May 30, 2024 - The sunspot responsible for the spectacular northern lights displays in May is back in action, raising concerns of another geomagnetic storm.
Powerful Flare Erupts
On May 29th, a powerful X1.4-class solar flare erupted from the sunspot, now designated AR3697. This flare, classified among the strongest types, caused radio blackouts across the US and Western Europe.
Sunspot's Second Act
Previously named AR3664, this sunspot was responsible for the auroras seen across the US in May. After rotating out of view, it has returned, albeit smaller, and continues to produce solar flares and coronal mass ejections (CMEs) – clouds of charged particles hurled towards Earth.
Will Kansas, Missouri see the Northern Lights again?
Will the Northern Lights grace Kansas and Missouri skies? It's too early to say for sure. The answer hinges on the strength of any coronal mass ejections (CMEs) unleashed by the approaching solar storm. Only powerful CMEs, rated 4 or 5 on the geomagnetic storm index, can trigger auroras that far south.
Potential Geomagnetic Storm on Horizon
Experts warn that a CME launched alongside the recent flare could impact Earth between May 31st and June 1st, potentially triggering a G2-class geomagnetic storm. This storm may cause auroras to be visible further south than usual, but not as extensive as the May 10th G5 storm.
Solar Flares: Disruptions Beyond Radio Blackouts
While radio blackouts are a common consequence of solar flares, they can also disrupt satellites, GPS signals, and pose health risks to astronauts and airline crews.
Monitoring the Situation
Space weather agencies like NOAA's Space Weather Prediction Center are closely monitoring the situation and will provide updates on the CME's trajectory and potential impacts.
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