NOAA SWPC / CAPTURE HISTORY
WARNING: Geomagnetic K-index of 4 expected
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 18:14:52.349Z
- Source classification
- WARNING · Published bulletin
WARNING: Geomagnetic K-index of 4 expected · Valid From: 2026 Oct 09 0128 UTC · Valid To: 2026 Oct 10 0600 UTC · Warning Conditions: Onset · Comment: · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation
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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.
baseline · Captured 2026-10-09 17:11:48.776Z
WARNING: Geomagnetic K-index of 4 expected
WARNING: Geomagnetic K-index of 4 expected · Valid From: 2026 Oct 09 0128 UTC · Valid To: 2026 Oct 10 0600 UTC · Warning Conditions: Onset · Comment: · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation
Source issued/updated 2026-10-09T01:29:51.387Z · Published bulletin
Source for this capture ↗