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NWS Miami FLMA.W 0309October 1, 2026

Special Marine Warning: Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM

The National Weather Service office in Miami issued a special marine warning for Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM, which was in force until 1:30 p.m. local time on October 1. It was the 309th special marine warning the NWS office in Miami issued in 2026.

ExpiredWarning

Issued12:51 p.m. EDT, October 1, 2026
In force12:51 p.m. EDT, October 1, 2026
Expired1:30 p.m. EDT, October 1, 2026

In force for 39 minutes; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Miami FL
Area
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM and Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM
Level
Warning
Issued
12:51 p.m. EDT, October 1, 2026
Expires
1:30 p.m. EDT, October 1, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KMFL MA.W 0309
Official source
National Weather Service: the notice at its source

NWS notices, October 2026The latest from the National Weather Service

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

SMWMFL The National Weather Service in Miami has issued a * Special Marine Warning for... Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM... Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM... * Until 130 PM EDT. * At 1251 PM EDT, a severe thunderstorm capable of producing waterspouts was located near Palm Beach Shores, moving northwest at 30 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... Riviera Beach, Ocean Ridge, Palm Beach, Jupiter Inlet, Hypoluxo, Jupiter Inlet Colony, Juno Beach, Gulf Stream, Palm Beach Shores, Jupiter, Delray Beach, Highland Beach, South Palm Beach, Manalapan, Tequesta, Briny Breezes, North Palm Beach, and Boca Raton.

What the agency told people to do

Move to safe harbor until hazardous weather passes. 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.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice