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Ended official alertUpdated

Special Marine Warning for Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

For the following areas... Gulf Waters from East Cape Sable to Chokoloskee 20 to 60 nm out and beyond 5 fathoms... Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 fathoms... At 939 PM EDT, a strong thunderstorm was located 7 nm northeast of Ellis Rock Light, moving west at 20 knots....

What the bulletin says to do

Prepare for wind gusts in excess of 34 knots, steep and fast-building seas, frequent lightning strikes, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets.

Read official NWS bulletin

Full official description

Bulletin details

For the following areas... Gulf Waters from East Cape Sable to Chokoloskee 20 to 60 nm out and beyond 5 fathoms... Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 fathoms... At 939 PM EDT, a strong thunderstorm was located 7 nm northeast of Ellis Rock Light, moving west at 20 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...National Weather Service Meteorologist. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. The strong thunderstorm will remain over mainly open waters.

Lifecycle record

Official revisions

2 captured
  1. Update

    Special Marine Warning issued July 23 at 9:40PM EDT until July 23 at 10:00PM EDT by NWS Key West FL

    Official revision
  2. Alert

    Special Marine Warning issued July 23 at 9:25PM EDT until July 23 at 10:00PM EDT by NWS Key West FL

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Key West FL. This page reorganizes official fields and does not add a forecast or expand the affected area.

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Actual
Message type
Update
Last collected
Methodology and corrections