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
- 2026-10-10 18:29:51.855Z
- Last seen in a feed
- 2026-10-10 18:59:51.870Z
- Source classification
- ALERT · Published bulletin
ALERT: Geomagnetic K-index of 5 · Threshold Reached: 2026 Oct 10 1818 UTC · Synoptic Period: 1800-2100 · Active Warning: YES · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor
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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.
newly tracked · Captured 2026-10-10 18:29:51.855Z
ALERT: Geomagnetic K-index of 5
ALERT: Geomagnetic K-index of 5 · Threshold Reached: 2026 Oct 10 1818 UTC · Synoptic Period: 1800-2100 · Active Warning: YES · Noaa Scale: G1 - Minor · Comment: · NOAA Scale: G1 - Minor
Source issued/updated 2026-10-10T18:18:53.587Z · Published bulletin
Source for this capture ↗