Solar Flare and CME May Trigger Northern Lights This Week
Solar Flare and CME May Trigger Northern Lights This Week
US · Published May 11, 2026
A powerful M5.7 solar flare erupted from the sun on May 10, 2026, accompanied by a coronal mass ejection (CME) that could graze Earth later this week.
According to Space.com, the flare originated from sunspot region AR4436, which is now rotating into a position where future eruptions could more directly impact Earth.
The CME is expected to potentially trigger minor (G1) geomagnetic storm conditions, enhancing aurora displays at high latitudes.

Why It's Important?

The CME's potential impact on Earth is expected to be minor, with geomagnetic storm conditions likely limited to G1 levels. This could enhance auroras in northern regions, including parts of the northern U.S. and U.K. However, the solar flare has already caused disruptions to high-frequency radio communications, which may affect aviators, mariners, and amateur radio operators. No significant infrastructure impacts are anticipated at this time.

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