K0DID Space Weather

NASA | Space Weather Alerts

MSG 0 - Date: 2025-12-04 03:08:15.610 Space Weather Message Code: SUMXM5 Serial Number: 300 Issue Time: 2025 Dec 04 0308 UTC SUMMARY: X-ray Event exceeded M5 Begin Time: 2025 Dec 04 0236 UTC Maximum Time: 2025 Dec 04 0250 UTC End Time: 2025 Dec 04 0259 UTC X-ray Class: M6.0 Optical Class: na Location: N07E50 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 1 - Date: 2025-12-04 03:03:55.553 Space Weather Message Code: ALTTP2 Serial Number: 1450 Issue Time: 2025 Dec 04 0303 UTC ALERT: Type II Radio Emission Begin Time: 2025 Dec 04 0246 UTC Estimated Velocity: 345 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 2 - Date: 2025-12-04 02:53:00.797 Space Weather Message Code: ALTK05 Serial Number: 1923 Issue Time: 2025 Dec 04 0253 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 04 0247 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 3 - Date: 2025-12-04 02:50:48.363 Space Weather Message Code: ALTXMF Serial Number: 503 Issue Time: 2025 Dec 04 0250 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Dec 04 0248 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 4 - Date: 2025-12-03 23:56:23.500 Space Weather Message Code: WARK05 Serial Number: 2146 Issue Time: 2025 Dec 03 2356 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2145 Valid From: 2025 Dec 03 1425 UTC Now Valid Until: 2025 Dec 04 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 5 - Date: 2025-12-03 23:55:43.887 Space Weather Message Code: WARK04 Serial Number: 5172 Issue Time: 2025 Dec 03 2355 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5171 Valid From: 2025 Dec 03 1022 UTC Now Valid Until: 2025 Dec 04 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 6 - Date: 2025-12-03 22:38:06.460 Space Weather Message Code: ALTK05 Serial Number: 1922 Issue Time: 2025 Dec 03 2238 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 03 2215 UTC Synoptic Period: 2100-2400 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 7 - Date: 2025-12-03 20:48:32.057 Space Weather Message Code: ALTK07 Serial Number: 200 Issue Time: 2025 Dec 03 2048 UTC ALERT: Geomagnetic K-index of 7 Threshold Reached: 2025 Dec 03 2031 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes NOAA Scale: G3 - Strong 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 8 - Date: 2025-12-03 20:27:18.730 Space Weather Message Code: WARK07 Serial Number: 139 Issue Time: 2025 Dec 03 2027 UTC WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2025 Dec 03 2025 UTC Valid To: 2025 Dec 03 2359 UTC Warning Condition: Onset NOAA Scale: G3 or greater 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 9 - Date: 2025-12-03 19:58:49.803 Space Weather Message Code: ALTK06 Serial Number: 677 Issue Time: 2025 Dec 03 1958 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2025 Dec 03 1959 UTC Synoptic Period: 1800-2100 UTC Active Warning: Yes 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 10 - Date: 2025-12-03 19:53:38.437 Space Weather Message Code: WARK06 Serial Number: 627 Issue Time: 2025 Dec 03 1953 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2025 Dec 03 1952 UTC Valid To: 2025 Dec 03 2359 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 11 - Date: 2025-12-03 19:41:44.263 Space Weather Message Code: ALTK05 Serial Number: 1921 Issue Time: 2025 Dec 03 1941 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 03 1941 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 12 - Date: 2025-12-03 14:52:03.337 Space Weather Message Code: ALTK05 Serial Number: 1920 Issue Time: 2025 Dec 03 1452 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Dec 03 1443 UTC Synoptic Period: 1200-1500 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 13 - Date: 2025-12-03 14:25:18.053 Space Weather Message Code: WARK05 Serial Number: 2145 Issue Time: 2025 Dec 03 1425 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2025 Dec 03 1425 UTC Valid To: 2025 Dec 04 0000 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 14 - Date: 2025-12-03 14:23:34.797 Space Weather Message Code: ALTK04 Serial Number: 2612 Issue Time: 2025 Dec 03 1423 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Dec 03 1419 