Moderate M2.2 solar flare erupts at 06:34 UTC on August 26, 2026

A moderate M2.2 solar flare erupted at 06:34 UTC on August 26, 2026.

Today’s flares include an M1.9 flare at 01:26 UTC, an M1.0 flare at 04:02 UTC, an M1.8 flare at 06:40 UTC, and an M6.9 flare at 10:02 UTC, all from Region 4513. No other edited solar flare events were reported for August 26, 2026.

In 24 hours to 00:30 UTC on August 26, solar activity reached moderate levels, highlighted by four M-class flares from Region 4513. The largest event, an M6.9 flare, was accompanied by a Type II radio sweep and CME. Additional C-class flares were also reported.

Solar activity will likely remain at minor to moderate (R1-R2) levels with a slight chance for strong (R3) flares through August 28, mainly associated with Regions 4513 and 4517.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4513 (N04W04 – Beta-Gamma-Delta), AR 4515 (S07E09 – Alpha), AR 4516 (N16W68 – Beta-Gamma), and AR 4517 (N10W17 – Beta-Gamma).

Over the past 24 hours, the greater than 2 MeV electron flux reached high levels, peaking at 1 610 pfu. The greater than 10 MeV proton flux remained below S1 – Minor storm thresholds. High electron flux is expected to persist through August 27, with a slight chance for S1 – Minor proton storm levels through August 28 due to Region 4513.

Solar wind parameters remained undisturbed, with speeds between 325-365 km/s. The interplanetary magnetic field saw values around 5 nT, and the Bz component fluctuated mainly positive. Nominal solar wind conditions are expected until midday August 27. Afterward, coronal hole high speed stream onset will likely increase speeds up to 600 km/s, with further disturbances likely August 28 due to recent CMEs.

The geomagnetic field was quiet over the past 24 hours. Quiet levels are expected to continue through midday August 27. Unsettled to G1 – Minor geomagnetic storms are likely by mid to late August 27 with G2 – Moderate storms forecast for August 28 following anticipated CME impact.