Freeze Warning 1, NWS Miami, FL

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
351 AM EST WED JAN 2 2008

.DISCUSSION...STRONG DRY COLD AIR ADVECTION MOVING RAPIDLY INTO S FLA
WITH TEMPERATURES AND DEW POINTS FALLING AT A PRECIPITOUS RATE. AFTER
A DECEMBER 2007 OF WELL ABOVE AVERAGE MAX/MIN TEMPS AND ABOVE NORMAL
MAX/MIN TEMPS ON JAN 1...S FLA GETTING A WAKE UP CALL AS TO WHAT
SEASON IT REALLY IS.

TODAY WILL BE VERY DRY AND WINDY WITH MAX TEMPS STRUGGLING TO REACH
60. MORE THAN LIKELY SEVERAL LOW MAXIMUM TEMPERATURES WILL BE EXCEED
-ED. TONIGHT...COLD AIR ADVECTION WILL CONTINUE...THOUGH WINDS WILL
SLACKEN...FREEZING TEMPERATURES WILL BE POSSIBLE IN THE INTERIOR AND
W...SPARING ONLY THE E COAST AND E COAST METRO AREAS. SOME OF THE W
SUBURBS THOUGH COULD FLIRT WITH THE FREEZING MARK. MINIMAL WARM UP
THU AS TEMPS HOVER MAINLY IN THE LOWER 60S ALL AREAS. EASTERLY WINDS
OFF OF THE ATLC KICK IN THU NIGHT...WITH A FEW E COAST SHOWERS AND
WARMING THE E COAST ZONES A BIT AS WELL. STILL BELOW NORMS THOUGH
WITH MID TO UPPER 30S STILL POSSIBLE IN THE NW INTERIOR.

THE FREEZE WATCH WILL BE UPDATED TO A FREEZE WARNING AS FREEZING
TEMPS CAN BE EXPECTED IN ALL ZONES EXCEPT THE E COAST AND E COAST
METROPOLITAN. THE WIND CHILL WATCH FOR S FLA WILL BE UPGRADED TO AN
ADVISORY ALL ZONES.

.EXTENDED...FRI THROUGH TUE...THE HIGH PRES SYSTEM THAT BROUGHT THE
EXTRAORDINARY TEMPS TO S FLA MOVES INTO THE ALTC. TEMPS BEGIN TO
CLIMB TOWARDS NORMS AND THEN ABOVE. MINIMAL POPS THROUGH THE PERIOD
MAINLY TO THE E COAST ON THE EASTERLY WIND FLOW.

&&
.AVIATION...VFR CONDITIONS WILL PREVAIL NEXT 24 HOURS WITH 5K FT
CIGS CLEARING THE SE CST BY 09Z. GUSTY NW WINDS WILL AFFECT ALL S
FLA TERMINALS AFT 12Z WITH GUSTS AS HIGH AS 22KT AND THEN DECREASING
TO AROUND 12 TO 14 KT AFTER 00Z AND REMAINING IN A NW DIRECTION.

&&
.MARINE...SMALL CRAFT ADVISORIES ALL ZONES TODAY AND INTO THU BEFORE
WINDS DIE DOWN. THE ADVISORY WILL STAY UP LONGER ATLC WATERS AS GULF
STREAM WILL REMAIN HIGH INTO THE EARLY WEEKEND. GUSTS TODAY AND
TONIGHT WILL BE NEAR GALE FORCE OVER THE GULF STREAM AND OUTER GULF
COAST WATERS,

&&
.FIRE WEATHER...DEW POINTS HAVE ALREADY PLUNGED INTO THE 20S ACROSS
THE NW INTERIOR AND THE DECREASING TREND CAN BE EXPECTED ACROSS THE
AREA TODAY. ON THU...WINDS SLOWLY VEER NE AND WITH THE FLOW OFF OF
THE ATLC...DEW POINTS SLOWLY RISE BUT NOT ENOUGH TO AFFECT IN THE W
ZONES. THE FIRE WEATHER WATCH THE GLADES, HENDRY AND COLLIER
COUNTIES WILL CONTINUE FOR LOW RH THU.

&&
.CLIMATE...SOME RECORD LOW MAX TEMPERATURES MAY OCCUR OR BE TIED
TODAY.

NAPLES FORECAST IS 57 AND THE RECORD IS 57 IN 1958.
FORT LAUDERDALE FORECAST IS 60 AND THE RECORD IS 60 IN 1979.

THURSDAY MORNING TEMPERATURES ACROSS S FL MAY SET SOME RECORD AS
WELL.

SITE...                 MIA   FLL  APF
RECORD LOW THU...       35    39   34
FORECAST LOW THU...     37    38   32

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  57  37  61  54  /  0  -  10  10
FORT LAUDERDALE  60  38  62  56  /  0  -  10  10
MIAMI            59  39  62  57  /  0  -  10  10
NAPLES           57  32  63  46  /  0  0   0  10

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...FREEZE WARNING LATE TONIGHT THROUGH THURSDAY MORNING
     ALL ZONES EXCEPT EAST COAST AND EAST COAST METRO.

     RED FLAG WARNING 9 AM THROUGH TO 6 PM EST ALL ZONES TODAY.

