Moderate M1.3 solar flare erupts at 01:16 UTC on June 30, 2026

A moderate M1.3 solar flare erupted at 01:16 UTC on June 30, 2026.

Today’s flares include no X-class or M-class flares listed in event reports for June 30, 2026. No additional flare start times, end times, or source region information have been provided for this date.

In 24 hours to 00:30 UTC on June 30, solar activity reached moderate levels, with frequent C-class flares reported. The most significant events consisted of a C6.1 flare at 17:40 UTC and an M1.4 flare at 21:40 UTC on June 29. Other flares included a C4.1 at 03:40 UTC and a C3.5 at 17:30 UTC on June 29.

Solar activity is expected to reach moderate levels through July 2, with continued chances of isolated M-class flares (R1 – Minor to R2 – Moderate radio blackouts) due to recent region activity.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4475 (S09W49 – Beta-Gamma-Delta), AR 4477 (S14W15 – Beta), AR 4478 (S05E08 – Beta-Gamma-Delta), AR 4479 (N16W10 – Beta-Gamma-Delta), and AR 4480 (S18W17 – Beta).

Over the past 24 hours, the greater than 2 MeV electron flux reached high levels, peaking at 2 890 pfu. The greater than 10 MeV proton flux remained at background levels. The electron flux is expected to return to normal to moderate levels on June 30, depending on CME arrival timing, and remain at these levels through July 2. Proton flux is forecast to stay at background levels through July 1, with a slight risk of S1 – Minor solar radiation storming on July 2 as active regions rotate into a favorable position for Earth connection.

During the past 24 hours, solar wind parameters returned to ambient-like conditions with total field averaging 3–4 nT and Bz near neutral. Solar wind speed declined from about 430 km/s to 330 km/s, with phi in a negative sector. A disturbed solar wind environment is forecast for June 30 and July 1 due to CME arrival, expected to subside by July 2.

Geomagnetic field activity was quiet over the past 24 hours. A G1 – Minor geomagnetic storm is likely on June 30 with isolated periods possibly reaching G2 – Moderate levels following expected CME passage, with unsettled to active geomagnetic conditions extending into July 1 and early July 2 before returning to mostly quiet levels.