Small Craft Advisory 30, NWS Key West, FL

563 
WHUS72 KKEY 130206
MWWKEY

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
1006 PM EDT WED SEP 12 2012

GMZ031>034-130900-
/O.EXA.KKEY.SC.Y.0030.000000T0000Z-120913T1000Z/
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-
1006 PM EDT WED SEP 12 2012

...SMALL CRAFT ADVISORY IN EFFECT...

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A SMALL CRAFT
ADVISORY FOR FLORIDA BAY...THE NEARSHORE GULF SIDE WATERS FROM CRAIG
KEY TO HALFMOON SHOAL OUT TO 5 FATHOMS...THE OFFSHORE GULF WATERS 20
TO 60 NM OFFSHORE OF MAINLAND MONROE AND BEYOND 5 FATHOMS...AND THE
SOUTHEASTERN GULF OF MEXICO WATERS INCLUDING THE DRY TORTUGAS AND
REBECCA SHOAL CHANNEL.

* WINDS AND WAVES...NORTHEAST TO EAST WINDS AROUND 20 KNOTS WILL
  PERSIST THROUGH THE OVERNIGHT HOURS. 

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.

&&

$$

GMZ042>044-052>055-072>075-130900-
/O.CON.KKEY.SC.Y.0030.000000T0000Z-120913T1000Z/
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-
1006 PM EDT WED SEP 12 2012

...SMALL CRAFT ADVISORY IN EFFECT...

* WINDS AND WAVES...NORTHEAST TO EAST WINDS AROUND 20 KNOTS WILL 
  PERSIST THROUGH THE OVERNIGHT HOURS. SEAS OF 4 TO 7 FEET ARE 
  EXPECTED ACROSS THE FLORIDA STRAITS. 

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.

&&

$$

DAF

119 
WHUS72 KKEY 130824
MWWKEY

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE KEY WEST FL
424 AM EDT THU SEP 13 2012

GMZ031>034-042>044-052>055-072>075-130930-
/O.CAN.KKEY.SC.Y.0030.000000T0000Z-120913T1000Z/
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-
424 AM EDT THU SEP 13 2012

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS THE KEYS COASTAL WATERS
TODAY...DUE TO EAST WINDS OF 15 TO 20 KNOTS...AND SEAS OF 4 TO 6 FEET
ON THE FLORIDA STRAITS BEYOND THE REEF.

$$

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
330 PM EDT WED SEP 12 2012

.DISCUSSION...
.CURRENTLY...
SKIES ARE PARTLY TO MOSTLY CLOUDY WITH LOCAL RADARS DETECTING A
DIMINISHING AREA OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
OVER THE NEARSHORE AND OFFSHORE WATERS SOUTH OF THE LOWER
KEYS...BETWEEN THE MARQUESAS KEYS AND DRY TORTUGAS. SURFACE WISE...A
NEBULOUS TROUGH LIES ACROSS THE FLORIDA STRAITS SOUTH OF THE ISLAND
CHAIN...WITH A STRENGTHENING REGION OF HIGH PRESSURE (1030 MB)
CENTERED OVER THE DELMARVA PENINSULA. THIS AREA OF HIGH PRESSURE
EXTENDS DOWN THE EASTERN SEABOARD AND INTO THE SUNSHINE STATE.
ACROSS OUR MARINE DISTRICT...C-MAN STATION PLATFORM OBSERVATIONS
INDICATE NORTHEAST TO EAST WINDS OF 15 TO 20 KNOTS WITH HIGHER
GUSTS.

.SHORT TERM (TONIGHT THROUGH FRIDAY)...
THE SWATH OF HIGHER MOISTURE ASSOCIATED WITH LOW LEVEL SPEED
CONFLUENCE IN THE STRAITS AND THE ADJACENT BAHAMIAN CHAIN AND
EXTREME SOUTHEAST GULF OF MEXICO THIS EVENING...SHOULD EXPAND
NORTHWARD OVER THE NEXT 24 TO 48 HOURS. WITH AN ABUNDANCE OF
MOISTURE( PWAT NEAR 2.0 INCHES) AND LITTLE IF ANY CONVECTIVE
INHIBITION...ADDITIONAL LOW LEVEL CONVERGENCE WILL PROMPT WELL ABOVE
AVERAGE POPS WHICH ARE STILL ABOVE MOS GUIDANCE POPS. CHANGEABLE
SKIES WILL KEEP HIGH TEMPERATURES IN THE MID TO UPPER 80S WITH
OVERNIGHT LOWS BETWEEN 75 TO 80 DUE TO PERIODIC SPELLS OF RAINFALL.

