K0DID Space Weather

NASA | Space Weather Alerts

MSG 0 - Date: 2025-09-18 04:59:30.380 Space Weather Message Code: ALTEF3 Serial Number: 3527 Issue Time: 2025 Sep 18 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3526 Begin Time: 2025 Sep 16 1100 UTC Yesterday Maximum 2MeV Flux: 4335 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 1 - Date: 2025-09-17 14:55:56.010 Space Weather Message Code: WARK04 Serial Number: 5083 Issue Time: 2025 Sep 17 1455 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5082 Valid From: 2025 Sep 14 2015 UTC Now Valid Until: 2025 Sep 14 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 2 - Date: 2025-09-17 04:59:33.880 Space Weather Message Code: ALTEF3 Serial Number: 3526 Issue Time: 2025 Sep 17 0459 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3525 Begin Time: 2025 Sep 16 1100 UTC Yesterday Maximum 2MeV Flux: 3347 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 3 - Date: 2025-09-16 20:40:43.920 Space Weather Message Code: WARK04 Serial Number: 5082 Issue Time: 2025 Sep 16 2040 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5081 Valid From: 2025 Sep 14 2015 UTC Now Valid Until: 2025 Sep 17 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 4 - Date: 2025-09-16 11:55:00.780 Space Weather Message Code: WARK04 Serial Number: 5081 Issue Time: 2025 Sep 16 1155 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5080 Valid From: 2025 Sep 14 2015 UTC Now Valid Until: 2025 Sep 16 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 5 - Date: 2025-09-16 11:20:01.957 Space Weather Message Code: ALTEF3 Serial Number: 3525 Issue Time: 2025 Sep 16 1120 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Sep 16 1100 UTC Station: GOES19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 6 - Date: 2025-09-16 02:39:56.387 Space Weather Message Code: ALTK05 Serial Number: 1853 Issue Time: 2025 Sep 16 0239 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 16 0235 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 7 - Date: 2025-09-15 22:41:24.737 Space Weather Message Code: WARK04 Serial Number: 5080 Issue Time: 2025 Sep 15 2241 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5079 Valid From: 2025 Sep 14 2015 UTC Now Valid Until: 2025 Sep 16 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 8 - Date: 2025-09-15 22:05:34.097 Space Weather Message Code: WARK05 Serial Number: 2102 Issue Time: 2025 Sep 15 2205 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2101 Valid From: 2025 Sep 14 2330 UTC Now Valid Until: 2025 Sep 16 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 9 - Date: 2025-09-15 20:58:36.527 Space Weather Message Code: WATA20 Serial Number: 1064 Issue Time: 2025 Sep 15 2058 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Sep 16: G1 (Minor) Sep 17: None (Below G1) Sep 18: 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 10 - Date: 2025-09-15 14:49:16.033 Space Weather Message Code: WARK06 Serial Number: 605 Issue Time: 2025 Sep 15 1449 UTC EXTENDED WARNING: Geomagnetic K-Index of 6 expected Extension to Serial Number: 604 Valid From: 2025 Sep 15 0055 UTC Now Valid Until: 2025 Sep 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 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: 2025-09-15 14:49:16.017 Space Weather Message Code: WARK05 Serial Number: 2101 Issue Time: 2025 Sep 15 1449 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2100 Valid From: 2025 Sep 14 2330 UTC Now Valid Until: 2025 Sep 15 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 12 - Date: 2025-09-15 12:56:18.210 Space Weather Message Code: ALTK05 Serial Number: 1852 Issue Time: 2025 Sep 15 1256 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 15 1256 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: 2025-09-15 11:59:09.357 Space Weather Message Code: ALTK05 Serial Number: 1851 Issue Time: 2025 Sep 15 1159 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 15 1159 UTC Synoptic Period: 0900-1200 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 14 - Date: 2025-09-15 08:54:15.857 Space Weather Message Code: WARK04 Serial Number: 5079 Issue Time: 2025 Sep 15 0854 