Special Marine Warning for Biscayne Bay and Coastal Waters off Florida
This alert is no longer in effect.
NOAA issued it on May 13, 2026, 3 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.
A Special Marine Warning has been issued by NWS Miami FL for Biscayne Bay and coastal waters from Deerfield Beach to Ocean Reef, effective until 12:45 AM EDT on May 4, 2026, due to strong thunderstorms with wind gusts of 34 knots or greater.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Southeastern Florida Coastal Waters
- Issued
- May 13, 2026
- Issuing authority
- NWS Miami FL
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 3 months ago; use the issuing agency's live warning service for current conditions in Southeastern Florida Coastal Waters.
Special Marine Warning in Florida Coastal Waters
Alert Details
This Special Marine Warning was issued by the National Weather Service (NWS) Miami FL. It is effective from 12:06 AM EDT on May 4, 2026, until 12:45 AM EDT on the same day.
Affected Areas
The warning affects 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.
What You Should Do
Move to safe harbor until hazardous weather passes. Report severe weather to the Coast Guard or the National Weather Service.
Expected Conditions
Strong thunderstorms are moving east at 25 knots, with wind gusts of 34 knots or greater.
Timeline
The alert is effective from 12:06 AM EDT on May 4, 2026, and ends at 12:45 AM EDT on May 4, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (844 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 13, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.