     WIND CHILL ADVISORY TONIGHT THROUGH THURSDAY MORNING
     ALL ZONES.

     FIRE WEATHER WATCH THURSDAY AFTERNOON FOR FLZ063-FLZ066-FLZ069-
     FLZ070.

     WIND CHILL ADVISORY UNTIL 9 AM EST TODAY FOR GLADES AND HENDRY
     COUNTIES.

AM...SMALL CRAFT ADVISORY UNTIL 1 PM EST FRIDAY FOR
     AMZ630-AMZ651-AMZ671.

     SMALL CRAFT ADVISORY UNTIL 1 PM EST FRIDAY FOR AMZ650-AMZ670.

     SMALL CRAFT ADVISORY UNTIL 1 PM EST THURSDAY FOR AMZ610.

GM...SMALL CRAFT ADVISORY UNTIL 1 PM EST FRIDAY FOR GMZ676.

     SMALL CRAFT ADVISORY UNTIL 1 PM EST FRIDAY FOR GMZ656-GMZ657.

&&

LONG TERM...JR
SHORT TERM/AVIATION...KB

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED
NATIONAL WEATHER SERVICE MIAMI FL
1030 PM EST TUE JAN 1 2008

FLZ063-066>075-168-172>174-020930-
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-
METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH-
COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
1030 PM EST TUE JAN 1 2008

...STRONG FRONT TO BRING COLDEST WEATHER OF THE SEASON THROUGH THURSDAY...
...DANGEROUS WIND CHILLS NORTHWEST INTERIOR TONIGHT...
...DETERIORATING CONDITIONS ON LOCAL COASTAL WATERS TONIGHT...
...FREEZE EXPECTED MOST OF SOUTH FLORIDA EARLY THURSDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TONIGHT

WIND: SUSTAINED NORTHWEST WINDS OF 20 TO 25 KNOTS, WITH GUSTS IN
EXCESS OF GALE FORCE, WILL SPREAD SOUTHWARD ACROSS THE LOCAL COASTAL
WATERS BEHIND A COLD FRONT WHICH HAS PASSED THROUGH THE REGION.

TEMPERATURES: RAPIDLY FALLING TEMPERATURES AND STRONG NORTHWEST
WINDS WILL CREATE APPARENT TEMPERATURES LOWER THAN 45 DEGREES
ACROSS ALL OF SOUTH FLORIDA BY WEDNESDAY MORNING, WITH APPARENT
TEMPERATURES IN THE 30 TO 35 DEGREE RANGE ACROSS PART OF THE REGION
AROUND LAKE OKEECHOBEE.

WAVES: AS VERY STRONG NORTHWEST WINDS SPREAD ACROSS THE COASTAL
WATERS, SEAS WILL RESPOND BY BUILDING TO 10 TO 12 FEET ACROSS THE
GULF STREAM BY WEDNESDAY MORNING. SEAS IN THE OFF SHORE GULF
WATERS WILL BUILD TO 6 TO 8 FEET.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

STRONG NORTH WINDS AND COLD TEMPERATURES WILL BE THE PRIMARY
HAZARDS FROM WEDNESDAY THROUGH THURSDAY, AS THE COLDEST AIRMASS
OF THE SEASON WILL CONTINUE TO SPREAD ACROSS THE AREA DURING THE
DAY ON WEDNESDAY. RECORD LOW TEMPERATURES ARE LIKELY FOR THE
MOST OF THE AREA ON THURSDAY MORNING, WITH A FREEZE LIKELY FOR ALL
OF SOUTH FLORIDA INCLUDING WESTERN PARTS OF THE EAST COAST METRO AREAS.
A PROLONGED PERIOD OF SUBFREEZING TEMPERATURES IS MOST LIKELY FOR
GLADES AND HENDRY COUNTIES, AS WELL AS INTERIOR PORTIONS OF
COLLIER AND PALM BEACH COUNTIES, WHERE A HARD FREEZE MAY OCCUR.
ADDITIONALLY, SUSTAINED NORTH WINDS RANGING FROM 5 TO 10 MPH
ACROSS THE INTERIOR TO 10 TO 15 MPH ALONG BOTH COASTS WILL RESULT
IN DANGEROUSLY LOW WIND CHILL VALUES IN THE 20 TO 30 DEGREE RANGE
FOR ALL OF SOUTH FLORIDA ON THURSDAY MORNING, WITH WIND CHILLS AS
LOW AS 15 DEGREES POSSIBLE ACROSS GLADES AND HENDRY COUNTIES.

FINALLY, NORTH TO NORTHEAST WINDS FROM 20 TO 25 KNOTS WITH HIGHER
GUSTS WILL CONTINUE ACROSS THE LOCAL COASTAL WATERS THROUGH
FRIDAY, BEFORE WEAKENING. VERY ROUGH SEAS AND SMALL CRAFT
ADVISORIES WILL BE LIKELY THROUGHOUT THIS PERIOD. AS THE STRONG
WINDS SHIFT TO THE EAST LATE THIS WEEK, THE THREAT FOR RIP
CURRENTS WILL INCREASE SIGNIFICANTLY ALONG THE ATLANTIC COAST
BEACHES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.