NOAA SWPC / CAPTURE HISTORY
ALERT: Geomagnetic K-index of 5
Latest captured source record. This is an archive, not a current warning service.
Open the detailed event record ↗- First tracked
- 2026-10-09 17:11:48.776Z
- Last seen in a feed
- 2026-10-09 17:59:50.706Z
- Source classification
- ALERT · Published bulletin
ALERT: Geomagnetic K-index of 5 · Threshold Reached: 2026 Oct 04 1839 UTC · Synoptic Period: 1800-2100 · Active Warning: YES · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor
Read original source ↗How the record changed
Only changes captured by this journal are listed; this is not the authority’s complete history. Timestamps distinguish publication from our capture. Missing messages are never treated as cancellations.
baseline · Captured 2026-10-09 17:11:48.776Z
ALERT: Geomagnetic K-index of 5
ALERT: Geomagnetic K-index of 5 · Threshold Reached: 2026 Oct 04 1839 UTC · Synoptic Period: 1800-2100 · Active Warning: YES · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor
Source issued/updated 2026-10-04T18:40:00.443Z · Published bulletin
Source for this capture ↗