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...COLDEST NIGHT SINCE THE FIRST WEEK OF MARCH 2009...

TONIGHT WILL BE THE COLDEST NIGHT SINCE THE FIRST WEEK OF MARCH
2009. LOW TEMPERATURES WILL FALL INTO THE 40S...EXCEPT AROUND 50
OVER ACROSS MOST OF THE FORT LAUDERDALE AND MIAMI METROPOLITAN
AREAS. TEMPERATURES WILL REBOUND OVER THE WEEKEND...REACHING BACK
CLOSER TO NORMAL LEVELS BY SUNDAY.

...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM EST THIS EVENING FOR
MORE THAN 4 HOURS OF BELOW 35 PERCENT RELATIVE HUMIDITIES...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY AFTERNOON FOR MORE THAN 4 HOURS OF BELOW 35
PERCENT RELATIVE HUMIDITIES...

RELATIVE HUMIDITIES ACROSS THE INTERIOR AREAS OF SOUTH FLORIDA EARLY
THIS AFTERNOON HAVE BEEN RUNNING IN THE LOWER 30S. THESE RELATIVE
HUMIDITIES WILL CONTINUE THROUGH THE AFTERNOON HOURS...AND SHOULD
GET ABOVE THE 35 PERCENT LEVEL BY 7 PM EST THIS EVENING.
THEREFORE...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST
THIS EVENING FOR MORE THAN 4 HOURS OF BELOW 35 PERCENT RELATIVE
HUMIDITIES.

THE DRY AIR WILL REMAIN IN PLACE ACROSS SOUTH FLORIDA ON
SATURDAY...BUT SOME LOW LEVEL MOISTURE SHOULD WORK INTO THE AREA
FROM THE ATLANTIC WATERS AS THE WINDS BECOME NORTHEAST SATURDAY
AFTERNOON. A WEST COAST SEA BREEZE SHOULD ALSO DEVELOP OVER THE
WEST COAST METRO AREAS OF COLLIER COUNTY SATURDAY AFTERNOON
BRINGING IN SOME MOISTURE TO THIS AREA. THIS WILL LIMIT THE
DURATION RELATIVE HUMIDITIES FALLING BELOW 35 PERCENT FOR 3 TO 4
HOURS AT THIS TIME FOR SATURDAY AFTERNOON. SO WILL CONTINUE THE
FIRE WEATHER WATCH FOR THE INTERIOR AREAS OF BROWARD...MIAMI-
DADE...PALM BEACH...SOUTH MIAMI-DADE...MAINLAND MONROE...AND METRO
COLLIER COUNTIES FOR SATURDAY AFTERNOON.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

...COLDEST NIGHT OF THE WINTER SEASON 2009/2010 SO FAR FOR SOUTH
FLORIDA...

HIGH PRESSURE WILL BE OVER THE FLORIDA PENINSULA TONIGHT WHICH
WILL ALLOW MOSTLY CLEAR SKIES AND LIGHT WINDS ALLOWING FOR A GOOD
RADIATIONAL COOLING NIGHT ACROSS SOUTH FLORIDA. LOW TEMPERATURES
TONIGHT WILL FALL INTO THE MID TO UPPER 30S OVER GLADES AND HENDRY
COUNTIES AND 40S OVER REST OF THE AREA...EXCEPT AROUND 50 OVER
EASTERN SECTIONS OF BROWARD AND MIAMI-DADE COUNTIES. PEOPLE NEED
TO CHECK ON THE ELDERLY AND BRING THERE PETS INSIDE TONIGHT.
GLADES AND HENDRY COUNTIES COULD EVEN SEE PATCHY FROST IN THE
NORMALLY COLDER AND WIND PROTECTED AREAS LATE TONIGHT INTO EARLY
SATURDAY MORNING.

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON FOR ALL OF SOUTH FLORIDA FROM 10 AM EST UNTIL 6
PM EST FOR 4 OR MORE HOURS OF BELOW 35 PERCENT RELATIVE HUMIDITIES...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON.

MUCH DRIER AIR WILL WORK INTO SOUTH FLORIDA TONIGHT INTO FRIDAY
WHICH WILL ALLOW FOR THE DEW POINTS TO FALL INTO THE 30S.
TEMPERATURES WILL ALSO WARM UP TO AROUND 70 OVER ALL OF SOUTH
FLORIDA. THIS WILL ALLOW FOR THE RELATIVE HUMIDITIES TO FALL BELOW
35 PERCENT FOR 4 HOURS OR MORE LATE FRIDAY MORNING INTO FRIDAY
AFTERNOON. THEREFORE...A FIRE WEATHER WATCH HAS BEEN ISSUED FOR
ALL OF SOUTH FLORIDA FROM 10 AM EST UNTIL 6 PM EST.

THE KEETCH BYRAM DROUGHT INDEX IS ALSO RUNNING HIGH OVER THE
NORTHERN PORTION OF THE SOUTH FLORIDA. IN GLADES COUNTY IT IS RUNNING
BETWEEN 550 AND 600...AND IN HENDRY AND PALM BEACH COUNTIES IT IS
RUNNING AROUND 500.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR IN THE NEXT 48 HOURS. LISTEN FOR LATER
FORECASTS AND POSSIBLE RED FLAG WARNINGS.

&&