Сповіщення і попередження NOAA SWPC

Національний центр прогнозування метеорологічної погоди (NOAA SWPC) є офіційним агентством космічної погоди США, яке оперативно здійснює оповіщення про її зміни. Нижче ви знайдете останні повідомлення про погоду в космосі, прогнози, часові інтервали і попередження, від NOAA SWPC.

понеділок, 3 лютого 2025

04:12 UTC

Space Weather Message Code: SUMXM5
Serial Number: 283
Issue Time: 2025 Feb 03 0412 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Feb 03 0352 UTC
Maximum Time: 2025 Feb 03 0358 UTC
End Time: 2025 Feb 03 0404 UTC
X-ray Class: M8.8
Location: N05E24
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.

03:57 UTC

Space Weather Message Code: ALTXMF
Serial Number: 471
Issue Time: 2025 Feb 03 0357 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Feb 03 0358 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.

неділя, 2 лютого 2025

15:51 UTC

Space Weather Message Code: WARK05
Serial Number: 1969
Issue Time: 2025 Feb 02 1551 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Feb 02 1550 UTC
Valid To: 2025 Feb 02 2359 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.

15:46 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3418
Issue Time: 2025 Feb 02 1546 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Feb 02 1530 UTC
Station: GOES16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

14:15 UTC

Space Weather Message Code: SUMXM5
Serial Number: 282
Issue Time: 2025 Feb 02 1415 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Feb 02 1358 UTC
Maximum Time: 2025 Feb 02 1404 UTC
End Time: 2025 Feb 02 1408 UTC
X-ray Class: M5.1
Location: N18E03
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.

14:05 UTC

Space Weather Message Code: ALTXMF
Serial Number: 470
Issue Time: 2025 Feb 02 1405 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Feb 02 1404 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.

10:40 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1398
Issue Time: 2025 Feb 02 1040 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Feb 02 1018 UTC
Estimated Velocity: 664 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.

06:22 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1397
Issue Time: 2025 Feb 02 0622 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Feb 02 0540 UTC
Estimated Velocity: 736 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.

05:15 UTC

Space Weather Message Code: WARK04
Serial Number: 4822
Issue Time: 2025 Feb 02 0515 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4821
Valid From: 2025 Feb 01 0023 UTC
Now Valid Until: 2025 Feb 02 2359 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.

субота, 1 лютого 2025

14:59 UTC

Space Weather Message Code: WARK04
Serial Number: 4821
Issue Time: 2025 Feb 01 1459 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4820
Valid From: 2025 Feb 01 0023 UTC
Now Valid Until: 2025 Feb 02 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.

14:59 UTC

Space Weather Message Code: WARK05
Serial Number: 1968
Issue Time: 2025 Feb 01 1459 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Feb 01 1457 UTC
Valid To: 2025 Feb 01 2359 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.

13:52 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1396
Issue Time: 2025 Feb 01 1352 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Feb 01 1328 UTC
Estimated Velocity: 264 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.

02:40 UTC

Space Weather Message Code: ALTK04
Serial Number: 2523
Issue Time: 2025 Feb 01 0240 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Feb 01 0230 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.

00:24 UTC

Space Weather Message Code: WARK04
Serial Number: 4820
Issue Time: 2025 Feb 01 0024 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Feb 01 0023 UTC
Valid To: 2025 Feb 01 1800 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.

пʼятниця, 31 січня 2025

14:30 UTC

Space Weather Message Code: SUMXM5
Serial Number: 281
Issue Time: 2025 Jan 31 1430 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Jan 31 1340 UTC
Maximum Time: 2025 Jan 31 1406 UTC
End Time: 2025 Jan 31 1425 UTC
X-ray Class: M6.7
Location: N14E41
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.

14:20 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1395
Issue Time: 2025 Jan 31 1420 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 31 1356 UTC
Estimated Velocity: 673 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.

14:18 UTC

Space Weather Message Code: SUM10R
Serial Number: 857
Issue Time: 2025 Jan 31 1418 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2025 Jan 31 1348 UTC
Maximum Time: 2025 Jan 31 1352 UTC
End Time: 2025 Jan 31 1402 UTC
Duration: 14 minutes
Peak Flux: 280 sfu
Latest Penticton Noon Flux: 184 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.

