Space weather / EVENT RECORD

WARNING: Geomagnetic K-index of 5 expected

NOAA SWPC · Every measurement below belongs to the selected record.

Bulletin issued

2026-10-04 11:07:31.433Z

Source update / publication

2026-10-04 11:07:31.433Z

WARNING: Geomagnetic K-index of 5 expected · Valid From: 2026 Oct 04 1110 UTC · Valid To: 2026 Oct 04 2100 UTC · Warning Conditions: Onset · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor

This is a source-linked archive. Source measurements and assessments can change. An archived bulletin is not evidence that a warning is currently active.

In the daily journal

SOURCE ID swpc:K05W:2026-10-04T11:07:31.433Z