Special Marine Warning Issued for Biscayne Bay and Coastal Florida Waters
This alert is no longer in effect.
NOAA issued it on April 2, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Special Marine Warning for Biscayne Bay and coastal waters until 3:00 PM EDT as a severe thunderstorm capable of producing waterspouts moves through the area.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- South Florida Coastal Waters
- Issued
- April 2, 2026
- Issuing authority
- NWS Miami
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in South Florida Coastal Waters.
Alert Details
The National Weather Service in Miami has issued a Special Marine Warning (VTEC: /O.NEW.KMFL.MA.W.0034.260315T1837Z-260315T1900Z/) for coastal waters in South Florida. The alert was issued at 2:37 PM EDT following radar detection of a severe thunderstorm.
Affected Areas
The warning covers the following geographic regions:
- Biscayne Bay
- Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
- Specific locations impacted include Pacific Reef, Elliott Key, Soldier Key, Triumph Reef, and Biscayne Bay.
What You Should Do
Mariners and residents in the affected areas should take the following actions:
- Move to safe harbor immediately and remain there until the hazardous weather passes.
- Be aware that thunderstorms can produce sudden waterspouts which can easily overturn boats and create locally hazardous seas.
- Report any severe weather observations to the Coast Guard or the National Weather Service in Miami via phone or social media.
Expected Conditions
At 2:37 PM EDT, a severe thunderstorm was located over Pacific Reef, moving north at 20 knots. The following hazards are expected:
- Waterspouts: Capable of overturning boats and creating dangerous sea conditions.
- Wind: Gusts of 34 knots or greater.
- Waves: Small craft could be damaged by briefly higher winds and suddenly higher waves.
Timeline
The alert is effective immediately as of 2:37 PM EDT on March 15, 2026. The warning is currently scheduled to expire at 3:00 PM EDT.
Original source: NOAA Official Notice ↗
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