&&

.LONG TERM (FRIDAY NIGHT THROUGH WEDNESDAY)...
A MID AND UPPER LEVEL ANTICYCLONE WILL SLOWLY BUILD OVER THE
SOUTHEAST UNITED STATES AND FLORIDA PENINSULA THIS WEEKEND AND EARLY
NEXT WEEK...BEFORE A MID LATITUDE TROUGH TRANSLATES EASTWARD AND
ACROSS THE GULF OF MEXICO AND NORTHERN HALF OF THE FLORIDA PENINSULA
BY LATE WEDNESDAY. WITH THE PROGRESSIVE FLOW ALOFT...SURFACE HIGH
PRESSURE NORTH OF OUR AREA WILL BE SQUELCHED DOWN THE SUNSHINE
STATE. DESPITE PWAT VALUES OF 2 INCHES OR LESS THROUGH MOST OF THE
PERIOD...DO NOT SEE ANY DISCERNIBLE LOW LEVEL CONFLUENCE OR UPPER
LEVEL ASCENT TO JUSTIFY GOING ABOVE LOW CHANCE CLIMO POPS FOR NOW.
TEMPERATURE WISE...SEE NO REASON TO STRAY FROM DAYTIME HIGHS IN THE
UPPER 80S WITH OVERNIGHT LOWS NEAR 80 DEGREES.

&&

.MARINE...
MODERATE TO FRESH NORTHEAST TO EAST BREEZES EXCEPT SLIGHTLY LOWER
BEYOND 40 TO 50 NM SOUTH OF THE ISLAND CHAIN WILL PERSIST THROUGH
TONIGHT...BEFORE WINDS SLACKEN FROM SOUTH TO NORTH ON THURSDAY.
MODERATE EAST WINDS WILL PREVAIL ON MOST OF KEYS COASTAL WATERS LATE
THURSDAY AND PERSIST INTO EARLY FRIDAY...BEFORE GENTLE TO MODERATE
EAST WINDS GOVERN OUR MARINE DISTRICT THIS WEEKEND. BUT UNTIL
THEN...AN EXERCISE CAUTION HEADLINE WILL BE MAINTAINED FOR ALL KEYS
COASTAL WATERS TONIGHT. AND AS USUAL...WINDS AND SEAS WILL BE HIGHER
NEAR SHOWERS AND THUNDERSTORMS.

&&

.AVIATION...
VFR CONDITIONS ARE EXPECTED TO CONTINUE AT BOTH THE KEY WEST
INTERNATIONAL AND MARATHON ISLAND TERMINALS THROUGH 13/18Z. BRIEF
PERIODS OF MVFR CEILINGS AND VISIBILITIES ARE LIKELY AS FAST MOVING
SHOWERS CROSS THE AREA FROM EAST TO WEST. HAVE PLACE VICINITY
SHOWERS IN THE TAF DUE TO THE LARGE RIDGE LIFTING
NORTHEAST...ALLOWING THE HIGHER MOISTURE TO MOVE NORTH OVER THE
ISLAND CHAIN OVERNIGHT. WILL AMEND IF THERE ARE LONGER DURATION
EVENTS PRESENTED IN RADAR TRENDS. EXPECT BRIEF PERIODS GUSTS OF 20
TO 25 KNOTS SI SHOWERS CROSS THE TERMINALS.

&&

.CLIMATE...
KEY WEATHER DATELINE...1948...THE LOW TEMPERATURE IN KEY WEST WAS 72
DEGREES SETTING THE RECORD DAILY MINIMUM TEMPERATURE FOR KEY WEST ON
SEPTEMBER 12TH. IN 1924 THE DAILY RECORD RAINFALL WAS SET WITH 2.26
INCHES IN THE BUCKET.

&&

.PRELIMINARY POINT TEMPS/POPS...
KEY WEST  78  88  78  88 / 60 60 60 40
MARATHON  78  90  78  91 / 60 60 60 40

&&

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

PUBLIC/MARINE.........APA
AVIATION/NOWCASTS.....BWC

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KEY WEST FL
541 AM EDT WED SEP 12 2012

FLZ076>078-GMZ031>034-042>044-052>055-072>075-131000-
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-
541 AM EDT WED SEP 12 2012

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE FLORIDA KEYS AND THE
SURROUNDING COASTAL WATERS TODAY AND TONIGHT. THE PRIMARY
THUNDERSTORM HAZARDS WILL BE CLOUD TO SURFACE LIGHTNING STRIKES AND
WIND GUSTS IN EXCESS OF 30 KNOTS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS THE FLORIDA KEYS AND THE
SURROUNDING COASTAL WATERS THROUGH THE PERIOD. THE PRIMARY THUNDERSTORM
HAZARDS WILL BE CLOUD TO SURFACE LIGHTNING STRIKES AND LOCAL WIND GUSTS
IN EXCESS OF 30 KNOTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.