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 15 - Date: 2025-12-03 10:22:41.830 Space Weather Message Code: WARK04 Serial Number: 5171 Issue Time: 2025 Dec 03 1022 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2025 Dec 03 1022 UTC Valid To: 2025 Dec 03 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 16 - Date: 2025-12-03 07:06:26.573 Space Weather Message Code: ALTEF3 Serial Number: 3570 Issue Time: 2025 Dec 03 0706 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3569 Begin Time: 2025 Nov 25 1450 UTC Yesterday Maximum 2MeV Flux: 8535 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 17 - Date: 2025-12-02 05:01:21.543 Space Weather Message Code: ALTEF3 Serial Number: 3569 Issue Time: 2025 Dec 02 0501 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3568 Begin Time: 2025 Nov 25 1450 UTC Yesterday Maximum 2MeV Flux: 8521 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 18 - Date: 2025-12-01 21:19:23.350 Space Weather Message Code: WATA30 Serial Number: 262 Issue Time: 2025 Dec 01 2119 UTC WATCH: Geomagnetic Storm Category G2 Predicted Highest Storm Level Predicted by Day: Dec 02: None (Below G1) Dec 03: G2 (Moderate) Dec 04: G2 (Moderate) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment: There is a chance geomagnetic storming could reach G3 (Moderate) levels late 03 Dec, into early 04 Dec. 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 19 - Date: 2025-12-01 04:59:40.367 Space Weather Message Code: ALTEF3 Serial Number: 3568 Issue Time: 2025 Dec 01 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3567 Begin Time: 2025 Nov 25 1450 UTC Yesterday Maximum 2MeV Flux: 8310 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 20 - Date: 2025-12-01 04:03:30.217 Space Weather Message Code: ALTTP2 Serial Number: 1449 Issue Time: 2025 Dec 01 0403 UTC ALERT: Type II Radio Emission Begin Time: 2025 Dec 01 0319 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 21 - Date: 2025-12-01 03:14:38.780 Space Weather Message Code: SUMX01 Serial Number: 203 Issue Time: 2025 Dec 01 0314 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2025 Dec 01 0227 UTC Maximum Time: 2025 Dec 01 0249 UTC End Time: 2025 Dec 01 0305 UTC X-ray Class: X1.9 Location: N22E85 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 22 - Date: 2025-12-01 02:56:13.763 Space Weather Message Code: ALTTP2 Serial Number: 1448 Issue Time: 2025 Dec 01 0256 UTC ALERT: Type II Radio Emission Begin Time: 2025 Dec 01 0243 UTC Estimated Velocity: 988 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 23 - Date: 2025-12-01 02:41:43.130 Space Weather Message Code: ALTXMF Serial Number: 502 Issue Time: 2025 Dec 01 0241 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2025 Dec 01 0240 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 24 - Date: 2025-12-01 01:01:16.247 Space Weather Message Code: ALTK04 Serial Number: 2611 Issue Time: 2025 Dec 01 0101 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Dec 01 0100 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 25 - Date: 2025-12-01 00:54:50.463 Space Weather Message Code: WARK04 Serial Number: 5170 Issue Time: 2025 Dec 01 0054 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2025 Dec 01 0053 UTC Valid To: 2025 Dec 01 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. -------------------------------------------------------------------------------------------------------------------------------------------

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

NASA Released: 2025 Dec 01 0212 UTC
Date UTC	Radio Flux 107 cm	Planetary A Index	Largest Kp Index
• 2025 Dec 03	190	15	4
2025 Dec 04	190	25	5
2025 Dec 05	190	30	5
2025 Dec 06	190	12	4
2025 Dec 07	190	10	3
2025 Dec 08	190	8	3
2025 Dec 09	190	5	2
2025 Dec 10	185	5	2
2025 Dec 11	180	5	2
2025 Dec 12	180	8	3
2025 Dec 13	175	18	5
2025 Dec 14	175	12	4
2025 Dec 15	180	8	3
2025 Dec 16	180	5	2
2025 Dec 17	180	8	3
2025 Dec 18	180	10	3
2025 Dec 19	180	8	3
2025 Dec 20	175	8	3
2025 Dec 21	175	15	4
2025 Dec 22	175	20	5
2025 Dec 23	180	20	5
2025 Dec 24	190	25	5
2025 Dec 25	195	20	5
2025 Dec 26	195	20	5
2025 Dec 27	195	15	4

SDO | Solar Dynamics Observator Images

---

Ham QSL Data

---

NASA | SWPC