000
FXUS62 KMFL 272024
AFDMFL
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
324 PM EST MON DEC 27 2010
...RECORD COLD TONIGHT ACROSS SOUTH FLORIDA...
...WARMING TREND FOR MIDDLE TO END OF THE WEEK...
.DISCUSSION...
.TONIGHT...
HIGH PRESSURE WAS LOCATED OVER THE TENNESSEE VALLEY THIS
AFTERNOON. THE HIGH WILL MOVE SOUTHEAST AND INTO NORTH FLORIDA
TONIGHT ALLOWING FOR THE SKIES TO REMAIN CLEAR AND THE WINDS TO BE
LIGHT AND VARIABLE. THE ONLY EXCEPTION TO THIS IS OVER THE COASTAL
AREAS OF SOUTH FLORIDA WHERE DRAINAGE FLOW WILL SET UP WITH SPEEDS
OF 5 TO 10 MPH. SO SOUTH FLORIDA SHOULD SEE GOOD RADIATIONAL
COOLING TONIGHT.
THE LATEST SHORT RANGE MODELS ARE SHOWING THAT THE ARCTIC AIR
MASS WILL NOT MODIFY AS MUCH TONIGHT ACROSS THE CWA...DUE TO THE
SNOW COVER THAT IS CURRENTLY OVER NORTHERN GEORGIA...NORTHERN
ALABAMA...AND MOST OF SOUTH CAROLINA. THEREFORE...THE LOWS
TONIGHT HAS BEEN LOWERS INTO THE MID TO UPPER 20S OVER THE
NORTHERN INTERIOR AREAS TO THE UPPER 20S TO LOWER 30S OVER THE
SOUTHERN INTERIOR AREAS...WITH GLADES AND HENDRY COUNTIES GETTING
DOWN TO AROUND 20. THE METRO AREAS OF PALM BEACH AND COLLIER
COUNTIES WILL GET DOWN TO AROUND FREEZING. FOR BROWARD AND MIAMI-
DADE COUNTIES...TEMPERATURES WILL BE IN THE MID TO UPPER
30S...EXCEPT FOR THE AREAS ALONG AND WEST OF I-75...THE SAWGRASS
EXPRESSWAY IN BROWARD COUNTY...AND THE FLORIDA TURNPIKE IN MIAMI-
DADE COUNTY WHERE THEY COULD FALL DOWN TO THE FREEZING MARK. SO
HAVE UPGRADED THE FREEZE WARNING TO A HARD FREEZE WARNING FOR
GLADES AND HENDRY COUNTIES TONIGHT...AND EXPAND THE FREEZE WARNING
TO INCLUDE REST OF THE INTERIOR AREAS AND THE METRO AREAS OF SOUTH
FLORIDA.
A WIND CHILL ADVISORY HAS ALSO BEEN ISSUED FOR THE COASTAL AREAS
OF SOUTH FLORIDA TONIGHT...DUE TO THE DRAINAGE FLOW OF 5 TO 10 MPH
AND THE TEMPERATURES IN THE MID TO UPPER 30S. THIS WILL MAKE THE
FEEL LIKE TEMPERATURES TO BE IN THE UPPER 20S TO LOWER 30S FOR
THESE AREAS.
HEAVY FROST WAS ALSO REPORTED BY THE PUBLIC OVER GLADES AND HENDRY
COUNTIES EARLY THIS MORNING. WITH THE LIGHT WINDS AND CLEAR SKIES
ALONG WITH THE COLD TEMPERATURES...FROST SHOULD DEVELOP OVER THE
INTERIOR AND THE METRO AREAS OF SOUTH FLORIDA TONIGHT. SO HAVE
ADDED FROST WORDING OVER MOST OF SOUTH FLORIDA FOR TONIGHT...EXCEPT
FOR THE EAST COASTAL AREAS OF SOUTH FLORIDA.
THE TEMPERATURES FOR TONIGHT WILL ALSO BE NEAR OR BELOW THE RECORD
LOWS FOR THIS TIME OF YEAR ACROSS SOUTH FLORIDA. MORE ON THIS IN
THE CLIMATE SECTION BELOW.