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5078 Valid From: 2025 Sep 14 2015 UTC Now Valid Until: 2025 Sep 15 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: 2025-09-15 08:54:15.857 Space Weather Message Code: WARK06 Serial Number: 604 Issue Time: 2025 Sep 15 0854 UTC EXTENDED WARNING: Geomagnetic K-Index of 6 expected Extension to Serial Number: 603 Valid From: 2025 Sep 15 0055 UTC Now Valid Until: 2025 Sep 15 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 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 16 - Date: 2025-09-15 08:54:15.840 Space Weather Message Code: WARK05 Serial Number: 2100 Issue Time: 2025 Sep 15 0854 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2099 Valid From: 2025 Sep 14 2330 UTC Now Valid Until: 2025 Sep 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 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 17 - Date: 2025-09-15 08:06:42.703 Space Weather Message Code: ALTK05 Serial Number: 1850 Issue Time: 2025 Sep 15 0806 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 15 0805 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 18 - Date: 2025-09-15 03:32:01.383 Space Weather Message Code: ALTK05 Serial Number: 1849 Issue Time: 2025 Sep 15 0332 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 15 0326 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 19 - Date: 2025-09-15 02:59:45.833 Space Weather Message Code: ALTK07 Serial Number: 190 Issue Time: 2025 Sep 15 0259 UTC ALERT: Geomagnetic K-index of 7 Threshold Reached: 2025 Sep 15 0259 UTC Synoptic Period: 0000-0300 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 20 - Date: 2025-09-15 02:55:00.577 Space Weather Message Code: WARK07 Serial Number: 132 Issue Time: 2025 Sep 15 0255 UTC WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2025 Sep 15 0254 UTC Valid To: 2025 Sep 15 0900 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 21 - Date: 2025-09-15 02:10:30.270 Space Weather Message Code: ALTK06 Serial Number: 654 Issue Time: 2025 Sep 15 0210 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2025 Sep 15 0207 UTC Synoptic Period: 0000-0300 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 22 - Date: 2025-09-15 00:55:39.637 Space Weather Message Code: WARK06 Serial Number: 603 Issue Time: 2025 Sep 15 0055 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2025 Sep 15 0055 UTC Valid To: 2025 Sep 15 0900 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 23 - Date: 2025-09-14 23:47:13.513 Space Weather Message Code: ALTK05 Serial Number: 1848 Issue Time: 2025 Sep 14 2347 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Sep 14 2341 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 24 - Date: 2025-09-14 23:29:41.690 Space Weather Message Code: WARK05 Serial Number: 2099 Issue Time: 2025 Sep 14 2329 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2025 Sep 14 2330 UTC Valid To: 2025 Sep 15 0900 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 25 - Date: 2025-09-14 23:22:03.400 Space Weather Message Code: ALTK04 Serial Number: 2591 Issue Time: 2025 Sep 14 2322 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Sep 14 2311 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. -------------------------------------------------------------------------------------------------------------------------------------------

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

NASA Released: 2025 Sep 15 0137 UTC
Date UTC	Radio Flux 107 cm	Planetary A Index	Largest Kp Index
• 2025 Sep 18	130	5	2
2025 Sep 19	135	5	2
2025 Sep 20	135	5	2
2025 Sep 21	135	5	2
2025 Sep 22	135	5	2
2025 Sep 23	130	5	2
2025 Sep 24	125	5	2
2025 Sep 25	130	5	2
2025 Sep 26	125	5	2
2025 Sep 27	125	5	2
2025 Sep 28	130	12	4
2025 Sep 29	130	15	5
2025 Sep 30	125	8	3
2025 Oct 01	120	5	2
2025 Oct 02	115	5	2
2025 Oct 03	115	15	5
2025 Oct 04	110	12	4
2025 Oct 05	110	12	4
2025 Oct 06	115	15	5
2025 Oct 07	115	12	4
2025 Oct 08	110	8	3
2025 Oct 09	115	8	3
2025 Oct 10	115	5	2
2025 Oct 11	120	15	5

SDO | Solar Dynamics Observator Images

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Ham QSL Data

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NASA | SWPC