13:58 UTC

Space Weather Message Code: ALTXMF
Serial Number: 469
Issue Time: 2025 Jan 31 1358 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Jan 31 1358 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.

четвер, 30 січня 2025

17:06 UTC

Space Weather Message Code: WATA20
Serial Number: 1025
Issue Time: 2025 Jan 30 1706 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jan 31: G1 (Minor) Feb 01: G1 (Minor) Feb 02: None (Below G1)

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 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.

середа, 29 січня 2025

18:54 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1394
Issue Time: 2025 Jan 29 1854 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 29 1821 UTC
Estimated Velocity: 487 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.

вівторок, 28 січня 2025

20:57 UTC

Space Weather Message Code: ALTK04
Serial Number: 2522
Issue Time: 2025 Jan 28 2057 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 28 2021 UTC
Synoptic Period: 1800-2100 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.

20:51 UTC

Space Weather Message Code: WARK04
Serial Number: 4819
Issue Time: 2025 Jan 28 2051 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 28 2021 UTC
Valid To: 2025 Jan 29 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.

08:47 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1393
Issue Time: 2025 Jan 28 0847 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 28 0806 UTC
Estimated Velocity: 580 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.

понеділок, 27 січня 2025

14:30 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3417
Issue Time: 2025 Jan 27 1430 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Jan 27 1415 UTC
Station: GOES-16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

пʼятниця, 24 січня 2025

17:04 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1392
Issue Time: 2025 Jan 24 1704 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 24 1622 UTC
Estimated Velocity: 273 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.

четвер, 23 січня 2025

17:42 UTC

Space Weather Message Code: WARK04
Serial Number: 4818
Issue Time: 2025 Jan 23 1742 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 23 1742 UTC
Valid To: 2025 Jan 23 2100 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.

13:36 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3416
Issue Time: 2025 Jan 23 1336 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3415
Begin Time: 2025 Jan 22 1535 UTC
Yesterday Maximum 2MeV Flux: 1497 pfu



Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

середа, 22 січня 2025

22:08 UTC

Space Weather Message Code: WATA20
Serial Number: 1024
Issue Time: 2025 Jan 22 2208 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jan 23: None (Below G1) Jan 24: None (Below G1) Jan 25: G1 (Minor)

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 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.

16:35 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3415
Issue Time: 2025 Jan 22 1635 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Jan 22 1535 UTC
Station: GOES16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

11:50 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1391
Issue Time: 2025 Jan 22 1150 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 22 1058 UTC
Estimated Velocity: 561 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.

01:30 UTC

Space Weather Message Code: WARK04
Serial Number: 4817
Issue Time: 2025 Jan 22 0130 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 22 0130 UTC
Valid To: 2025 Jan 22 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.

вівторок, 21 січня 2025

11:01 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1390
Issue Time: 2025 Jan 21 1101 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 21 1027 UTC
Estimated Velocity: 565 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.

понеділок, 20 січня 2025

23:12 UTC

Space Weather Message Code: WARK04
Serial Number: 4816
Issue Time: 2025 Jan 20 2312 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4815
Valid From: 2025 Jan 19 0709 UTC
Now Valid Until: 2025 Jan 21 1200 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.

13:58 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3414
Issue Time: 2025 Jan 20 1358 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Jan 20 1340 UTC
Station: GOES16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

13:31 UTC

Space Weather Message Code: WARK05
Serial Number: 1967
Issue Time: 2025 Jan 20 1331 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Jan 20 1332 UTC
Valid To: 2025 Jan 20 2100 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.

12:43 UTC

Space Weather Message Code: WARK04
Serial Number: 4815
Issue Time: 2025 Jan 20 1243 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4814
Valid From: 2025 Jan 19 0709 UTC
Now Valid Until: 2025 Jan 20 2359 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.

неділя, 19 січня 2025

22:44 UTC

Space Weather Message Code: WARK04
Serial Number: 4814
Issue Time: 2025 Jan 19 2244 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4813
Valid From: 2025 Jan 19 0709 UTC
Now Valid Until: 2025 Jan 20 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.

