K0DID Space Weather

NASA | Space Weather Alerts

MSG 0 - Date: 2026-04-05 05:07:42.053 Space Weather Message Code: ALTEF3 Serial Number: 3666 Issue Time: 2026 Apr 05 0507 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3665 Begin Time: 2026 Apr 03 0920 UTC Yesterday Maximum 2MeV Flux: 2419 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 1 - Date: 2026-04-05 02:48:33.723 Space Weather Message Code: WARK04 Serial Number: 5312 Issue Time: 2026 Apr 05 0248 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5311 Valid From: 2026 Apr 02 0047 UTC Now Valid Until: 2026 Apr 05 0900 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: 2026-04-04 23:56:54.047 Space Weather Message Code: WARK04 Serial Number: 5311 Issue Time: 2026 Apr 04 2356 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5310 Valid From: 2026 Apr 02 0047 UTC Now Valid Until: 2026 Apr 05 0300 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 3 - Date: 2026-04-04 11:58:02.247 Space Weather Message Code: ALTEF3 Serial Number: 3665 Issue Time: 2026 Apr 04 1158 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3664 Begin Time: 2026 Apr 03 0920 UTC Yesterday Maximum 2MeV Flux: 4465 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 4 - Date: 2026-04-04 02:54:27.627 Space Weather Message Code: ALTK05 Serial Number: 2006 Issue Time: 2026 Apr 04 0254 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 04 0248 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 5 - Date: 2026-04-04 01:46:30.047 Space Weather Message Code: SUMXM5 Serial Number: 312 Issue Time: 2026 Apr 04 0146 UTC SUMMARY: X-ray Event exceeded M5 Begin Time: 2026 Apr 04 0107 UTC Maximum Time: 2026 Apr 04 0117 UTC End Time: 2026 Apr 04 0123 UTC X-ray Class: M7.5 Location: N04W04 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 6 - Date: 2026-04-04 01:17:22.690 Space Weather Message Code: ALTXMF Serial Number: 522 Issue Time: 2026 Apr 04 0117 UTC ALERT: X-Ray Flux exceeded M5 Threshold Reached: 2026 Apr 04 0117 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 7 - Date: 2026-04-03 23:10:11.837 Space Weather Message Code: WARK06 Serial Number: 653 Issue Time: 2026 Apr 03 2310 UTC EXTENDED WARNING: Geomagnetic K-Index of 6 expected Extension to Serial Number: 652 Valid From: 2026 Apr 03 1551 UTC Now Valid Until: 2026 Apr 04 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 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 8 - Date: 2026-04-03 23:10:11.817 Space Weather Message Code: ALTK06 Serial Number: 712 Issue Time: 2026 Apr 03 2310 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2026 Apr 03 2303 UTC Synoptic Period: 2100-2400 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 9 - Date: 2026-04-03 21:41:04.000 Space Weather Message Code: ALTK05 Serial Number: 2005 Issue Time: 2026 Apr 03 2141 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 03 2140 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 10 - Date: 2026-04-03 21:02:39.527 Space Weather Message Code: WARK04 Serial Number: 5310 Issue Time: 2026 Apr 03 2102 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5309 Valid From: 2026 Apr 02 0047 UTC Now Valid Until: 2026 Apr 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 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 11 - Date: 2026-04-03 21:01:33.987 Space Weather Message Code: ALTK06 Serial Number: 711 Issue Time: 2026 Apr 03 2101 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2026 Apr 03 2059 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 12 - Date: 2026-04-03 21:01:33.963 Space Weather Message Code: WARK05 Serial Number: 2222 Issue Time: 2026 Apr 03 2101 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2221 Valid From: 2026 Apr 02 0230 UTC Now Valid Until: 2026 Apr 04 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 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: 2026-04-03 19:08:43.663 Space Weather Message Code: ALTK05 Serial Number: 2004 Issue Time: 2026 Apr 03 1908 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 03 1906 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 14 - Date: 2026-04-03 16:47:26.220 Space Weather Message Code: ALTK07 Serial Number: 216 Issue Time: 2026 Apr 03 1647 UTC ALERT: Geomagnetic K-index of 7 Threshold Reached: 2026 Apr 03 1646 UTC Synoptic Period: 1500-1800 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 15 - Date: 2026-04-03 16:25:08.373 Space Weather Message Code: WARK07 Serial Number: 148 Issue Time: 2026 Apr 03 1625 UTC WARNING: Geomagnetic K-index of 7 or greater expected Valid From: 2026 Apr 03 1625 UTC Valid To: 2026 Apr 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 16 - Date: 2026-04-03 15:55:55.093 Space Weather Message Code: ALTK06 Serial Number: 710 Issue Time: 2026 Apr 03 1555 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2026 Apr 03 1555 UTC Synoptic Period: 1500-1800 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 17 - Date: 2026-04-03 15:52:05.490 Space Weather Message Code: WARK06 Serial Number: 652 Issue Time: 2026 Apr 03 1552 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2026 Apr 03 1551 UTC Valid To: 2026 Apr 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 18 - Date: 2026-04-03 15:45:12.670 Space Weather Message Code: SUMSUD Serial Number: 298 Issue Time: 2026 Apr 03 1545 UTC SUMMARY: Geomagnetic Sudden Impulse Observed: 2026 Apr 03 1529 UTC Deviation: 72 nT Station: HAD NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation ------------------------------------------------------------------------------------------------------------------------------------------- MSG 19 - Date: 2026-04-03 15:42:14.950 Space Weather Message Code: ALTK05 Serial Number: 2003 Issue Time: 2026 Apr 03 1542 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 03 1535 UTC Synoptic Period: 1500-1800 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 20 - Date: 2026-04-03 15:29:23.420 Space Weather Message Code: WARSUD Serial Number: 253 Issue Time: 2026 Apr 03 1529 UTC WARNING: Geomagnetic Sudden Impulse expected Valid From: 2026 Apr 03 1529 UTC Valid To: 2026 Apr 03 1550 UTC IP Shock Passage Observed: 2026 Apr 03 1503 UTC NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation ------------------------------------------------------------------------------------------------------------------------------------------- MSG 21 - Date: 2026-04-03 14:51:54.773 Space Weather Message Code: WARK05 Serial Number: 2221 Issue Time: 2026 Apr 03 1451 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2220 Valid From: 2026 Apr 02 0230 UTC Now Valid Until: 2026 Apr 03 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 22 - Date: 2026-04-03 09:36:25.380 Space Weather Message Code: ALTEF3 Serial Number: 3664 Issue Time: 2026 Apr 03 0936 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2026 Apr 03 0920 UTC Station: GOES19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 23 - Date: 2026-04-03 08:31:35.720 Space Weather Message Code: ALTK05 Serial Number: 2002 Issue Time: 2026 Apr 03 0831 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 03 0830 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 24 - Date: 2026-04-02 20:52:06.767 Space Weather Message Code: ALTK05 Serial Number: 2001 Issue Time: 2026 Apr 02 2052 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Apr 02 2052 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 25 - Date: 2026-04-02 17:43:18.647 Space Weather Message Code: WATA30 Serial Number: 270 Issue Time: 2026 Apr 02 1743 UTC WATCH: Geomagnetic Storm Category G2 Predicted Highest Storm Level Predicted by Day: Apr 02: G2 (Moderate) Apr 03: G2 (Moderate) Apr 04: G2 (Moderate) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio - HF (high frequency) radio propagation can fade at higher latitudes. Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state. -------------------------------------------------------------------------------------------------------------------------------------------

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

NASA Released: 2026 Mar 30 0230 UTC
Date UTC	Radio Flux 107 cm	Planetary A Index	Largest Kp Index
• 2026 Apr 05	145	10	3
2026 Apr 06	135	15	4
2026 Apr 07	125	8	3
2026 Apr 08	118	7	2
2026 Apr 09	120	25	5
2026 Apr 10	110	40	6
2026 Apr 11	112	20	5
2026 Apr 12	115	12	4
2026 Apr 13	115	8	3
2026 Apr 14	110	7	2
2026 Apr 15	115	5	2
2026 Apr 16	115	4	2
2026 Apr 17	120	7	2
2026 Apr 18	122	48	6
2026 Apr 19	124	22	5
2026 Apr 20	130	12	4
2026 Apr 21	140	12	4
2026 Apr 22	150	8	3
2026 Apr 23	155	5	2
2026 Apr 24	160	8	3
2026 Apr 25	155	15	4

SDO | Solar Dynamics Observator Images

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Ham QSL Data

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NASA | SWPC