NWS Miami FLMA.W 0308October 1, 2026
Special Marine Warning: Biscayne Bay, Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM and Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters
The National Weather Service office in Miami issued a special marine warning for Biscayne Bay, Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM and Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas, which was in force until 11:30 a.m. local time on October 1. It was the 308th special marine warning the NWS office in Miami issued in 2026.
ExpiredWarning
In force for 1 hour; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Miami FL
- Area
- Biscayne Bay, Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM and Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas
- Level
- Warning
- Issued
- 10:29 a.m. EDT, October 1, 2026
- Expires
- 11:30 a.m. EDT, October 1, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KMFL MA.W 0308
- 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... Biscayne Bay... Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM... Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas... * Until 1130 AM EDT. * At 1029 AM EDT, a severe thunderstorm capable of producing waterspouts was located 12 nm east of Cape Florida, 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... Sunny Isles, Lauderdale-By-The-Sea, Key Biscayne, Hallandale, Fort Lauderdale, Cape Florida, Virginia Key, Bay Harbor Islands, Soldier Key, Port Everglades, Miami Beach, Sea Ranch Lakes, Bal Harbour, Triumph Reef, Golden Beach, Surfside, North Bay Village, Indian Creek, Pompano Beach, and Hollywood.
What the agency told people to do
Move to safe harbor until hazardous weather passes. 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.
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.