Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued November 1 at 10:20AM EST until November 1
Affecting Biscayne Bay; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
In effect until: Nov 1, 2026, 3:45 PM
Biscayne Bay; Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
Likely impact; effects through 3:45 PM.
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.
Affected areas
Miami
Read the original bulletin (official text)
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... * Until 1045 AM EST. * At 1020 AM EST, a severe thunderstorm capable of producing waterspouts was located over Miami Beach, moving west at 10 knots. HAZARD...Waterspouts and wind gusts to 40 knots. 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, Key Biscayne, Cape Florida, Virginia Key, Bay Harbor Islands, Miami Beach, Bal Harbour, Golden Beach, Surfside, Coral Gables, North Bay Village, Indian Creek, and Hallandale.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™