Minor C8.0 solar flare erupts at 08:43 UTC on November 8, 2026

A minor C8.0 solar flare erupted at 08:43 UTC on November 8, 2026.

Today’s flares include multiple C-class events from active region 4566. The most significant was a C8.9 flare peaking at 03:24 UTC from region 4566. Other events included C3.9, C4.4, C2.3, C3.0, C2.9, C3.7, C2.7, C2.3, and C2.9 flares, all associated with region 4566.

In 24 hours to 00:30 UTC on November 8, solar activity increased to moderate levels. Three R1 – Minor radio blackout events were observed, with the largest being an M1.9 flare at 18:42 UTC on November 7.

Solar activity is likely to see moderate M-class flares (R1-R2 – Minor to Moderate) and a chance for an X-class flare (R3 – Strong) from November 8 to 10.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4565 (N13W31 – Alpha), AR 4566 (S06E06 – Beta-Gamma-Delta), AR 4567 (N18W83 – Alpha), AR 4568 (S09E25 – Alpha), AR 4569 (S06W07 – Alpha), and AR 4570 (S13E47 – Alpha).

Over the past 24 hours, the greater than 2 MeV electron flux decreased to moderate levels and the greater than 10 MeV proton flux was at background levels. The greater than 2 MeV electron flux is likely to be at normal to moderate levels on November 8 to 9, with high levels likely by November 10. There is a slight chance for the greater than 10 MeV proton flux to exceed S1 – Minor levels over November 8 to 10.

In the solar wind, parameters reflected the ongoing effects of a negative polarity coronal hole high speed stream. The total magnetic field strength reached 15 nT, and the Bz component reached as far as -11 nT. Solar wind speeds increased from around 425 km/s to approximately 736 km/s. The solar wind environment is expected to remain enhanced as coronal hole high speed stream influences persist over November 8 to 10.

The geomagnetic field reached G1 – Minor geomagnetic storm levels late in the UT day. The geomagnetic field is expected to reach G1 – Minor geomagnetic storm levels, with a chance for G2 – Moderate storm levels on November 8, likely continuing into November 9. As coronal hole effects wane, unsettled to active conditions are likely on November 10.