NOAA NWS / Event history

Special Marine Warning issued October 20 at 3:04AM AKDT until October 20 at 3:30AM AKDT by NWS Juneau AK

Special Marine Warning · Glacier Bay; Icy Strait; Cross Sound; Cape Spencer to Cape Fairweather out to 15 NM. Severe; likely; urgency: immediate.

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Bulletin issued: 20 October 2026 at 11:04 UTC
First saved by us: 20 October 2026 at 11:17 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: Severe · Source alert

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

Issuer / area: NWS Juneau AK · Glacier Bay; Icy Strait; Cross Sound; Cape Spencer to Cape Fairweather out to 15 NM
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 20 October 2026 at 11:30 UTC
Forecast onset / end: 20 October 2026 at 11:04 UTC / 20 October 2026 at 11:30 UTC

Archived official description

SMWAJK The National Weather Service in Juneau has issued a * Special Marine Warning for... Glacier Bay... Icy Strait... Cross Sound... Cape Spencer to Cape Fairweather out to 15 NM... * Until 330 AM AKDT. * At 304 AM AKDT, a strong thunderstorm was located 11 NM north of Lemesurier Island, or 10 NM northwest of Point Gustavus, and is stationary. HAZARD...Wind gusts to 40 knots. SOURCE...Satellite imagery indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Lone Island, Inian Island, Lemesurier Island, Elfin Cove, Muir Point, Point Gustavus, Bartlett Cove, Port Althorp, Three Hill Island, Cape Spencer, Graves Harbor and Yakobi Rock.

Instructions in this archived message

Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.

The saved record

What changed

0 updates · 1 first record

Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.

First saved record · 20 October 2026 at 11:17 UTC

Saved by us

20 October 2026 at 11:17 UTC

Starting point

First saved record

Our first saved version of Special Marine Warning issued October 20 at 3:04AM AKDT until October 20 at 3:30AM AKDT by NWS Juneau AK. We have no earlier saved version to compare.

Bulletin issued: 20 October 2026 at 11:04 UTC

View saved version 1

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

{
  "id": "nws:6517030cb3794e6a68995e32",
  "authorityId": "urn:oid:2.49.0.1.840.0.a0ce1e7182c5bdf49ecbeb2908192ad4208ad94f.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Special Marine Warning issued October 20 at 3:04AM AKDT until October 20 at 3:30AM AKDT by NWS Juneau AK",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-20T11:04:00.000Z",
  "issuedAt": "2026-10-20T11:04:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-20T11:04:00.000Z",
  "onsetAt": "2026-10-20T11:04:00.000Z",
  "expiresAt": "2026-10-20T11:30:00.000Z",
  "forecastEndAt": "2026-10-20T11:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Glacier Bay; Icy Strait; Cross Sound; Cape Spencer to Cape Fairweather out to 15 NM",
  "coordinates": null,
  "issuer": "NWS Juneau AK",
  "summary": "Special Marine Warning · Glacier Bay; Icy Strait; Cross Sound; Cape Spencer to Cape Fairweather out to 15 NM. Severe; likely; urgency: immediate.",
  "description": "SMWAJK\n\nThe National Weather Service in Juneau has issued a\n\n* Special Marine Warning for...\nGlacier Bay...\nIcy Strait...\nCross Sound...\nCape Spencer to Cape Fairweather out to 15 NM...\n\n* Until 330 AM AKDT.\n\n* At 304 AM AKDT, a strong thunderstorm was located 11 NM north of\nLemesurier Island, or 10 NM northwest of Point Gustavus, and is\nstationary.\n\nHAZARD...Wind gusts to 40 knots.\n\nSOURCE...Satellite imagery indicated.\n\nIMPACT...Small craft could be damaged in briefly higher winds and\nsuddenly higher waves.\n\n* Locations impacted include...\nLone Island, Inian Island, Lemesurier Island, Elfin Cove, Muir\nPoint, Point Gustavus, Bartlett Cove, Port Althorp, Three Hill\nIsland, Cape Spencer, Graves Harbor and Yakobi Rock.",
  "instruction": "Move to safe harbor until hazardous weather passes.\n\nFrequent lightning is occurring with this storm. If caught on the\nopen water stay below deck if possible, keep away from ungrounded\nmetal objects.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a0ce1e7182c5bdf49ecbeb2908192ad4208ad94f.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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