A major solar flare measuring X1.4 at its peak erupted from Active Region 4405 at 03:19 UTC on March 30, 2026. The event started at 02:47 and ended at 03:44 UTC. It produced a large partial-halo CME, with a glancing blow to Earth expected around 18:00 UTC on March 31.
A moderately strong solar flare measuring M2.7 erupted from Active Region 4392 at 12:15 UTC on March 16, 2026. The event lasted 24 minutes.
An M1.0 solar flare erupted from Active Region 4373 at 08:58 UTC on February 13, 2026, launching a coronal mass ejection (CME) expected to glance Earth around February 15–16. SWPC forecasts G1 – Minor to isolated G2 – Moderate geomagnetic storm conditions as the CME interacts with a co-rotating interaction region and a positive-polarity coronal-hole high-speed stream.
An impulsive X4.2 solar flare erupted from geoeffective Active Region 4366 at 12:13 UTC on February 4, 2026. The flare originated from a magnetically complex beta-gamma-delta region that produced dozens of M- and 5 other X-class flares since February 1. Its location near the central solar disk raises the possibility of Earth-directed coronal mass ejections (CMEs) this week.
An X1.5 solar flare erupted from AR 4366 at 14:08 UTC on February 3, 2026, the fifth X-class event recorded since February 1. The flare caused an R3-level radio blackout over daylight regions of Earth, affecting HF communication across the Atlantic and parts of Europe and Africa.
A major X8.1 solar flare erupted from Active Region 4366 at 23:57 UTC on February 1, 2026, following rapid magnetic expansion and intense flaring throughout the day. The region also produced an X1.0 flare at 12:33 UTC on February 1 and an X2.8 event at 00:36 UTC and an X1.6 at 08:14 UTC on February 2, accompanied by more than 20 M-class flares since 02:00 UTC on February 1.
A major X1.0 solar flare erupted at 12:33 UTC on February 1, 2026, from Active Region 4366, following a sequence of strong M-class flares earlier in the day, including M6.6 and M6.7 flares within two hours. The event started at 11:52 and ended at 12:38 UTC. With the region now rotating toward the center of the solar disk and maintaining a complex beta-gamma-delta magnetic configuration, conditions are favorable for Earth-directed CMEs in the days ahead.
A strong solar radiation storm (S3) is in progress after ≥10 MeV proton flux exceeded 1 000 pfu at 10:20 UTC on January 19, 2026. The event follows an X1.9 solar flare and full-halo coronal mass ejection that erupted on January 18. S3 – Strong solar radiation storms are relatively rare, occurring just a few times in one 11-year solar cycle.
A long-duration X1.9 solar flare erupted from Active Region 4341 at 18:09 UTC on January 18, 2026. The event began at 17:27 and ended at 18:51 UTC. Coronagraph imagery indicates that a full halo coronal mass ejection (CME) was produced during the eruption. Given the location of the source region on the solar disk, the CME is considered likely to be at least partially Earth-directed, pending further analysis of its speed and magnetic structure.
Multiple coronal mass ejections (CMEs) launched from Active Region 4334 on January 8, 2026, are expected to deliver a glancing blow to Earth between late January 10 and early January 11, according to the U.S. Space Weather Prediction Center (SWPC). The interaction of several CMEs and a coronal hole high-speed stream is forecast to cause isolated G1 – Minor geomagnetic storm conditions. Aurora may become visible across high latitudes, including the northern tier of the United States, such as northern Michigan and Maine.
