NOAA NWS / Event history

Special Marine Warning issued October 17 at 3:37PM EDT until October 17 at 4:30PM EDT by NWS Miami FL

Special Marine Warning · Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM. Severe; likely; urgency: immediate.

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Bulletin issued: 17 October 2026 at 19:37 UTC
First saved by us: 17 October 2026 at 19:47 UTC
Last included in a daily record: 17 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 Miami FL · Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 17 October 2026 at 20:30 UTC
Forecast onset / end: 17 October 2026 at 19:37 UTC / 17 October 2026 at 20:30 UTC

Archived official description

SMWMFL The National Weather Service in Miami has issued a * Special Marine Warning for... Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM... Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM... * Until 430 PM EDT. * At 336 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Ocean Ridge to near Hillsboro Beach, moving northeast at 10 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Ocean Ridge, Palm Beach, Hypoluxo, Lighthouse Point, Hillsboro Beach, Gulf Stream, Delray Beach, Highland Beach, South Palm Beach, Manalapan, Briny Breezes, Boca Raton, Pompano Beach, and Deerfield Beach.

Instructions in this archived message

Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Report severe weather to the Coast Guard or the National Weather Service. You can also share your report with NWS Miami on Facebook and Twitter.

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 · 17 October 2026 at 19:47 UTC

Saved by us

17 October 2026 at 19:47 UTC

Starting point

First saved record

Our first saved version of Special Marine Warning issued October 17 at 3:37PM EDT until October 17 at 4:30PM EDT by NWS Miami FL. We have no earlier saved version to compare.

Bulletin issued: 17 October 2026 at 19:37 UTC

View saved version 1

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

{
  "id": "nws:78225129c2294a4430d2c8a7",
  "authorityId": "urn:oid:2.49.0.1.840.0.b076fb5a08aabe79189b3c1e4cc2a7789c83451a.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Special Marine Warning issued October 17 at 3:37PM EDT until October 17 at 4:30PM EDT by NWS Miami FL",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-17T19:37:00.000Z",
  "issuedAt": "2026-10-17T19:37:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T19:37:00.000Z",
  "onsetAt": "2026-10-17T19:37:00.000Z",
  "expiresAt": "2026-10-17T20:30:00.000Z",
  "forecastEndAt": "2026-10-17T20:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM",
  "coordinates": null,
  "issuer": "NWS Miami FL",
  "summary": "Special Marine Warning · Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM. Severe; likely; urgency: immediate.",
  "description": "SMWMFL\n\nThe National Weather Service in Miami has issued a\n\n* Special Marine Warning for...\nCoastal waters from Deerfield Beach to Ocean Reef FL out 20 NM...\nCoastal waters from Jupiter Inlet to Deerfield Beach FL out 20\nNM...\n\n* Until 430 PM EDT.\n\n* At 336 PM EDT, severe thunderstorms capable of producing\nwaterspouts were located along a line extending from near Ocean\nRidge to near Hillsboro Beach, moving northeast at 10 knots.\n\nHAZARD...Waterspouts and wind gusts 34 knots or greater.\n\nSOURCE...Radar.\n\nIMPACT...Waterspouts can easily overturn boats and create locally\nhazardous seas. Small craft could be damaged in briefly\nhigher winds and suddenly higher waves.\n\n* Locations impacted include...\nOcean Ridge, Palm Beach, Hypoluxo, Lighthouse Point, Hillsboro\nBeach, Gulf Stream, Delray Beach, Highland Beach, South Palm Beach,\nManalapan, Briny Breezes, Boca Raton, Pompano Beach, and Deerfield\nBeach.",
  "instruction": "Thunderstorms can produce sudden waterspouts. Waterspouts can easily\noverturn boats and create locally hazardous seas. Seek safe harbor\nimmediately.\n\nReport severe weather to the Coast Guard or the National Weather\nService. You can also share your report with NWS Miami on Facebook\nand Twitter.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b076fb5a08aabe79189b3c1e4cc2a7789c83451a.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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