FXUS62 KCAE 270852
AFDCAE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
352 AM EST FRI NOV 27 2009
.SYNOPSIS...
COLD FRONT HAS MOVED OFF THE ATLANTIC COAST...WITH DRY HIGH
PRESSURE MOVING IN BEHIND THE FRONT. THIS IS EXPECTED TO CONTROL
OUR WEATHER THROUGH THE WEEKEND. EARLY NEXT WEEK ANOTHER COLD
FRONT WILL PUSH THROUGH THE AREA. LOW PRESSURE TRACKING NORTHEAST
FROM THE GULF OF MEXICO WILL BRING WET WEATHER AND COOL TEMPERATURES
WEDNESDAY.
&&
.NEAR TERM /TODAY/...
SUNNY SKIES EXPECTED ACROSS THE REGION AS DRY HIGH PRESSURE BEGINS
TO SETTLE ACROSS THE AREA. COOLER TEMPERATURES THIS
AFTERNOON...WITH HIGHS ONLY IN THE MID 50S. WINDS ON AREA LAKES
WILL CONTINUE TO BE STRONG AND GUSTY...ESPECIALLY NEAR THEIR
CENTER. WINDS EXPECTED TO DIMINISH LATER THIS MORNING. WILL
CONTINUE WITH CURRENT LAKE WIND ADVISORY THROUGH 11 AM.
&&
.SHORT TERM /TONIGHT THROUGH SUNDAY/...
WITH DRY AIR IN PLACE...CLEAR SKIES FORECAST...AND GENERALLY LIGHT
WINDS...TONIGHT WILL BE ONE OF THE COLDER ONES WE HAVE SEEN FOR A
WHILE. GUIDANCE CONTINUES TO GIVE OVERNIGHT LOWS GENERALLY FROM 31
TO 34 DEGREES. WITH THE DRY AIR...HAVE UNDERCUT THOSE NUMBERS
SLIGHTLY...WHICH GIVES READINGS AT OR SLIGHTLY BELOW FREEZING FOR
MOST AREAS. WILL GO AHEAD AND ISSUE A FREEZE WARNING FOR THE
ENTIRE CWA. THIS COULD FINALLY END THE GROWING SEASON.
SATURDAY WILL REMAIN DRY...WITH A SLIGHT WARM UP DURING THE
AFTERNOON...WITH HIGHS IN THE LOWER 60S. OVERNIGHT LOWS SATURDAY
NIGHT INTO SUNDAY IN THE MID 30S. SUNDAY WILL SEE THE SURFACE HIGH
BEGIN MOVING OFF THE ATLANTIC COAST AS SURFACE COLD FRONT BEGINS
MOVING THROUGH THE MISSISSIPPI VALLEY REGION. SHOULD BEGIN TO SEE
AN INCREASE IN LOW LEVEL MOISTURE AS WE GET ON THE BACKSIDE OF THE
HIGH. SUNDAY WILL STILL REMAIN DRY.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
COLD FRONT POISED TO MOVE TOWARDS AND THROUGH THE REGION FROM
MONDAY INTO TUESDAY...WITH INCREASING RAIN CHANCES DURING THAT
TIME FRAME. MOST OF THE MAIN UPPER LEVEL ENERGY WILL REMAIN JUST
OFF TO THE NORTH OF THE AREA...WITH MAINLY SHOWERS EXPECTED AT
THIS TIME. BRIEF BREAK TUESDAY EVENING INTO WEDNESDAY MORNING
BEFORE THE NEXT RAINMAKER BEGINS SPREADING MOISTURE AND PRECIP
OVER THE REGION. STRONG SOUTHERN STREAM SYSTEM MOVING THROUGH THE
NORTHERN GULF OF MEXICO WILL SPREAD PLENTY OF MOISTURE OUR WAY ON
WEDNESDAY AHEAD OF DEVELOPING SURFACE LOW. THIS LOW IS CURRENTLY
FORECAST TO TRACK ACROSS THE AREA DURING THE DAY ON WEDNESDAY.
THE SYSTEM WILL HAVE STRONGER UPPER LEVEL SUPPORT. THE SYSTEM
LIFT NORTH OF THE AREA THURSDAY.
&&
.AVIATION /09Z FRIDAY THROUGH TUESDAY/...
A COLD FRONT PUSHED THROUGH EARLIER AND HIGH PRESSURE IS BUILDING
INTO THE REGION WITH MODERATE WEST TO NORTHWESTERLY WINDS. VFR
CONDITIONS ARE EXPECTED FOR THE 24 HR TAF PERIOD. WINDS AROUND 10
TO 15 MPH WITH GUSTS TO 20 MPH ARE EXPECTED TO START THE FORECAST
PERIOD BUT THE GUSTS SHOULD DIMINISH AROUND SUNRISE FOR A FEW
HOURS. WINDS WILL PICK UP AGAIN MID MORNING WITH GOOD MIXING
EXPECTED AND WESTERLY WINDS AROUND 15 MPH WITH GUSTS TO 25 MPH ARE
EXPECTED THROUGH LATE AFTERNOON. WINDS WILL RELAX WITH SUNSET AND
REMAIN WESTERLY AROUND 5 MPH OVERNIGHT.
EXTENDED AVIATION OUTLOOK...POSSIBLE MVFR CONDITIONS MAY DEVELOP
BY LATE MONDAY AS ANOTHER COLD FRONT APPROACHES FROM THE WEST.
MVFR CONDITIONS MAY AGAIN OCCUR ON WEDNESDAY AS A LOW PRESSURE
SYSTEM APPROACHES FROM THE GULF COAST.
&&
.CAE WATCHES/WARNINGS/ADVISORIES...
SC...LAKE WIND ADVISORY UNTIL 11 AM EST THIS MORNING FOR SCZ015-016-
018-020>022-025>031-035>038-041.
FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM EST SATURDAY FOR
SCZ015-016-018-020>022-025>031-035>038-041.
GA...LAKE WIND ADVISORY UNTIL 11 AM EST THIS MORNING FOR GAZ040-
063>065-077.
FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM EST SATURDAY FOR
GAZ040-063>065-077.
&&
$$
