A moderately strong M4.4 solar flare erupted from Active Region 4168 at 15:53 UTC on August 5, 2025, producing a coronal mass ejection (CME). Initial modeling indicates most of the material was directed ahead of Earth’s orbit, with a glancing blow or shock arrival possible by late August 8.
A faint partial halo coronal mass ejection (CME), associated with a filament eruption near N07W12 at approximately 05:00 UTC on July 23, 2025 is forecast to arrive at Earth around midday UTC on July 27.
After 18 days with no notable flaring, our star unleashed an M2.4 solar flare from an emerging region on the northeast limb. The flare began at 03:42, peaked at 04:17 and ended at 04:37 UTC.
An impulsive solar flare measuring X1.9 erupted from Active Region 4114 at 23:50 UTC on June 19, 2025. The event started at 23:37 and ended at 23:54 UTC.
An impulsive solar flare measuring X1.2 erupted from Active Region 4114 at 21:49 UTC on June 17, 2025. The event started at 21:38 and ended at 21:54 UTC.
A strong M8.4 solar flare erupted from Active Region 4114 at 18:07 UTC on June 15, 2025. This event began at 17:45 UTC, peaked at 18:07 UTC, and ended at 18:25 UTC.
The U.S. Space Weather Prediction Center (SWPC) issued a G4 – Severe geomagnetic storm watch for June 2, 2025, following the eruption of a powerful, Earth-directed coronal mass ejection (CME) associated with a long-duration M8.1 solar flare from Active Region 4100. The CME is forecast to arrive at Earth late on June 1, with geomagnetic storm conditions expected to intensify through June 2.
A strong, long-duration solar flare registered as M8.1 erupted from Active Region 4100 at 00:05 UTC on May 31, 2025. The flare began at 23:31 UTC on May 30 and ended at 01:32 UTC on May 31. The eruption produced a significant coronal mass ejection (CME). Model forecasts indicate that the CME is Earth-directed and is expected to arrive on June 1.
A moderately strong solar flare measuring M3.4 erupted from Active Region 4100 at 06:13 UTC on May 30, 2025. The event started at 05:40 and ended at 06:19 UTC. A coronal mass ejection (CME) may have been produced during the event, and there is a possibility that part of it is directed toward Earth.
A major solar flare measuring X1.1 erupted at 01:52 UTC on May 25, 2025, from Active Region 4098 located in the southwest quadrant. The event began at 01:46 UTC and ended at 01:57 UTC. Multiple associated radio bursts were detected between 01:48 and 01:53 UTC.
