Space weather / EVENT RECORD
WARNING: Geomagnetic K-index of 5 expected
NOAA SWPC · Every measurement below belongs to the selected record.
Read the source-series history ↗- Bulletin issued
- 2026-10-21 22:28:09.410Z
- Source update / publication
- 2026-10-21 22:28:09.410Z
WARNING: Geomagnetic K-index of 5 expected · Valid From: 2026 Oct 21 2227 UTC · Valid To: 2026 Oct 22 0900 UTC · Warning Conditions: Onset · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor
Read the original NOAA SWPC record ↗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
21 October 2026 ↗SOURCE ID swpc:K05W:2026-10-21T22:28:09.410Z