NOAA SWPC / Event history

EXTENDED WARNING: Geomagnetic K-index of 4 expected

EXTENDED WARNING: Geomagnetic K-index of 4 expected · Extension to Serial Number: 5434 · Valid From: 2026 Oct 13 0115 UTC · Now Valid Until: 2026 Oct 14 1200 UTC · Warning Condition: Persistence · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation

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Bulletin issued: 13 October 2026 at 20:58 UTC
First saved by us: 13 October 2026 at 21:13 UTC
Last included in a daily record: 20 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
Source classification: Bulletin · Published bulletin

A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.

The saved record

What changed

0 updates · 1 first record

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First saved record · 13 October 2026 at 21:13 UTC

Saved by us

13 October 2026 at 21:13 UTC

Starting point

First saved record

Our first saved version of EXTENDED WARNING: Geomagnetic K-index of 4 expected. We have no earlier saved version to compare.

Bulletin issued: 13 October 2026 at 20:58 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "swpc:K04W:2026-10-13T20:58:58.750Z",
  "category": "solar",
  "title": "EXTENDED WARNING: Geomagnetic K-index of 4 expected",
  "occurredAt": "2026-10-13T20:58:58.750Z",
  "issuedAt": "2026-10-13T20:58:58.750Z",
  "timeBasis": "Bulletin issued",
  "place": "Space weather",
  "coordinates": null,
  "severity": "Bulletin",
  "status": "Published bulletin",
  "summary": "EXTENDED WARNING: Geomagnetic K-index of 4 expected · Extension to Serial Number: 5434 · Valid From: 2026 Oct 13 0115 UTC · Now Valid Until: 2026 Oct 14 1200 UTC · Warning Condition: Persistence · NOAA Space Weather Scale descriptions can be found at · www.swpc.noaa.gov/noaa-scales-explanation",
  "url": "https://www.swpc.noaa.gov/products/alerts-watches-and-warnings",
  "source": "swpc",
  "sourceName": "NOAA SWPC",
  "revision": "47045ef161de4065434ab824a4614a77496c63f9a03f7e23742e8cc85d559fa3"
}

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