Small Craft Advisory 40, NWS Key West, FL

984 
WHUS72 KKEY 080312
MWWKEY

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
1012 PM EST WED DEC 7 2011

GMZ031>034-042>044-052>055-072>075-081115-
/O.CON.KKEY.SC.Y.0040.000000T0000Z-111208T1600Z/
FLORIDA BAY INCLUDING BLACKWATER AND BUTTONWOOD SOUNDS-
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO HALFMOON SHOAL OUT TO
5 FATHOMS-
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-
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-
1012 PM EST WED DEC 7 2011

...SMALL CRAFT ADVISORY IN EFFECT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR THE COASTAL WATERS OF
THE ATLANTIC...GULF OF MEXICO...AND FLORIDA BAY OVERNIGHT. 

* WINDS AND WAVES: IN WAKE OF A COLD FRONT...SUSTAINED NORTH SURFACE
  WINDS WILL INCREASE TO NEAR 20 KNOTS. ON THE WESTERN PORTION OF THE
  FLORIDA STRAITS AND ON OFFSHORE GULF OF MEXICO WATERS...SEAS OF UP
  TO 7 FEET ARE EXPECTED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...AND/OR
SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS CONDITIONS
FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$
BS

337 
WHUS72 KKEY 080900
MWWKEY

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
400 AM EST THU DEC 8 2011

GMZ031>034-042>044-052>055-072>075-081600-
/O.CON.KKEY.SC.Y.0040.000000T0000Z-111208T1600Z/
FLORIDA BAY INCLUDING BLACKWATER AND BUTTONWOOD SOUNDS-
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO HALFMOON SHOAL OUT TO
5 FATHOMS-
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-
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-
400 AM EST THU DEC 8 2011

...SMALL CRAFT ADVISORY IN EFFECT...

A SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH THE REST OF THIS
MORNING ACROSS THE COASTAL WATERS OF THE ATLANTIC...GULF OF
MEXICO...AND FLORIDA BAY.

* WINDS AND WAVES: IN WAKE OF A COLD FRONT...SUSTAINED NORTH SURFACE
  WINDS BETWEEN 20 AND 25 KNOTS...DECREASING TO 15 TO 20 KNOTS DURING
  THE AFTERNOON. SEAS OF 4 TO 7 FEET ARE EXPECTED ACROSS THE FLORIDA
  STRAITS...EXCEPT 5 TO 8 FEET IN A NORTHWEST SWELL ACROSS THE
  WESTERN PORTION OF THE FLORIDA STRAITS AND THE OFFSHORE GULF OF
  MEXICO WATERS. SEAS WILL BE HIGHER IN THE GULF STREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS...
AND/OR SEAS 7 FEET OR HIGHER...ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS FOR SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

FUTTERMAN

469 
WHUS72 KKEY 081523
MWWKEY

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
1023 AM EST THU DEC 8 2011

GMZ033-034-054-055-074-075-082100-
/O.CAN.KKEY.SC.Y.0040.000000T0000Z-111208T1600Z/
/O.NEW.KKEY.SW.Y.0014.111208T1523Z-111208T2100Z/
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 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 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-
1023 AM EST THU DEC 8 2011

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT...
...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A SMALL CRAFT
ADVISORY FOR HAZARDOUS SEAS FOR ON THE GULF WATERS BEYOND 20 NM WEST
OF MAINLAND MONROE COUNTY TO THE DRY TORTUGAS...AND THE WESTERN
STRAITS OF FLORIDA FROM SEVEN MILE BRIDGE TO 20 NM WEST OF THE DRY
TORTUGAS. THE SMALL CRAFT ADVISORY HAS BEEN CANCELLED.

* WINDS AND WAVES: IN WAKE OF A COLD FRONT...SUSTAINED NORTH SURFACE
  WINDS BETWEEN 15 AND 20 KNOTS...DECREASING TO NEAR 15 KNOTS DURING
  THE AFTERNOON. SEAS OF 4 TO 7 FEET ARE EXPECTED ACROSS THE FLORIDA
  STRAITS...EXCEPT 5 TO 8 FEET IN A NORTHWEST SWELL ACROSS THE
  WESTERN PORTION OF THE FLORIDA STRAITS AND THE OFFSHORE GULF OF
  MEXICO WATERS. SEAS WILL BE HIGHER IN THE GULF STREAM.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS MEANS THAT SEAS OF
7 FEET OR HIGHER ARE EXPECTED TO PRODUCE HAZARDOUS CONDITIONS FOR
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

