Geomagnetic Storms - NOAA / NWS Space Weather Prediction …
A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment …
Geomagnetic storm - Wikipedia
A geomagnetic storm, also known as a magnetic storm, is a temporary disturbance of the Earth's magnetosphere that is driven by interactions between the magnetosphere and large-scale …
Severe Magnetic Storm (ongoing) | U.S. Geological Survey
Oct 10, 2024 · The present storm is being monitored at USGS magnetometer stations. Geomagnetic declination at College (Fairbanks), Alaska, has varied by 10.4 degrees, enough …
Geomagnetic storm hits Earth, officials warned to ‘mitigate
A strong geomagnetic storm that has been impacting Earth since Monday has prompted national forecasters to warn officials "to mitigate any possible impacts."
Geomagnetic storm | Solar Wind, Auroras & Magnetosphere
Dec 9, 2025 · Geomagnetic storm, disturbance of Earth’s upper atmosphere brought on by coronal mass ejections—i.e., large eruptions from the Sun’s outer atmosphere, or corona. The …
2026 Geomagnetic Storm: Moderate Impacts Jan 10-11 - Archyde
2 days ago · The predicted moderate (G2) geomagnetic storm expected around January 10-11, 2026, is a key indicator of a broader trend: the sun is approaching solar maximum, the peak of …
NOAA Issues G3 Geomagnetic Storm Warning As 500,000
Sep 15, 2025 · The storm, the result of a coronal hole spanning 500,000 kilometers (310,000 miles) across the solar surface, has now reached G3 on the NOAA Space Weather Scale.
Geomagnetic Storms Explained: All You Need to Know
May 12, 2025 · A geomagnetic storm is a space weather event caused when the Sun shoots out a burst of charged particles that hit Earth’s magnetic field. This can shake up our atmosphere, …
What NASA Is Learning from the Biggest Geomagnetic Storm in …
May 9, 2025 · One year on, NASA scientists are still making huge discoveries about the largest geomagnetic storm to hit Earth in two decades, the Gannon storm. The findings are helping us …
Northern lights may be visible in 12 states Jan. 8-9 | Space
3 days ago · Auroras may be visible from Alaska to New York as incoming coronal mass ejections and high-speed solar winds could trigger geomagnetic storms tonight.