K0DID Space Weather

NASA | Space Weather Alerts

MSG 0 - Date: 2025-08-18 18:39:01.597 Space Weather Message Code: WATA20 Serial Number: 1056 Issue Time: 2025 Aug 18 1839 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Aug 19: G1 (Minor) Aug 20: G1 (Minor) Aug 21: None (Below G1) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment: Isolated periods of G1 (Minor) geomagnetic storming are likely 19 August due to recurrent, negative polarity CH HSS effects. Isolated periods of G1 (Minor) geomagnetic storming are likely again on 20 August with continued CH HSS effects coupled with the possibility of glancing influences from a CME that left the Sun on 17 August. 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 1 - Date: 2025-08-18 06:22:08.563 Space Weather Message Code: ALTEF3 Serial Number: 3518 Issue Time: 2025 Aug 18 0622 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3517 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 8023 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 2 - Date: 2025-08-17 08:27:04.330 Space Weather Message Code: ALTEF3 Serial Number: 3517 Issue Time: 2025 Aug 17 0827 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3516 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 9366 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 3 - Date: 2025-08-16 16:01:53.777 Space Weather Message Code: WATA20 Serial Number: 1055 Issue Time: 2025 Aug 16 1601 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Aug 17: None (Below G1) Aug 18: None (Below G1) Aug 19: 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 4 - Date: 2025-08-16 12:06:19.113 Space Weather Message Code: ALTTP2 Serial Number: 1424 Issue Time: 2025 Aug 16 1206 UTC ALERT: Type II Radio Emission Begin Time: 2025 Aug 16 1048 UTC Estimated Velocity: 620 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 5 - Date: 2025-08-16 08:33:51.437 Space Weather Message Code: ALTEF3 Serial Number: 3516 Issue Time: 2025 Aug 16 0833 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3515 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 4263 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 6 - Date: 2025-08-15 08:57:00.113 Space Weather Message Code: ALTEF3 Serial Number: 3515 Issue Time: 2025 Aug 15 0857 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3514 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 2590 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 7 - Date: 2025-08-14 12:11:18.267 Space Weather Message Code: ALTEF3 Serial Number: 3514 Issue Time: 2025 Aug 14 1211 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3513 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 8356 pfu Comment: The great than 2 MeV electron flux in geosynchronous orbit continues to reach high levels of greater than or equal to 1,000 pfu. Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 8 - Date: 2025-08-14 11:51:28.170 Space Weather Message Code: WARK04 Serial Number: 5063 Issue Time: 2025 Aug 14 1151 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5062 Valid From: 2025 Aug 13 2149 UTC Now Valid Until: 2025 Aug 14 1500 UTC Warning Condition: Persistence Comment: High, lattitude areas under nightfall are expcted to continue to experience active geomagnetic conditions until 1500 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 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 9 - Date: 2025-08-14 02:31:50.397 Space Weather Message Code: WARK04 Serial Number: 5062 Issue Time: 2025 Aug 14 0231 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5061 Valid From: 2025 Aug 13 2149 UTC Now Valid Until: 2025 Aug 14 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 10 - Date: 2025-08-13 21:49:57.157 Space Weather Message Code: WARK04 Serial Number: 5061 Issue Time: 2025 Aug 13 2149 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2025 Aug 13 2149 UTC Valid To: 2025 Aug 14 0300 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 11 - Date: 2025-08-13 05:17:45.940 Space Weather Message Code: ALTEF3 Serial Number: 3513 Issue Time: 2025 Aug 13 0517 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3512 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 3163 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 12 - Date: 2025-08-12 23:54:22.977 Space Weather Message Code: WARK04 Serial Number: 5060 Issue Time: 2025 Aug 12 2354 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5059 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 13 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 13 - Date: 2025-08-12 14:06:06.807 Space Weather Message Code: WARK04 Serial Number: 5059 Issue Time: 2025 Aug 12 1406 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5058 