Moderate M1.1 solar flare erupts at 00:02 UTC on July 2, 2026

A moderate M1.1 solar flare erupted at 00:02 UTC on July 2, 2026.

Today’s flare activity includes a radio burst that began at 00:03 UTC, peaked at 00:05 UTC, and ended at 00:05 UTC. This event was observed on a frequency of 245 MHz with particulars noted as 300.

In 24 hours to 12:30 UTC on July 1, solar activity reached high levels due to an X1.1 flare, accompanied by four impulsive low-level M-class flares and additional C9.1 and M5.8 activity. Growth was observed in prominent regions with small deltas forming on the peripheries.

Solar activity is likely to reach moderate levels (R1 – Minor to R2 – Moderate) with a slight chance for X-class flares (R3 – Strong) due to the flare potential of three active regions.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4475 (S09W63 – Beta), AR 4477 (S14W31 – Beta), AR 4478 (S05W06 – Beta-Gamma-Delta), AR 4479 (N16W24 – Beta-Gamma-Delta), and AR 4480 (S18W30 – Beta).

Over the past 24 hours, the greater than 2 MeV electron flux was at moderate to high levels with a peak flux of 5 687 pfu observed. The greater than 10 MeV proton flux remained at background levels. The greater than 2 MeV electron flux is expected to again reach high levels on July 1 and July 3. Moderate levels are likely on July 2 due to the possible arrival of the June 27 CME. There is a slight chance for an S1 – Minor solar radiation storm, due to activity in key active regions.

Solar wind parameters were enhanced during the past 24 hours due to CME arrival, with the total field strength gradually increasing to 18 nT. The Bz component was variable, with some southward deflections down to -10 nT, and solar wind speeds remained steady near 425 km/s. Solar wind conditions are expected to remain enhanced on July 1. Additional enhancements could occur between late July 1 and early July 2 with the likely arrival of the June 27 CME. Additional solar wind strengthening is possible by July 3, linked to a CME that left the Sun on June 30.

The geomagnetic field was initially quiet but became active to G1 – Minor conditions during the latter half of the summary period as a CME arrived. G1 – Minor storming is expected, with a chance for isolated periods of G2 – Moderate storming through early July 1. Unsettled to active conditions are expected on July 2 with the possible arrival of another CME, though confidence is lower for this event. G1–G2 conditions are possible by July 3, pending further CME analysis.