Solar activity reached high levels on April 26, 2026, after Region 4420 produced an M6.0 flare at 22:57 UTC, reaching R2 – Moderate radio blackout level. NOAA’s Space Weather Prediction Center (SWPC) forecasts a 70% chance of additional M-class flares capable of R1–R2 radio blackouts and a 25% chance of X-class flares capable of R3 or greater events through April 29.
An X2.5 solar flare erupted from Active Region 4419 at 08:13 UTC on April 24, 2026, marking the second X-class event within hours after an earlier X2.4 flare at 01:07 UTC. The event started at 08:01 UTC and ended at 08:18 UTC. The flare produced strong radio emissions and reached R3 (Strong) radio blackout levels on the sunlit side of Earth.
A major X2.4 solar flare erupted from Active Region 4419 at 01:07 UTC on April 24, 2026. The event started at 00:51 UTC and ended at 01:13 UTC. A large coronal mass ejection was produced, but it’s not expected to be Earth-directed. This is the first X-class solar flare since X1.4 on March 30.
Multiple M-class solar flares, including M1.6 and M4.4, erupted on April 23, 2026, producing coronal mass ejections (CMEs). Meanwhile, Active Region 4420 exhibited significant growth in area and magnetic complexity as it moves toward the center of solar disk, raising the potential for Earth-directed CMEs in the days ahead.
A strong solar flare measuring M7.5 erupted from Active Region 4409 at 01:17 UTC on April 4, 2026. The event started at 01:07 and ended at 01:23 UTC. No radio signatures indicating a coronal mass ejection (CME) were detected, despite the region’s position near the center of the solar disk, where any CME produced would likely be Earth-directed. Forecast conditions indicate solar activity will likely remain at moderate levels through April 6, with a slight chance of X-class flares, while geomagnetic conditions are expected to reach G1 – Minor to G2 – Moderate storm levels on April 4 under the combined influence of the April 1 CME and a negative polarity coronal hole high-speed stream.
A filament eruption associated with a C6.1 solar flare from Active Region 4403 at 23:28 UTC on April 1, 2026, produced an asymmetric halo coronal mass ejection. Initial modeling indicates the bulk of the ejecta is directed north of Earth’s orbit, with a possible glancing impact early on April 4 that could trigger minor to moderate geomagnetic storming. Current geomagnetic conditions remain influenced by a combined coronal hole high-speed stream and prior CME activity.
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.
