Severe Severe Storm ● Closed

Special Marine Warning — Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out

Event time: Last updated: Sep 19, 2026 United States
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Special Marine Warning issued September 10 at 4:59AM EDT until September 10 at 6:00AM EDT by NWS Key West FL

Measurements

Coordinates23.7940, -82.2160
RegionStraits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out; Straits of Florida from Halfmoon Shoal to 20 NM west of D
Nws UrgencyImmediate
Nws CertaintyLikely
Expires2026-09-10T06:00:00-04:00

Official source

Weather alert data courtesy of NOAA / National Weather Service

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by US National Weather Service.

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Source updated 39 days ago (Sep 10, 2026 09:35 UTC) · we last heard from US National Weather Service 20 seconds ago

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Nearby & related events

Special Marine Warning — Hawk Channel from Ocean Reef to Craig Key out to the reef; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Straits of Florida from Ocean Reef to Craig Key out 20 NM; Straits of Florida from Craig Severe Severe Storm United States active via NWS 22 hr ago Special Marine Warning — Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound; Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Hawk Channel from Ocean Reef to Craig Key out to the reef; Hawk Channel from Cr Severe Severe Storm United States active via NWS 1 day ago Special Marine Warning — Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out Severe Severe Storm United States active via NWS 1 day ago Special Marine Warning — Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM; Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out Severe Severe Storm United States active via NWS 1 day ago Special Marine Warning — Gulf of America including Dry Tortugas and Rebecca Shoal Channel Severe Severe Storm United States active via NWS 1 day ago

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.