP2
Serial Number: 1377
Issue Time: 2024 Nov 26 0013 UTC
ALERT: Type II Radio Emission
Begin Time: 2024 Nov 25 2200 UTC
Estimated Velocity: 490 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: 1376
Issue Time: 2024 Nov 25 2107 UTC
ALERT: Type II Radio Emission
Begin Time: 2024 Nov 25 2043 UTC
Estimated Velocity: 248 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: 849
Issue Time: 2024 Nov 25 0821 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2024 Nov 25 0733 UTC
Maximum Time: 2024 Nov 25 0734 UTC
End Time: 2024 Nov 25 0736 UTC
Duration: 3 minutes
Peak Flux: 210 sfu
Latest Penticton Noon Flux: 203 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: SUMXM5
Serial Number: 271
Issue Time: 2024 Nov 25 0815 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Nov 25 0724 UTC
Maximum Time: 2024 Nov 25 0742 UTC
End Time: 2024 Nov 25 0802 UTC
X-ray Class: M9.4
Location: N21E90
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 453
Issue Time: 2024 Nov 25 0738 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Nov 25 0736 UTC
NOAA Scale: R2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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/products/d-region-absorption-predictions-d-rap.
______________________________________________________
Space Weather Message Code: ALTK04
Serial Number: 2502
Issue Time: 2024 Nov 24 2336 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Nov 24 2328 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 4763
Issue Time: 2024 Nov 24 2308 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Nov 24 2308 UTC
Valid To: 2024 Nov 25 0600 UTC
Warning Condition: Onset
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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: 4762
Issue Time: 2024 Nov 22 2316 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4761
Valid From: 2024 Nov 22 1719 UTC
Now Valid Until: 2024 Nov 23 0600 UTC
Warning Condition: Persistence
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
______________________________________________________
Space Weather Message Code: SUMPX1
Serial Number: 119
Issue Time: 2024 Nov 22 2035 UTC
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Nov 21 1925 UTC
Maximum Time: 2024 Nov 22 0355 UTC
End Time: 2024 Nov 22 1845 UTC
Maximum 10MeV Flux: 125 pfu
NOAA Scale: S2 - Moderate
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
______________________________________________________
https://www.swpc.noaa.gov/products/alerts-watches-and-warnings