K0DID Space Weather

NASA | Space Weather Alerts

MSG 0 - Date: 2025-12-08 12:37:54.203 Space Weather Message Code: ALTEF3 Serial Number: 3574 Issue Time: 2025 Dec 08 1237 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3573 Begin Time: 2025 Dec 05 1530 UTC Yesterday Maximum 2MeV Flux: 1453 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 1 - Date: 2025-12-08 05:13:17.290 Space Weather Message Code: SUMX01 Serial Number: 204 Issue Time: 2025 Dec 08 0513 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2025 Dec 08 0449 UTC Maximum Time: 2025 Dec 08 0501 UTC End Time: 2025 Dec 08 0504 UTC X-ray Class: X1.1 Location: S18W55 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 2 - Date: 2025-12-08 05:02:42.307 Space Weather Message Code: ALTXMF Serial Number: 505 Issue Time: 2025 Dec 08 0502 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Dec 08 0500 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 3 - Date: 2025-12-08 00:46:37.263 Space Weather Message Code: ALTTP2 Serial Number: 1452 Issue Time: 2025 Dec 08 0046 UTC ALERT: Type II Radio Emission Begin Time: 2025 Dec 08 0017 UTC Estimated Velocity: 317 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 4 - Date: 2025-12-07 21:39:36.970 Space Weather Message Code: ALTEF3 Serial Number: 3573 Issue Time: 2025 Dec 07 2139 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3572 Begin Time: 2025 Dec 05 1530 UTC Yesterday Maximum 2MeV Flux: 2135 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 5 - Date: 2025-12-07 06:01:41.390 Space Weather Message Code: ALTK04 Serial Number: 2614 Issue Time: 2025 Dec 07 0601 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Dec 07 0559 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 6 - Date: 2025-12-07 04:43:00.190 Space Weather Message Code: WATA50 Serial Number: 94 Issue Time: 2025 Dec 07 0443 UTC WATCH: Geomagnetic Storm Category G3 Predicted Highest Storm Level Predicted by Day: Dec 08: G1 (Minor) Dec 09: G3 (Strong) Dec 10: G1 (Minor) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment: Watches for G3 (Strong) on 09 Dec and G1 (Minor) on 10 Dec are in anticipation of CME arrival from the M8 flare at 06/2039 UTC. NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude. Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices. Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur. Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur. Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 7 - Date: 2025-12-07 04:23:19.650 Space Weather Message Code: WARK04 Serial Number: 5176 Issue Time: 2025 Dec 07 0423 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2025 Dec 07 0422 UTC Valid To: 2025 Dec 07 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 8 - Date: 2025-12-06 21:07:43.110 Space Weather Message Code: ALTTP4 Serial Number: 698 Issue Time: 2025 Dec 06 2107 UTC ALERT: Type IV Radio Emission Begin Time: 2025 Dec 06 2057 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 9 - Date: 2025-12-06 20:57:30.080 Space Weather Message Code: SUMXM5 Serial Number: 301 Issue Time: 2025 Dec 06 2057 UTC SUMMARY: X-ray Event exceeded M5 Begin Time: 2025 Dec 06 2029 UTC Maximum Time: 2025 Dec 06 2039 UTC End Time: 2025 Dec 06 2049 UTC X-ray Class: M8.1 Optical Class: 2b Location: N20E01 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 10 - Date: 2025-12-06 20:54:09.173 Space Weather Message Code: SUM10R Serial Number: 892 Issue Time: 2025 Dec 06 2054 UTC SUMMARY: 10cm Radio Burst Begin Time: 2025 Dec 06 2035 UTC Maximum Time: 2025 Dec 06 2036 UTC End Time: 2025 Dec 06 2039 UTC Duration: 4 minutes Peak Flux: 1100 sfu Latest Penticton Noon Flux: 200 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 11 - Date: 2025-12-06 20:51:38.973 Space Weather Message Code: ALTTP2 Serial Number: 1451 Issue Time: 2025 Dec 06 2051 UTC ALERT: Type II Radio Emission Begin Time: 2025 Dec 06 2040 UTC Estimated Velocity: 1143 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 12 - Date: 2025-12-06 20:41:32.950 Space Weather Message Code: ALTXMF Serial Number: 504 Issue Time: 2025 Dec 06 2041 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Dec 06 2037 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 13 - Date: 2025-12-06 12:34:29.527 Space Weather Message Code: ALTEF3 Serial Number: 3572 Issue Time: 2025 Dec 06 1234 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3571 Begin Time: 2025 Dec 05 1530 UTC Yesterday Maximum 2MeV Flux: 1426 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 14 - Date: 2025-12-06 08:52:21.887 Space Weather Message Code: WARK04 Serial Number: 5175 Issue Time: 2025 Dec 06 0852 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5174 Valid From: 2025 Dec 06 0205 UTC Now Valid Until: 2025 Dec 06 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 15 - Date: 2025-12-06 08:37:21.287 Space Weather Message Code: WARK05 Serial Number: 2148 Issue Time: 2025 Dec 06 0837 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2025 Dec 06 0836 UTC Valid To: 2025 Dec 06 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 16 - Date: 2025-12-06 02:58:26.857 Space Weather Message Code: ALTK04 Serial Number: 2613 Issue Time: 2025 Dec 06 0258 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Dec 06 0256 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 17 - Date: 2025-12-06 02:06:29.027 Space Weather Message Code: WARK04 Serial Number: 5174 Issue Time: 2025 Dec 06 0206 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2025 Dec 06 0205 UTC Valid To: 2025 Dec 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 18 - Date: 2025-12-05 19:22:12.843 Space Weather Message Code: WATA20 Serial Number: 1080 Issue Time: 2025 Dec 05 1922 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Dec 06: None (Below G1) Dec 07: G1 (Minor) Dec 08: 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 19 - Date: 2025-12-05 15:45:20.160 Space Weather Message Code: ALTEF3 Serial Number: 3571 Issue Time: 2025 Dec 05 1545 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Dec 05 1530 UTC Station: GOES-19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 20 - Date: 2025-12-04 21:29:37.763 Space Weather Message Code: WATA20 Serial Number: 1079 Issue Time: 2025 Dec 04 2129 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Dec 05: None (Below G1) Dec 06: None (Below G1) Dec 07: 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 21 - Date: 2025-12-04 13:21:31.490 Space Weather Message Code: WARK04 Serial Number: 5173 Issue Time: 2025 Dec 04 1321 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5172 Valid From: 2025 Dec 03 1022 UTC Now Valid Until: 2025 Dec 05 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 22 - Date: 2025-12-04 11:58:26.143 Space Weather Message Code: WARK05 Serial Number: 2147 Issue Time: 2025 Dec 04 1158 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2146 Valid From: 2025 Dec 03 1425 UTC Now Valid Until: 2025 Dec 05 0000 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 23 - Date: 2025-12-04 09:00:55.800 Space Weather Message Code: ALTTP4 Serial Number: 697 Issue Time: 2025 Dec 04 0900 UTC ALERT: Type IV Radio Emission Begin Time: 2025 Dec 04 0832 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 24 - Date: 2025-12-04 08:55:33.757 Space Weather Message Code: ALTK05 Serial Number: 1925 Issue Time: 2025 Dec 04 0855 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 04 0852 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 25 - Date: 2025-12-04 04:53:02.540 Space Weather Message Code: ALTK05 Serial Number: 1924 Issue Time: 2025 Dec 04 0453 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 04 0445 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. -------------------------------------------------------------------------------------------------------------------------------------------

