NOAA NWS / Event history

Special Marine Warning issued October 17 at 3:46PM EDT until October 17 at 4:45PM EDT by NWS Melbourne FL

Special Marine Warning · Sebastian Inlet to Jupiter Inlet 0-20 nm. Severe; likely; urgency: immediate.

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Bulletin issued: 17 October 2026 at 19:46 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 Melbourne FL · Sebastian Inlet to Jupiter Inlet 0-20 nm
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 17 October 2026 at 20:45 UTC
Forecast onset / end: 17 October 2026 at 19:46 UTC / 17 October 2026 at 20:45 UTC

Archived official description

SMWMLB The National Weather Service in Melbourne has issued a * Special Marine Warning for... Sebastian Inlet to Jupiter Inlet 0-20 nm... * Until 445 PM EDT. * At 346 PM EDT, a severe thunderstorm capable of producing waterspouts was located near Jupiter Inlet Colony, moving north at 5 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can can quickly form and capsize boats, damage vessels and create locally hazardous seas. Make sure all on board are wearing life jackets. Expect wind gusts in excess of 34 knots, suddenly higher waves, lightning and heavy downpours. Make sure all on board are wearing life jackets. Return to safe harbor if possible. * Locations impacted include... Jupiter Inlet Colony, Jupiter Inlet, Jupiter Island, Hobe Sound Beach, and Tequesta.

Instructions in this archived message

Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.

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 3:46PM EDT until October 17 at 4:45PM EDT by NWS Melbourne FL. We have no earlier saved version to compare.

Bulletin issued: 17 October 2026 at 19:46 UTC

View saved version 1

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

{
  "id": "nws:9e22b5fdc96b71ae7f6fba55",
  "authorityId": "urn:oid:2.49.0.1.840.0.7fb70849bc6c7b0eacf99c7d185fe860408bc695.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Special Marine Warning issued October 17 at 3:46PM EDT until October 17 at 4:45PM EDT by NWS Melbourne FL",
  "eventType": "Special Marine Warning",
  "occurredAt": "2026-10-17T19:46:00.000Z",
  "issuedAt": "2026-10-17T19:46:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T19:46:00.000Z",
  "onsetAt": "2026-10-17T19:46:00.000Z",
  "expiresAt": "2026-10-17T20:45:00.000Z",
  "forecastEndAt": "2026-10-17T20:45:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Sebastian Inlet to Jupiter Inlet 0-20 nm",
  "coordinates": null,
  "issuer": "NWS Melbourne FL",
  "summary": "Special Marine Warning · Sebastian Inlet to Jupiter Inlet 0-20 nm. Severe; likely; urgency: immediate.",
  "description": "SMWMLB\n\nThe National Weather Service in Melbourne has issued a\n\n* Special Marine Warning for...\nSebastian Inlet to Jupiter Inlet 0-20 nm...\n\n* Until 445 PM EDT.\n\n* At 346 PM EDT, a severe thunderstorm capable of producing\nwaterspouts was located near Jupiter Inlet Colony, moving north at\n5 knots.\n\nHAZARD...Waterspouts and wind gusts 34 knots or greater.\n\nSOURCE...Radar.\n\nIMPACT...Waterspouts can can quickly form and capsize boats,\ndamage vessels and create locally hazardous seas. Make\nsure all on board are wearing life jackets. Expect wind\ngusts in excess of 34 knots, suddenly higher waves,\nlightning and heavy downpours. Make sure all on board are\nwearing life jackets. Return to safe harbor if possible.\n\n* Locations impacted include...\nJupiter Inlet Colony, Jupiter Inlet, Jupiter Island, Hobe Sound\nBeach, and Tequesta.",
  "instruction": "Move to safe harbor immediately as gusty winds and high waves are\nexpected.\n\nThunderstorms can produce sudden waterspouts. Waterspouts can easily\noverturn boats and create locally hazardous seas. Seek safe harbor\nimmediately.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7fb70849bc6c7b0eacf99c7d185fe860408bc695.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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