Severe Severe Storm ● Closed

Special Marine Warning — Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Straits of Florida from west end of Seven Mile Bridge t

Event time: Aug 20, 2026 21:57 UTC Last updated: Sep 6, 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 August 20 at 5:57PM EDT until August 20 at 6:30PM EDT by NWS Key West FL

Measurements

Coordinates	24.4960, -81.8380
Region	Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal ou
Expires	2026-08-20T18:30:00-04:00
Nws Urgency	Immediate
Nws Certainty	Likely

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 60 days ago (Aug 20, 2026 22:20 UTC) · we last heard from US National Weather Service 19 seconds ago

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Earlier severe storm events in United States

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Nearby & related events

Flood Warning — Lake, FL; Volusia, FL Severe Flood United States active via NWS 8 hr ago Flood Warning — Lake, FL; Volusia, FL Severe Flood United States active via NWS 21 hr ago 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 Flood Warning — Lake, FL; Volusia, FL Severe Flood 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.