NASA | 27 Day Radio Flux A Index and K Index Forecast

NASA Released: 2025 Dec 08 0210 UTC
Date UTC	Radio Flux 107 cm	Planetary A Index	Largest Kp Index
• 2025 Dec 08	190	18	5
2025 Dec 09	190	70	7
2025 Dec 10	185	33	5
2025 Dec 11	175	10	3
2025 Dec 12	155	5	2
2025 Dec 13	140	12	4
2025 Dec 14	130	12	4
2025 Dec 15	130	8	3
2025 Dec 16	135	5	2
2025 Dec 17	135	8	3
2025 Dec 18	140	10	3
2025 Dec 19	140	8	3
2025 Dec 20	140	8	3
2025 Dec 21	140	15	5
2025 Dec 22	140	20	5
2025 Dec 23	145	20	5
2025 Dec 24	160	25	5
2025 Dec 25	170	20	5
2025 Dec 26	180	20	5
2025 Dec 27	180	15	4
2025 Dec 28	180	10	3
2025 Dec 29	175	8	3
2025 Dec 30	180	30	6
2025 Dec 31	180	25	5
2026	Jan 01	175	10
2026	Jan 02	170	10
2026	Jan 03	170	8

SDO | Solar Dynamics Observator Images

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Ham QSL Data

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NASA | SWPC