May 2024 solar storms

May 2024 solar storms
VIIRS image showing the aurora borealis over the Northern Hemisphere on 10–11 May.
Associated solar active region
NOAA region no.13664
Largest SXR flaresX8.7
G5 "Extreme" geomagnetic storm
G-scale (NOAA/SWPC)
Initial onset10 May 2024 (2024-05-10)
Peak onset11 May 2024 (2024-05-11)
Dissipated13 May 2024 (2024-05-13)
Peak Kp-index9
Peak Ap-index271
Peak Dst−412 nT

Part of solar cycle 25

The solar storms of May 2024 were a series of powerful solar storms with extreme solar flares and geomagnetic storm components that occurred from 10–13 May 2024 during solar cycle 25. The geomagnetic storm was the most powerful to affect Earth since March 1989,[a] and produced aurorae at far more equatorial latitudes than usual in both the Northern and Southern Hemispheres.[1][2]


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  1. ^ Miller, Katrina; Penn, Ivan; Lindner, Emmett (11 May 2024). "Northern Lights Set to Return During Extreme Solar Storm's 2nd Night – Electrical utilities said they weathered earlier conditions as persistent geomagnetic storms were expected to cause another light show in evening skies". The New York Times. Archived from the original on 12 May 2024. Retrieved 12 May 2024.
  2. ^ Ralls, Eric (10 May 2024). "Auroras expected all weekend across the U.S. as massive solar storm hits Earth". Earth.com. Archived from the original on 11 May 2024. Retrieved 11 May 2024.

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