A geomagnetic storm, also known as a magnetic storm, is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave.

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 surrounding Earth. These storms result from variations in the solar wind that produces major changes in the currents, plasmas, and fields in Earth’s magnetosphere.

G1- Minor geomagnetic storm conditions were observed on 09 Feb 2025. Monitor our website for the latest forecasts, warnings, and alerts.

2025年2月8日 · 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 material associated with these eruptions consists primarily of protons and electrons with an energy of a few thousand electron volts.

2024年10月12日 · The anticipated coronal mass ejection (CME) arrived at Earth at 11:15am EDT at nearly 1.5 million miles per hour. The CME strength and structure are being closely scrutinized for potential geomagnetic storm intensity, but, G3 levels are now expected due to the magnitude and potential of the CME, therefore G3 or greater warning has been issued.

2024年5月10日 · Geomagnetic storms can impact infrastructure in near-Earth orbit and on Earth’s surface, potentially disrupting communications, the electric power grid, navigation, radio and satellite operations. SWPC has notified the operators …

2024年7月21日 · A geomagnetic storm is an enormous disturbance in Earth’s magnetosphere caused by an efficient energy exchange from the solar wind into the space environment surrounding Earth. Geomagnetic storms happen because of distinct changes in the solar wind's speed, density, and magnetic properties.

The solar wind is a continuous stream of particles--mainly protons and electrons in a state known as a plasma--flowing outward from the Sun. High speed solar winds bring geomagnetic storms while slow speed winds bring calm space weather.

2024年3月25日 · Moderate geomagnetic storms, classified as G2, can potentially impact high-latitude power systems, damage transformers and extend the northern lights to New York and Idaho. It can also...

Geomagnetic storms, induced by solar activity, pose significant hazards to satellites, electrical power distribution systems, radio communications, navigation, and geophysical surveys. Strong storms can expose astronauts and crews of high-flying aircraft to dangerous levels of radiation.