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.

This event began at 08:37 UTC, reached maximum at 08:43 UTC, and ended at 08:47 UTC. It originated from active region 4566.

Today’s flares include an M1.7 flare at 07:46 UTC (region 4566), an M1.1 flare at 15:37 UTC (region 4566), and several C-class flares, including C8.9 at 03:24 UTC, C8.0 at 08:43 UTC, C4.4 at 01:07 UTC, C3.9 at 00:49 UTC, and others, all from region 4566. No X-class flares were reported.

In 24 hours to 12:30 UTC on November 8, solar activity was at moderate levels, with four M-class flares and numerous C-class flares observed. Sunspot development continued in the main active region. No Earth-directed coronal mass ejections were detected.

M-class flares (R1 – Minor to R2 – Moderate) are likely, with a slight chance for an X-class flare (R3 – Strong), through November 10.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4566 (S06E06 – Beta-Gamma-Delta), AR 4565 (N13W31 – Alpha), 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 was at moderate levels, while the greater than 10 MeV proton flux remained at background levels. The greater than 2 MeV electron flux is likely to be at normal to moderate levels on November 8–9, 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 8–10.

Solar wind parameters reflected continued influence from a negative polarity coronal hole high-speed stream, with total magnetic field strength up to 15 nT, southward Bz to -11 nT, and solar wind speeds peaking near 763 km/s. The solar wind environment is expected to remain enhanced over November 8–10 due to ongoing coronal hole high-speed stream influences.

The geomagnetic field was at unsettled to G1 – Minor storm levels due to the effects of the negative polarity coronal hole stream. Geomagnetic conditions are expected to reach G1 – Minor storm levels, with a chance for G2 – Moderate storm levels, on November 8–9. Unsettled to active conditions are likely by November 10 as coronal hole effects decrease.