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2 clusters · 6 sources · 1 days · First seen · Last updated

Solar activity and geomagnetic storm events

Overview

Solar activity in late August 2026 has triggered various space weather warnings. An M6.9 solar flare from Active Region 4513 caused a moderate (R2) radio blackout affecting high-frequency communications in the Arctic, Europe, and parts of Africa.

Following the detection of Earth-directed coronal mass ejections (CMEs) associated with the M6.9 flare and a subsequent C4.7 flare, NOAA’s Space Weather Prediction Center issued a G2 moderate geomagnetic storm watch for August 28. Additionally, a G1 minor geomagnetic storm watch was issued for August 27 due to an approaching coronal-hole high-speed stream.

While earlier forecasts suggested a 55% probability of moderate radio interference and a 15% risk of stronger events, the specific flare activity has confirmed immediate impacts on radio communications. Potential broader effects include minor power grid fluctuations and satellite system issues.

Entities

NOAA Space Weather Prediction Center · Sun · NOAA · NASA · Earth

Timeline

  1. 19 days ago

    [TECHNOLOGY] 4 sources
    Solar flare and CME trigger geomagnetic storm watches

    A powerful M6.9 solar flare and Earth-directed coronal mass ejections have prompted geomagnetic storm watches for August 27 and 28, potentially affecting radio communications and aurora visibility.

  2. 19 days ago

    [TECHNOLOGY] 2 sources
    NOAA forecasts solar activity and radio interference for late August 2026

    NOAA forecasts suggest a 55% chance of moderate radio interference (R1–R2) on August 28, 2026, despite no immediate prediction of a G1-level geomagnetic storm.

Sources

actualno.com · bsbtimes.com.br · iskra.bg · space.com · spaceweekly.com · watchers.news