Watches, Warnings & Advisories



2 products found for Marine Zone: GMZ043

Small Craft Advisory

URGENT - MARINE WEATHER MESSAGE
National Weather Service Key West FL
428 PM EST Sat Nov 29 2025

GMZ031>035-042>044-052>055-072>075-300530-
/O.EXT.KKEY.SC.Y.0037.000000T0000Z-251130T1000Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulfside from Craig Key to west end of Seven Mile
Bridge-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
Gulf of America from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
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-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
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-
428 PM EST Sat Nov 29 2025

...SMALL CRAFT ADVISORY IN EFFECT...

* WHAT...Northeast to east winds 20 to 25 kt with gusts up to 30
  kt and seas 7 to 10 ft, highest across the Straits of Florida.

* WHERE...Straits of Florida, Hawk Channel, Gulf waters
  including the Dry Tortugas, and Florida Bay.

* WHEN...In Effect.

* IMPACTS...A Small Craft Advisory means that wind speeds of 20
  to 33 knots, or seas of 7 feet or greater, are expected to
  produce hazardous conditions for small craft. These hazardous
  conditions may result in poor vessel handling and steering
  response, broaching, overturned dinghies and kayaks, slips and
  falls on slippery decks, rub damage along docks and seawalls,
  swamped bows at reef tract mooring balls, and dragging anchors.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced boaters, especially those with smaller vessels,
should avoid operating in these conditions.

&&

$$




Short Term Forecast

Short Term Forecast
National Weather Service Key West FL
553 PM EST Sat Nov 29 2025

FLZ076>078-GMZ031-032-035-042>044-052>055-072>075-300000-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood
Sound-
Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge-
Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal
out to 5 Fathoms-
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-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile Bridge
out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas
out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile Bridge
20 to 60 NM out-
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-
Including the Communities of Key Largo, Marathon, and Key West
553 PM EST Sat Nov 29 2025

.NOW...
Through 700 pm, scattered light to moderate showers spread across
Keys nearshore waters and the Florida Straits will move westward at
near 15 knots, with some shower activity crossing areas of the Island
Chain. While thunderstorm activity is not likely with these showers,
an isolated lightning strike or two cannot be ruled out with the
strongest activity, currently located just south of Big Pine Key.
Rainfall accumulations of up to a few hundreths of an inch can be
expected over the Islands where showers cross.

$$

MC