.TUESDAY AND TUESDAY NIGHT...
THE HIGH WILL SLOWLY MOVE EAST ON TUESDAY FROM NORTH FLORIDA INTO
THE NORTHWEST ATLANTIC WATERS. THIS WILL KEEP THE DRY WEATHER
ALONG WITH THE COOL TEMPERATURES OVER SOUTH FLORIDA ON TUESDAY.
HOWEVER...THE HIGHS SHOULD BE ABOUT 10 DEGREE HIGHER IN THE 60S ON
TUESDAY WITH THE LOWS IN THE MID TO UPPER 30S OVER THE INTERIOR
AREAS TO THE UPPER 30S TO MID 40S OVER THE METRO AREAS. THE ONLY
EXCEPTION TO THIS IS OVER GLADES AND HENDRY COUNTIES WHERE THE
LOWS COULD FALL BACK INTO THE LOWER 30S. SO HAVE CONTINUE THE
FREEZE WATCH FOR GLADES AND HENDRY COUNTIES FOR TUESDAY NIGHT.
.WEDNESDAY THROUGH THIS WEEKEND...
THE HIGH WILL CONTINUE TO MOVE SLOWLY EAST INTO THE WESTERN
ATLANTIC WATERS DURING THIS TIME. THIS WILL ALLOW FOR THE WINDS TO
SWING MORE TO THE EAST DIRECTION DURING THIS TIME...AND ALLOW FOR
A WARM UP OVER SOUTH FLORIDA ALONG WITH DRY WEATHER. SO WILL
CONTINUE TO SLOW A WARM UP FOR THE MIDDLE OF THIS WEEK INTO THIS
WEEKEND OVER SOUTH FLORIDA ALONG WITH DRY WEATHER.
&&
.MARINE...
THE WINDS WILL REMAIN NORTHERLY TONIGHT INTO TUESDAY BEFORE
SWINGING TO EASTERLY DIRECTION LATE THIS WEEK INTO THIS WEEKEND.
THE SPEEDS WILL ALSO DECREASE FROM WINDY CONDITIONS THIS EVENING
TO AROUND 5 TO 10 MPH BY LATE THIS WEEK INTO THIS WEEKEND. THIS
WILL ALLOW FOR THE SEAS OVER THE ATLANTIC WATERS TO SLOWLY
DECREASE FROM 6 TO 8 FEET THIS EVENING TO AROUND 7 FEET TUESDAY
MORNING...AND THEN LESS THAN 7 FEET BY TUESDAY AFTERNOON. IN THE
GULF WATERS...THE OFFSHORE SEAS WILL REMAIN ABOVE 7 FEET THROUGH
THIS EVENING BEFORE DECREASING BELOW 7 FEET LATE TONIGHT...AND
REMAIN BELOW 7 FEET THROUGH REST OF THIS WEEK INTO THIS WEEKEND.
SO HAVE CONTINUE THE SCA FOR ALL OF THE CWA WATERS THROUGH THIS
EVENING...THEN KEPT ONLY THE ATLANTIC AND OFFSHORE GULF WATERS FOR
TONIGHT.
&&
.FIRE WEATHER...
THE RELATIVE HUMIDITIES THIS AFTERNOON HAVE STARTED TO FALL INTO
THE LOWER 30S...AND SHOULD REMAIN IN THE LOWER 30S FOR REST OF
THIS AFTERNOON. SO WILL CONTINUE THE RED FLAG WARNING FOR ALL OF
SOUTH FLORIDA THROUGH THIS AFTERNOON.
THE RELATIVE HUMIDITIES TUESDAY AFTERNOON COULD AGAIN FALL INTO
THE LOWER 30S FOR 4 HOURS OR MORE OVER THE CWA...EXCEPT FOR THE
EAST COASTAL AREAS. SO HAVE KEPT THE FIRE WEATHER WATCH UP FOR THE
INTERIOR AREAS...AND EXPANDED THE FIRE WEATHER WATCH INTO THE METRO
AREAS OF SOUTH FLORIDA FOR TUESDAY AFTERNOON.