09:05 UTC

Space Weather Message Code: ALTK04
Serial Number: 2521
Issue Time: 2025 Jan 19 0905 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 19 0859 UTC
Synoptic Period: 0600-0900 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.

07:10 UTC

Space Weather Message Code: WARK04
Serial Number: 4813
Issue Time: 2025 Jan 19 0710 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 19 0709 UTC
Valid To: 2025 Jan 19 2359 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.

пʼятниця, 17 січня 2025

14:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4812
Issue Time: 2025 Jan 17 1454 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4811
Valid From: 2025 Jan 16 2048 UTC
Now Valid Until: 2025 Jan 18 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.

14:00 UTC

Space Weather Message Code: SUMXM5
Serial Number: 280
Issue Time: 2025 Jan 17 1400 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Jan 17 1324 UTC
Maximum Time: 2025 Jan 17 1335 UTC
End Time: 2025 Jan 17 1339 UTC
X-ray Class: M7.4
Location: N06W27
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.

13:35 UTC

Space Weather Message Code: ALTXMF
Serial Number: 468
Issue Time: 2025 Jan 17 1335 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Jan 17 1334 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.

04:26 UTC

Space Weather Message Code: ALTK04
Serial Number: 2520
Issue Time: 2025 Jan 17 0426 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 17 0426 UTC
Synoptic Period: 0300-0600 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.

четвер, 16 січня 2025

20:48 UTC

Space Weather Message Code: WARK04
Serial Number: 4811
Issue Time: 2025 Jan 16 2048 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 16 2048 UTC
Valid To: 2025 Jan 17 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.

02:43 UTC

Space Weather Message Code: WARK04
Serial Number: 4810
Issue Time: 2025 Jan 16 0243 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 16 0242 UTC
Valid To: 2025 Jan 16 1200 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.

середа, 15 січня 2025

16:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4809
Issue Time: 2025 Jan 15 1654 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4808
Valid From: 2025 Jan 15 0138 UTC
Now Valid Until: 2025 Jan 15 2100 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.

08:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4808
Issue Time: 2025 Jan 15 0854 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4807
Valid From: 2025 Jan 15 0138 UTC
Now Valid Until: 2025 Jan 15 1800 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.

03:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2519
Issue Time: 2025 Jan 15 0302 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 15 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.

01:39 UTC

Space Weather Message Code: WARK04
Serial Number: 4807
Issue Time: 2025 Jan 15 0139 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 15 0138 UTC
Valid To: 2025 Jan 15 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.

вівторок, 14 січня 2025

17:28 UTC

Space Weather Message Code: WARK04
Serial Number: 4806
Issue Time: 2025 Jan 14 1728 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 14 1800 UTC
Valid To: 2025 Jan 14 2359 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.

понеділок, 13 січня 2025

17:24 UTC

Space Weather Message Code: WARK04
Serial Number: 4805
Issue Time: 2025 Jan 13 1724 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4804
Valid From: 2025 Jan 13 0105 UTC
Now Valid Until: 2025 Jan 13 2359 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.

13:21 UTC

Space Weather Message Code: WARK04
Serial Number: 4804
Issue Time: 2025 Jan 13 1321 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4803
Valid From: 2025 Jan 13 0105 UTC
Now Valid Until: 2025 Jan 13 1800 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.

01:24 UTC

Space Weather Message Code: ALTK04
Serial Number: 2518
Issue Time: 2025 Jan 13 0124 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 13 0122 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.

01:06 UTC

Space Weather Message Code: WARK04
Serial Number: 4803
Issue Time: 2025 Jan 13 0106 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 13 0105 UTC
Valid To: 2025 Jan 13 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.

пʼятниця, 10 січня 2025

22:48 UTC

Space Weather Message Code: ALTK04
Serial Number: 2517
Issue Time: 2025 Jan 10 2248 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 10 2247 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.

22:46 UTC

Space Weather Message Code: WARK04
Serial Number: 4802
Issue Time: 2025 Jan 10 2246 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 10 2245 UTC
Valid To: 2025 Jan 10 2359 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.