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 13 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 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 14 - Date: 2025-08-12 11:13:25.450 Space Weather Message Code: WARK04 Serial Number: 5058 Issue Time: 2025 Aug 12 1113 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5057 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 12 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 15 - Date: 2025-08-12 08:03:02.110 Space Weather Message Code: ALTEF3 Serial Number: 3512 Issue Time: 2025 Aug 12 0803 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3511 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 6326 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 16 - Date: 2025-08-12 01:44:52.833 Space Weather Message Code: WARK04 Serial Number: 5057 Issue Time: 2025 Aug 12 0144 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5056 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 12 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 17 - Date: 2025-08-11 11:11:17.683 Space Weather Message Code: WARK04 Serial Number: 5056 Issue Time: 2025 Aug 11 1111 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5055 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 12 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 18 - Date: 2025-08-11 05:39:22.593 Space Weather Message Code: ALTEF3 Serial Number: 3511 Issue Time: 2025 Aug 11 0539 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Continuation of Serial Number: 3510 Begin Time: 2025 Aug 10 1145 UTC Yesterday Maximum 2MeV Flux: 3695 pfu Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 19 - Date: 2025-08-10 15:03:02.570 Space Weather Message Code: WARK04 Serial Number: 5055 Issue Time: 2025 Aug 10 1503 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5054 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 11 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 20 - Date: 2025-08-10 12:06:15.950 Space Weather Message Code: ALTEF3 Serial Number: 3510 Issue Time: 2025 Aug 10 1206 UTC ALERT: Electron 2MeV Integral Flux exceeded 1000pfu Threshold Reached: 2025 Aug 10 1145 UTC Station: GOES19 Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 21 - Date: 2025-08-10 07:48:23.350 Space Weather Message Code: WARK05 Serial Number: 2087 Issue Time: 2025 Aug 10 0748 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2025 Aug 10 0747 UTC Valid To: 2025 Aug 10 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. ------------------------------------------------------------------------------------------------------------------------------------------- MSG 22 - Date: 2025-08-10 02:19:39.270 Space Weather Message Code: WARK04 Serial Number: 5054 Issue Time: 2025 Aug 10 0219 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5053 Valid From: 2025 Aug 08 1415 UTC Now Valid Until: 2025 Aug 10 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 23 - Date: 2025-08-09 16:52:40.280 Space Weather Message Code: ALTK06 Serial Number: 651 Issue Time: 2025 Aug 09 1652 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2025 Aug 09 1648 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 24 - Date: 2025-08-09 16:28:46.487 Space Weather Message Code: WARK06 Serial Number: 599 Issue Time: 2025 Aug 09 1628 UTC WARNING: Geomagnetic K-Index of 6 expected Valid From: 2025 Aug 09 1628 UTC Valid To: 2025 Aug 09 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 25 - Date: 2025-08-09 16:01:57.910 Space Weather Message Code: ALTK05 Serial Number: 1840 Issue Time: 2025 Aug 09 1601 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Aug 09 1556 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. -------------------------------------------------------------------------------------------------------------------------------------------

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

NASA Released: 2025 Aug 18 0120 UTC
Date UTC	Radio Flux 107 cm	Planetary A Index	Largest Kp Index
• 2025 Aug 18	115	12	3
2025 Aug 19	110	30	5
2025 Aug 20	110	18	4
2025 Aug 21	110	8	3
2025 Aug 22	110	8	3
2025 Aug 23	120	5	2
2025 Aug 24	125	5	2
2025 Aug 25	120	8	3
2025 Aug 26	120	8	3
2025 Aug 27	125	10	3
2025 Aug 28	125	12	4
2025 Aug 29	130	8	3
2025 Aug 30	130	10	3
2025 Aug 31	140	10	3
2025 Sep 01	150	8	3
2025 Sep 02	150	5	2
2025 Sep 03	140	5	2
2025 Sep 04	140	20	4
2025 Sep 05	135	35	6
2025 Sep 06	130	20	4
2025 Sep 07	130	15	3
2025 Sep 08	130	15	3
2025 Sep 09	120	15	3
2025 Sep 10	120	10	3
2025 Sep 11	115	5	2
2025 Sep 12	110	5	2
2025 Sep 13	110	5	2

SDO | Solar Dynamics Observator Images

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Ham QSL Data

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NASA | SWPC