GMZ031-032-042>044-052-053-072-073-081630-
/O.CAN.KKEY.SC.Y.0040.000000T0000Z-111208T1600Z/
FLORIDA BAY INCLUDING BLACKWATER AND BUTTONWOOD SOUNDS-
BAYSIDE AND GULF SIDE FROM CRAIG KEY 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 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-
1023 AM EST THU DEC 8 2011

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS CANCELLED THE SMALL
CRAFT ADVISORY...WHICH WAS IN EFFECT FOR THE COASTAL WATERS OF HAWK
CHANNEL...THE FLORIDA STRAITS FROM OCEAN REEF TO THE WEST END OF
SEVEN MILE BRIDGE...FLORIDA BAY AND THE GULF SIDE AND BAY SIDE WATERS
NORTH OF THE MIDDLE AND LOWER KEYS.

WINDS AND SEAS IN THESE LOCATIONS HAVE DROPPED BELOW CRITERIA FOR A
SMALL CRAFT ADVISORY. HOWEVER...SMALL CRAFT SHOULD STILL EXERCISE
CAUTION IN FLORIDA STRAITS OVERNIGHT FOR SUSTAINED NORTHEAST TO EAST
WINDS OF 15 TO 20 KNOTS AND SEAS UP TO SIX FEET IN THE GULF STREAM.

$$

BWC

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
347 PM EST WED DEC 7 2011

.DISCUSSION...
.CURRENTLY...
THE KBYX RADAR SHOWS A LINE OF SHOWERS SOUTHEAST OF THE MIDDLE AND
UPPER KEYS...ALL OTHER RETURNS ARE AP. WINDS ARE MAINLY OUT OF THE
NORTH TO NORTHWEST AT 5 TO 10 KNOTS ACROSS THE KEYS AT THIS HOUR.
SATELLITE INTERROGATION SHOWS AN ADVANCING COLD FRONT CROSSING THE
GULF OF MEXICO TOWARD THE KEYS. RECENT OBSERVATIONS FROM THE BUOY
200 NM WEST OF NAPLES HAVE INCREASED WINDS TO 26 KNOTS WITH GUSTS
NEAR 30 KNOTS OVER THE PAST 3 HOURS WITH FROPA. THE BUOY JUST WEST OF
NAPLES HAS YET TO WITNESS THE FRONT AS WINDS ARE 5 TO 10 KNOTS. A
RECENT SCATTEROMETER PASS OVER THE CENTRAL GULF REPORTS 25 TO 30
KNOTS BEHIND TO FRONT.

.SHORT TERM (TONIGHT THROUGH FRIDAY)...
A STRONG SHORT WAVE PIVOTING THROUGH THE DEEP SOUTH IS DRIVING A
SURFACE FRONT ACROSS THE EASTERN GULF OF MEXICO. THE FRONT WILL BE
ON OUR DOOR STEP JUST AFTER SUNSET WITH FROPA AROUND MIDNIGHT IN THE
LOWER KEYS. VARIABLE WINDS TODAY WILL TURN NORTHWEST TO NORTH THIS
AFTERNOON WITH A DRAMATIC INCREASE IN WINDS TONIGHT. THE SUPPORT FOR
THE SURFACE FEATURE WILL MOVE WELL NORTH OF THE AREA SO OTHER THAN
WINDS AND COLD AIR ADVECTION...IMPACTS WILL BE LIMITED. 1000 TO 850
MB THICKNESS INDICATES A 20 DECAMETER CHANGE IN THICKNESS WITH COLD
AIR ADVECTION. THE COOLEST NIGHT WILL BE TONIGHT WITH LOW TO MIDDLE
60S...WHILE HIGHS STRUGGLE TO REACH 70 ON THURSDAY. WINDS WILL RELAX
THURSDAY EVENING INTO FRIDAY WITH TEMPERATURES REBOUNDING TO NEAR
NORMALS. THE REMNANT FRONT WILL RETREAT BACK OVER THE KEYS FRIDAY
NIGHT WITH ZONAL FLOW ALOFT...EXPECT SLIGHTLY MORE SHOWER ACTIVITY
DUE TO A FAVORABLE THETA PROFILE...ABOVE NORMAL MOISTURE...AND
NORTHEASTERLY FLOW. A SEA SWELL IS ACCOMPANYING THE WIND SURGE BEHIND
THE FRONT MAINLY FOR THE WESTERN MARINE AND GULF ZONES.