04:08 UTC

Space Weather Message Code: WARK04
Serial Number: 4801
Issue Time: 2025 Jan 10 0408 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 10 0408 UTC
Valid To: 2025 Jan 10 1200 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.

четвер, 9 січня 2025

14:19 UTC

Space Weather Message Code: ALTK04
Serial Number: 2516
Issue Time: 2025 Jan 09 1419 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 09 1407 UTC
Synoptic Period: 1200-1500 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.

13:24 UTC

Space Weather Message Code: WARK04
Serial Number: 4800
Issue Time: 2025 Jan 09 1324 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 09 1325 UTC
Valid To: 2025 Jan 09 2100 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.

10:52 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3413
Issue Time: 2025 Jan 09 1052 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3412
Begin Time: 2025 Jan 06 1430 UTC
Yesterday Maximum 2MeV Flux: 1555 pfu



Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

середа, 8 січня 2025

12:45 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3412
Issue Time: 2025 Jan 08 1245 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3411
Begin Time: 2025 Jan 06 1430 UTC
Yesterday Maximum 2MeV Flux: 3074 pfu



Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

02:37 UTC

Space Weather Message Code: ALTK04
Serial Number: 2515
Issue Time: 2025 Jan 08 0237 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 08 0237 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.

02:21 UTC

Space Weather Message Code: WARK04
Serial Number: 4799
Issue Time: 2025 Jan 08 0221 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 08 0220 UTC
Valid To: 2025 Jan 08 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.

вівторок, 7 січня 2025

16:40 UTC

Space Weather Message Code: WARK04
Serial Number: 4798
Issue Time: 2025 Jan 07 1640 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 07 1639 UTC
Valid To: 2025 Jan 07 2100 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.

11:52 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3411
Issue Time: 2025 Jan 07 1152 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3410
Begin Time: 2025 Jan 06 1430 UTC
Yesterday Maximum 2MeV Flux: 1508 pfu



Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

понеділок, 6 січня 2025

17:05 UTC

Space Weather Message Code: ALTTP4
Serial Number: 676
Issue Time: 2025 Jan 06 1705 UTC

ALERT: Type IV Radio Emission
Begin Time: 2025 Jan 06 1628 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.

16:51 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1389
Issue Time: 2025 Jan 06 1651 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 06 1621 UTC
Estimated Velocity: 445 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.

14:42 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3410
Issue Time: 2025 Jan 06 1442 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025 Jan 06 1430 UTC
Station: GOES-16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

05:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2514
Issue Time: 2025 Jan 06 0559 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 06 0558 UTC
Synoptic Period: 0300-0600 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.

05:03 UTC

Space Weather Message Code: WARK04
Serial Number: 4797
Issue Time: 2025 Jan 06 0503 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jan 06 0503 UTC
Valid To: 2025 Jan 06 1200 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.

неділя, 5 січня 2025

22:22 UTC

Space Weather Message Code: SUMPX1
Serial Number: 120
Issue Time: 2025 Jan 05 2222 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2025 Jan 04 2235 UTC
Maximum Time: 2025 Jan 05 0055 UTC
End Time: 2025 Jan 05 0940 UTC
Maximum 10MeV Flux: 20 pfu
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

17:38 UTC

Space Weather Message Code: WATA20
Serial Number: 1023
Issue Time: 2025 Jan 05 1738 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jan 06: G1 (Minor) Jan 07: None (Below G1) Jan 08: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: Two CMEs that originated from or near AR 3939 left the Sun on 04 Jan. Modeling of these events suggest a glancing blow to Earth is possible by late on 06 Jan.

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.

11:55 UTC

Space Weather Message Code: WARPX1
Serial Number: 592
Issue Time: 2025 Jan 05 1155 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 591
Valid From: 2025 Jan 04 2140 UTC
Now Valid Until: 2025 Jan 05 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

11:48 UTC

Space Weather Message Code: WARK04
Serial Number: 4796
Issue Time: 2025 Jan 05 1148 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4795
Valid From: 2025 Jan 04 0244 UTC
Now Valid Until: 2025 Jan 05 2359 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.

