Strong M5.0 solar flare erupts at 10:11 UTC on November 3, 2025

A strong M5.0 solar flare erupted at 10:11 UTC on November 3, 2025.

Today’s flares include a moderate M1.6 event which peaked at 09:25 UTC from region 4274, and several minor C-class flares including a C7.1 at 04:30 UTC (region 4274) and a C3.0 at 06:49 UTC (region 4272). No X-class flares were reported in the available event list for November 3, 2025.

In 24 hours to 00:30 UTC on November 3, solar activity reached moderate levels due to an M1.0 flare from a region beyond the east limb. Additional C-class activity was observed from region 4267, and a new sunspot region was identified near N23E83.

Solar activity is expected to be at low levels with a chance for M-class flares through November 5 as previously active regions return.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4267 (N02W65 – Beta), AR 4272 (N22E63 – Beta), and AR 4273 (S12E27 – Beta).

Over the past 24 hours, the greater than 2 MeV electron flux reached high levels, with a maximum flux of 10 260 pfu at 02/16:50 UTC. The greater than 10 MeV proton flux remained near background levels. The electron flux is expected to remain at moderate to high levels as high-speed stream influence wanes, while proton flux should remain at background levels.

Solar wind conditions showed enhanced parameters associated with a positive polarity coronal hole high-speed stream. The total field ranged between 5 and 8 nT with occasional southward Bz deflections of -5 to -6 nT. Solar wind speeds decreased from approximately 620 km/s to 490 km/s. Near-Earth solar wind is expected to show waning high-speed stream influence with ambient-like conditions returning by November 5.

The geomagnetic field was at unsettled to active levels due to diminishing high-speed stream effects. Geomagnetic activity is expected to range from unsettled to active, with a chance for an isolated G1 – Minor storming period on November 3. Mostly quiet and unsettled levels are anticipated on November 4, and quiet conditions should prevail on November 5.