&&

.LONG TERM (SATURDAY THROUGH WEDNESDAY)...
THE THETA PROFILE REMAINS FAVORABLE FOR SOME LOW TOPPED SHOWERS
SATURDAY THROUGH MONDAY IN THE EASTERLY FLOW AND WILL CONTINUE THE
SLIGHT CHANCE...20 PERCENT...POPS THROUGH MONDAY. A RIDGE BUILDS IN
OVER THE SOUTHEASTERN UNITED STATES MONDAY NIGHT AND TUESDAY CAUSING
THE PRESSURE GRADIENT TO TIGHTEN AND WINDS TO FRESHEN THROUGH
THURSDAY.

&&

.MARINE...
A COLD FRONT WILL CROSS THE KEYS OVERNIGHT AND FRESHEN WINDS. A
SMALL CRAFT ADVISORIES FOR ALL KEYS WATERS WILL BEGIN THIS
EVENING...EXTENDING THROUGH AT LEAST THURSDAY AFTERNOON. EXPECT WINDS
TO DECREASE SOMEWHAT THURSDAY AFTERNOON WITH MODERATE NORTHEAST
FLOW CONTINUING FROM THURSDAY NIGHT THROUGH THE WEEKEND. CAUTIONARY
STATEMENTS...ESPECIALLY OVER THE STRAITS ARE POSSIBLE THROUGH THE
WEEKEND.

&&

.AVIATION...
THROUGH 12Z THURSDAY...VFR CONDITIONS WILL PREVAIL AT THE KEY WEST
AND MARATHON TERMINALS UNTIL AROUND 03Z...BEFORE A COLD FRONT
ACCOMPANIED BY MVFR CEILINGS OF AROUND 1500 FEET OVERSPREAD OUR AREA
INTO THE OVERNIGHT HOURS. IN ADDITION...MOSTLY NORTH WINDS OF 10
KNOTS OR LESS WILL INCREASE TO BETWEEN 13 AND 17 KNOTS WITH GUSTS
NEAR 25 KNOTS FROM LATE TONIGHT INTO EARLY THURSDAY MORNING. BECAUSE
OF THESE WINDS...MODERATE TO STRONG CROSSWINDS WILL BE
EXPERIENCED.

&&

.CLIMATE...
KEYS WEATHER DATELINE...1937...THE LOW TEMPERATURE IN KEY WEST WAS 50
DEGREES...SETTING THE DAILY RECORD MINIMUM TEMPERATURE FOR KEY WEST
ON DECEMBER 7TH...PEARL HARBOR DAY...WHICH STANDS 74 YEARS LATER.

&&

.PRELIMINARY POINT TEMPS/POPS...
KEY WEST  65  70  66  77 / 10 -  10 20
MARATHON  63  71  66  78 / 10 -  10 20

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GM...NONE.
&&

PUBLIC/MARINE.........BWC
AVIATION/NOWCASTS.....APA
DATA COLLECTION.......ULRICH

VISIT US ON THE WEB AT WWW.WEATHER.GOV/KEYWEST

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KEY WEST FL
423 AM EST WED DEC 7 2011

FLZ076>078-GMZ031>034-042>044-052>055-072>075-081100-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-
FLORIDA BAY INCLUDING BLACKWATER AND BUTTONWOOD SOUNDS-
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO HALFMOON SHOAL OUT TO
5 FATHOMS-
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-
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-
423 AM EST WED DEC 7 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE FLORIDA KEYS AND
ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED FOR TODAY.

SMALL CRAFT ADVISORIES MAY BE REQUIRED FOR MUCH OR ALL OF THE KEYS
COASTAL WATERS TONIGHT...DUE TO NORTH WINDS EXPECTED TO INCREASE
TO AROUND 20 KNOTS BEHIND A COLD FRONT MOVING THROUGH THE AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SMALL CRAFT ADVISORIES MAY BE REQUIRED FOR PORTIONS OF THE KEYS
COASTAL WATERS THURSDAY. SMALL CRAFT ADVISORIES FOR HAZARDOUS
SEAS MAY BE REQUIRED FOR THE WESTERN FLORIDA STRAITS THURSDAY NIGHT.

OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.