&&
.CLIMATE...
HERE ARE THE FORECAST LOWS AND RECORD LOWS FOR SOUTH FLORIDA FOR TONIGHT.
CITIES FORECAST LOWS RECORD LOWS
MIAMI 37 37 - 1902
FT. LAUDERDALE 35 38 - 1956
WEST PALM BEACH 29 38 - 1935
NAPLES 31 33 - 1977
&&
.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH 29 62 39 69 / 0 0 0 -
FORT LAUDERDALE 35 64 47 71 / 0 0 0 -
MIAMI 37 65 48 72 / 0 0 0 -
NAPLES 31 60 39 70 / 0 0 0 -
&&
.MFL WATCHES/WARNINGS/ADVISORIES...
FL...RED FLAG WARNING UNTIL 6 PM EST THIS EVENING FOR COASTAL BROWARD-
COASTAL MIAMI DADE-COASTAL PALM BEACH-GLADES-HENDRY-INLAND
BROWARD-INLAND COLLIER-INLAND MIAMI DADE-INLAND PALM BEACH-
METRO BROWARD-METRO MIAMI DADE-METRO PALM BEACH.
FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM EST TUESDAY FOR
COASTAL COLLIER-COASTAL PALM BEACH-FAR SOUTH MIAMI DADE-
INLAND BROWARD-INLAND COLLIER-INLAND MIAMI DADE-INLAND PALM
BEACH-MAINLAND MONROE-METRO BROWARD-METRO MIAMI DADE-METRO
PALM BEACH.
FIRE WEATHER WATCH FROM TUESDAY MORNING THROUGH TUESDAY
AFTERNOON FOR FAR SOUTH MIAMI DADE-INLAND BROWARD-INLAND
MIAMI DADE-INLAND PALM BEACH-MAINLAND MONROE-METRO BROWARD-
METRO MIAMI DADE-METRO PALM BEACH.
FIRE WEATHER WATCH FROM TUESDAY MORNING THROUGH TUESDAY
AFTERNOON FOR COASTAL COLLIER-GLADES-HENDRY-INLAND COLLIER.
WIND CHILL ADVISORY FROM MIDNIGHT TONIGHT TO 9 AM EST TUESDAY
FOR COASTAL BROWARD-COASTAL COLLIER-COASTAL MIAMI DADE-
COASTAL PALM BEACH-FAR SOUTH MIAMI DADE-MAINLAND MONROE.
HARD FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM EST TUESDAY
FOR GLADES-HENDRY.
FREEZE WATCH FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING
FOR GLADES-HENDRY.
AM...SMALL CRAFT ADVISORY UNTIL 2 PM EST TUESDAY FOR COASTAL WATERS
FROM DEERFIELD BEACH TO OCEAN REEF, FL OUT 20 NM-COASTAL
WATERS FROM JUPITER INLET TO DEERFIELD BEACH, FL OUT 20 NM-
WATERS FROM DEERFIELD BEACH TO OCEAN REEF, FL EXTENDING
FROM 20 NM TO THE TERRITORIAL WATERS OF THE BAHAMAS-WATERS
FROM JUPITER INLET TO DEERFIELD BEACH, FL EXTENDING FROM 20
NM TO 60 NM.
SMALL CRAFT ADVISORY UNTIL 8 PM EST THIS EVENING FOR BISCAYNE
BAY-LAKE OKEECHOBEE.
GM...SMALL CRAFT ADVISORY UNTIL 4 AM EST TUESDAY FOR GULF WATERS FROM
CHOKOLOSKEE TO BONITA BEACH, FL EXTENDING FROM 20 TO 60 NM.
SMALL CRAFT ADVISORY UNTIL 8 PM EST THIS EVENING FOR COASTAL
WATERS FROM CHOKOLOSKEE TO BONITA BEACH, FL OUT 20 NM-
COASTAL WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE, FL OUT
20 NM.
&&
$$
DISCUSSION/MARINE...54/BNB
AVIATION/RADAR/FIRE...04/AT
