X-Class Solar Flare Triggers Geomagnetic Storm Watch for July 3
X-Class Solar Flare Triggers Geomagnetic Storm Watch for July 3
US · Published Jul 1, 2026
A powerful X1.1-class solar flare erupted from sunspot region AR4479 on June 30, 2026, at 4:50 p.m.
EDT (2050 GMT), releasing intense X-rays that reached Earth in just over 8 minutes.

Impact & Risks

The X-class solar flare caused temporary disruptions to high-frequency radio communications, particularly in North America. The upcoming G2 geomagnetic storm could lead to visible auroras in northern and upper Midwestern U.S. states, such as New York and Idaho, if skies are clear. Geomagnetic storms of this level can also affect satellite operations, power grids, and navigation systems, though the risks are considered moderate. The extent of the impact will depend on the CME's strength and magnetic orientation upon arrival.

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