NOAA NWS / Event history

Special Marine Warning issued October 17 at 8:41PM EDT until October 17 at 9:30PM EDT by NWS Key West FL

Special Marine Warning · Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms. Severe; likely; urgency: immediate.

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Bulletin issued: 18 October 2026 at 00:41 UTC
First saved by us: 18 October 2026 at 00:47 UTC
Last included in a daily record: 18 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 Key West FL · Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 18 October 2026 at 01:30 UTC
Forecast onset / end: 18 October 2026 at 00:41 UTC / 18 October 2026 at 01:30 UTC

Archived official description

SMWKEY The National Weather Service in Key West has issued a * Special Marine Warning for... Bay and Gulf Side from Craig Key to Halfmoon Shoal out to 5 fathoms... * Until 930 PM EDT. * At 841 PM EDT, a strong thunderstorm was located near Content Keys, moving east at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...National Weather Service Meteorologist. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. * Locations in the warning include... Content Keys and Horseshoe Key.

Instructions in this archived message

Boaters should seek safe harbor as quickly, and as safely as possible. When downpours reduce visibility, slow down.

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 · 18 October 2026 at 00:47 UTC

Saved by us

18 October 2026 at 00:47 UTC

Starting point

First saved record

Our first saved version of Special Marine Warning issued October 17 at 8:41PM EDT until October 17 at 9:30PM EDT by NWS Key West FL. We have no earlier saved version to compare.

Bulletin issued: 18 October 2026 at 00:41 UTC

View saved version 1

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

{
  "id": "nws:71bc8b0e80de57cc35b4c4c4",
  "authorityId": "urn:oid:2.49.0.1.840.0.ab1cf41511d9f67dd36c28f29fdfafa1311b970d.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Special Marine Warning issued October 17 at 8:41PM EDT until October 17 at 9:30PM EDT by NWS Key West FL",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-18T00:41:00.000Z",
  "issuedAt": "2026-10-18T00:41:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-18T00:41:00.000Z",
  "onsetAt": "2026-10-18T00:41:00.000Z",
  "expiresAt": "2026-10-18T01:30:00.000Z",
  "forecastEndAt": "2026-10-18T01:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms",
  "coordinates": null,
  "issuer": "NWS Key West FL",
  "summary": "Special Marine Warning · Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms. Severe; likely; urgency: immediate.",
  "description": "SMWKEY\n\nThe National Weather Service in Key West has issued a\n\n* Special Marine Warning for...\nBay and Gulf Side from Craig Key to Halfmoon Shoal out to 5\nfathoms...\n\n* Until 930 PM EDT.\n\n* At 841 PM EDT, a strong thunderstorm was located near Content Keys,\nmoving east at 10 knots.\n\nHAZARD...Wind gusts 34 knots or greater.\n\nSOURCE...National Weather Service Meteorologist.\n\nIMPACT...Expect wind gusts in excess of 34 knots, suddenly higher\nwaves, frequent lightning, and heavy downpours.\n\n* Locations in the warning include...\nContent Keys and Horseshoe Key.",
  "instruction": "Boaters should seek safe harbor as quickly, and as safely as\npossible. When downpours reduce visibility, slow down.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ab1cf41511d9f67dd36c28f29fdfafa1311b970d.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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