geomagnetic storm

noun

: magnetic storm

Examples of geomagnetic storm in a Sentence

Recent Examples on the Web

Auroras are surprisingly faint to the naked eye at first, especially during weaker geomagnetic storms, so dark skies make all the difference! — Valerie Mesa, PEOPLE, 9 Sep. 2026

This week, the National Oceanic and Atmospheric Administration is tracking several coronal mass ejections that could lead to a minor geomagnetic storm in Earth’s atmosphere. — Mary Magnuson, The Conversation, 9 Sep. 2026

The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC) is currently forecasting G1 (minor) geomagnetic storm conditions tonight through tomorrow, with the Kp index expected to peak at 5. — Michele Laufik, Martha Stewart, 8 Sep. 2026

Forecasters are also warning of minor geomagnetic storms on Tuesday and early Wednesday morning, according to NOAA’s three-day forecast, likely caused by a coronal mass ejection or solar winds. — Zachary Folk, Forbes.com, 18 Aug. 2026

Word History

First Known Use

1941, in the meaning defined above

Rhymes for geomagnetic storm

• hydatidiform
• brainstorm
• conform
• deform
• firestorm
• hailstorm
• inform
• landform
• lukewarm
• perform
• planform
• platform