Alert archive / Florida / Small Craft Advisories in 2018

Small Craft Advisory 49, NWS Key West, FL

December 21, 2018

NWS Key West, FL issued this small craft advisory at Dec 21, 2018, 5:09 PM EST. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Dec 21, 2018, 5:09 PM EST (22:09 UTC)
Expired
Dec 22, 2018, 10:22 PM EST
In force
29 hr
Issued by
NWS Key West, FL

The text

As transmitted.

329 
WHUS72 KKEY 212209
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
509 PM EST Fri Dec 21 2018

GMZ032>035-042>044-052>055-072>075-220615-
/O.CON.KKEY.GL.W.0002.000000T0000Z-181222T1000Z/
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico 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-
509 PM EST Fri Dec 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM EST SATURDAY...

* WINDS...Westerly winds 30 to 35 knots will prevail this 
  evening, with frequent gusts of 35 to 40 knots. 

* WAVES/SEAS...Steep seas will continue tonight, with the 
  highest seas 10 to 16 feet on the western Straits of Florida 
  and the deeper waters of the southeastern Gulf of Mexico and 5 
  to 8 feet on western Hawk Channel and the Gulf waters inside 
  five fathoms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

GMZ031-220615-
/O.NEW.KKEY.SC.Y.0049.181221T2209Z-181222T1000Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
509 PM EST Fri Dec 21 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST SATURDAY...

The National Weather Service in Key West has issued a Small Craft
Advisory, which is in effect until 5 AM EST Saturday. 

* WINDS...West to northwest winds near 25 to 30 knots will
  decrease to near 15 knots overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
5 follow-up statements
121 
WHUS72 KKEY 220315
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
1015 PM EST Fri Dec 21 2018

GMZ032>035-042>044-052>055-072>075-221000-
/O.CAN.KKEY.GL.W.0002.000000T0000Z-181222T1000Z/
/O.EXA.KKEY.SC.Y.0049.000000T0000Z-181222T1000Z/
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico 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-
1015 PM EST Fri Dec 21 2018

...SMALL CRAFT ADVISORY IN EFFECT...
...GALE WARNING IS CANCELLED...

The National Weather Service in Key West has issued a Small Craft
Advisory, which is in effect until 5 AM EST Saturday. The Gale
Warning has been cancelled. 

* WINDS...West to northwest winds near 25 knots with gusts to 30 
  to 35 knots will decrease to near 15 knots overnight. 

* WAVES/SEAS...Steep seas will continue tonight, with the 
  highest seas 10 to 16 feet on the western Straits of Florida 
  and the deeper waters of the southeastern Gulf of Mexico and 5 
  to 8 feet on western Hawk Channel and the Gulf waters inside 
  five fathoms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ031-221000-
/O.CON.KKEY.SC.Y.0049.000000T0000Z-181222T1000Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1015 PM EST Fri Dec 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT...

* WINDS...West to northwest winds near 20 knots will decrease to 
  near 15 knots overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
914 
WHUS72 KKEY 220929
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
429 AM EST Sat Dec 22 2018

GMZ031-032-042-043-221030-
/O.CAN.KKEY.SC.Y.0049.000000T0000Z-181222T1000Z/
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side 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 Craig Key to west end of Seven Mile Bridge out
to the reef-
429 AM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Key West has cancelled the Small
Craft Advisory. 

$$

GMZ033>035-044-052>055-072>075-221600-
/O.EXT.KKEY.SC.Y.0049.000000T0000Z-181222T1600Z/
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico 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 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-
429 AM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT...

* WINDS...Northwest winds 15 to 20 knots will decrease quickly
  this morning, to near 10 knots or less for most locations. 

* WAVES/SEAS...Large seas will continue today, with the highest
  seas of 7 to 11 feet across the Straits of Florida and the
  deeper waters of the southeastern Gulf of Mexico. Seas up to 7
  to 8 feet are expected within western Hawk Channel and the Gulf
  waters inside five fathoms, just west of the Marquesas Keys. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CLR
962 
WHUS72 KKEY 221502
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
1002 AM EST Sat Dec 22 2018

GMZ035-044-052-072-221615-
/O.CAN.KKEY.SC.Y.0049.000000T0000Z-181222T1600Z/
Gulf of Mexico 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 Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
1002 AM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Key West has cancelled the Small
Craft Advisory.

$$

GMZ033-034-053>055-073>075-222130-
/O.EXT.KKEY.SC.Y.0049.000000T0000Z-181222T2200Z/
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
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 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-
1002 AM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY IN EFFECT...

* WINDS...Northwest to northwest winds will decrease further to
  near 10 knots by later this aftenroon.

* WAVES/SEAS...Seas of 7 to 9 feet will persist in the lower
  Straits of Florida and extreme southeastern Gulf of Mexico,
  slowly subsiding this afternoon.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

$$

Kasper
934 
WHUS72 KKEY 222121
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
421 PM EST Sat Dec 22 2018

GMZ033-034-053>055-073>075-230400-
/O.EXT.KKEY.SC.Y.0049.000000T0000Z-181223T0400Z/
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
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 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-
421 PM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY IN EFFECT...

* WINDS...North winds near 10 knots or less will prevail tonight.

* WAVES/SEAS...Seas of 5 to 8 feet will persist in the lower
  Straits of Florida and extreme southeastern Gulf of Mexico,
  slowly subsiding below advisory criteria overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

$$
037 
WHUS72 KKEY 230322
MWWKEY

URGENT - Marine Weather Message
National Weather Service Key West FL
1022 PM EST Sat Dec 22 2018

GMZ033-034-053>055-073>075-230430-
/O.CAN.KKEY.SC.Y.0049.000000T0000Z-181223T0400Z/
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
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 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-
1022 PM EST Sat Dec 22 2018

...SMALL CRAFT ADVISORY HAS ENDED...

The National Weather Service in Key West has cancelled the Small
Craft Advisory. 

West swell has subsided below 7 feet. However, small craft should
exercise caution until seas subside further.

$$

The office that day

Everything else NWS Key West, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 21, 3:58 AM ESTWind AdvisoryKEYMonroe13 hr

Nearby

Small Craft Advisories in Florida, 2018Every small craft advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.