Space Weather Prediction Center

National Oceanic and Atmospheric Administration

MODERATE Geomagnetic Storm WATCH for 08 Aug UTC-Day

G2 (Moderate geomagnetic storm) watch slide with illustration of aurora.
MODERATE Geomagnetic Storm WATCH for 08 Aug UTC-Day
published: Wednesday, August 9, 2023 02:38 UTC UTC

A geomagnetic storm whatch is in effect.

What is it?

An eruption from the sun on August 5th is likely to come to Earth and cause a moderate (G2) disturbance in Earth’s magnetic field, a geomagnetic storm.

When will it get here?

Tuesday, August 8th after midnight EDT or around 6 a.m. UTC  

NOTE: There is always some uncertainty surrounding the expected arrival times 

Why do I care?

Geomagnetic storms produce aurora.  Monitor it in real-time on the Aurora Watchers Dashboard where you’ll find links to

Tips on viewing the aurora and to an Aurora Tutorial.