Special Marine Warning Issued for Waters off Southeast Florida
This alert is no longer in effect.
NOAA issued it on May 20, 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.
NWS Miami has issued a Special Marine Warning for coastal waters from Deerfield Beach to Ocean Reef FL due to a severe thunderstorm capable of producing waterspouts.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Coastal Waters off Southeast Florida
- Issued
- May 20, 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 Coastal Waters off Southeast Florida.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Miami FL. The alert is effective from May 13, 2026 at 3:43 PM EDT until May 13, 2026 at 4:15 PM EDT.
Affected Areas
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 the 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
A severe thunderstorm capable of producing waterspouts was located 28 nm east of Sunny Isles, moving east at 10 knots. Hazards include waterspouts and wind gusts of 34 knots or greater.
Timeline
The warning is in effect from 3:43 PM EDT until 4:15 PM EDT on May 13, 2026. The severe thunderstorm will remain over mainly open waters.
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 (901 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 20, 2026.
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