Skip to content
The Earth Record
Menu
← Daily journal

NOAA SWPC / CAPTURE HISTORY

WARNING: Geomagnetic K-index of 4 expected

Latest captured source record. This is an archive, not a current warning service.

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 Sep 15 1849 UTC · Valid To: 2026 Sep 16 0600 UTC · Warning Conditions: Onset · Comment: · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation

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.

  1. 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 Sep 15 1849 UTC · Valid To: 2026 Sep 16 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 2026-09-15T18:50:25.120Z · Published bulletin

    Source for this capture ↗