субота, 4 січня 2025

22:52 UTC

Space Weather Message Code: ALTPX1
Serial Number: 355
Issue Time: 2025 Jan 04 2252 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2025 Jan 04 2235 UTC
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

22:13 UTC

Space Weather Message Code: WARK05
Serial Number: 1966
Issue Time: 2025 Jan 04 2213 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1965
Valid From: 2025 Jan 04 0525 UTC
Now Valid Until: 2025 Jan 05 1200 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 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.

22:13 UTC

Space Weather Message Code: WARK04
Serial Number: 4795
Issue Time: 2025 Jan 04 2213 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4794
Valid From: 2025 Jan 04 0244 UTC
Now Valid Until: 2025 Jan 05 1200 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.

21:43 UTC

Space Weather Message Code: WARPX1
Serial Number: 591
Issue Time: 2025 Jan 04 2143 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2025 Jan 04 2140 UTC
Valid To: 2025 Jan 05 1200 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

19:47 UTC

Space Weather Message Code: ALTK05
Serial Number: 1692
Issue Time: 2025 Jan 04 1947 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Jan 04 1940 UTC
Synoptic Period: 1800-2100 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.

18:07 UTC

Space Weather Message Code: ALTK05
Serial Number: 1691
Issue Time: 2025 Jan 04 1807 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Jan 04 1759 UTC
Synoptic Period: 1800-2100 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.

17:04 UTC

Space Weather Message Code: ALTTP4
Serial Number: 675
Issue Time: 2025 Jan 04 1704 UTC

ALERT: Type IV Radio Emission
Begin Time: 2025 Jan 04 1444 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.

14:22 UTC

Space Weather Message Code: WARK05
Serial Number: 1965
Issue Time: 2025 Jan 04 1422 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1964
Valid From: 2025 Jan 04 0525 UTC
Now Valid Until: 2025 Jan 04 2359 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 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.

13:31 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1388
Issue Time: 2025 Jan 04 1331 UTC

ALERT: Type II Radio Emission
Begin Time: 2025 Jan 04 1252 UTC
Estimated Velocity: 314 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.

13:01 UTC

Space Weather Message Code: SUMX01
Serial Number: 188
Issue Time: 2025 Jan 04 1301 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2025 Jan 04 1234 UTC
Maximum Time: 2025 Jan 04 1248 UTC
End Time: 2025 Jan 04 1256 UTC
X-ray Class: X1.8
Location: N13E47
NOAA Scale: R3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

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.

12:45 UTC

Space Weather Message Code: ALTXMF
Serial Number: 467
Issue Time: 2025 Jan 04 1245 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Jan 04 1243 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.

08:18 UTC

Space Weather Message Code: WARK06
Serial Number: 559
Issue Time: 2025 Jan 04 0818 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025 Jan 04 0818 UTC
Valid To: 2025 Jan 04 1200 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

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.

07:54 UTC

Space Weather Message Code: ALTK05
Serial Number: 1690
Issue Time: 2025 Jan 04 0754 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Jan 04 0749 UTC
Synoptic Period: 0600-0900 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.

05:50 UTC

Space Weather Message Code: ALTK05
Serial Number: 1689
Issue Time: 2025 Jan 04 0550 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025 Jan 04 0547 UTC
Synoptic Period: 0300-0600 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.

05:34 UTC

Space Weather Message Code: SUMXM5
Serial Number: 279
Issue Time: 2025 Jan 04 0534 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2025 Jan 04 0458 UTC
Maximum Time: 2025 Jan 04 0518 UTC
End Time: 2025 Jan 04 0527 UTC
X-ray Class: M7.6
Location: N13E47
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.

05:23 UTC

Space Weather Message Code: WARK05
Serial Number: 1964
Issue Time: 2025 Jan 04 0523 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025 Jan 04 0525 UTC
Valid To: 2025 Jan 04 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.

05:15 UTC

Space Weather Message Code: ALTXMF
Serial Number: 466
Issue Time: 2025 Jan 04 0515 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2025 Jan 04 0514 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.

05:14 UTC

Space Weather Message Code: ALTK04
Serial Number: 2513
Issue Time: 2025 Jan 04 0514 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025 Jan 04 0509 UTC
Synoptic Period: 0300-0600 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.