FXUS62 KFFC 261555
AFDFFC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1055 AM EST SAT DEC 26 2009
.UPDATE...
NO CHANGES NEEDED TO THIS MORNINGS FORECAST PACKAGE. LATEST
SATELLITE LOOP SHOWS SCATTERED HIGH LEVEL CLOUDS OVER THE FORECAST
AREA. WEAK HIGH PRESSURE WILL CONTINUE TO DOMINATE THE STATE.
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&&
.PREV DISCUSSION... /ISSUED 525 AM EST SAT DEC 26 2009/
SHORT TERM /TODAY THROUGH MONDAY/...
HIGH PRESSURE WILL SETTLE OVER THE STATE TODAY...RESULTING IN
DRY...SEASONABLY MILD CONDITIONS WITH THE OCCASIONAL HIGH CLOUDS
STREAMING ACROSS TODAY AND OVERNIGHT. MODELS CONTINUE TO SHOW AN
UPPER DISTURBANCE ON SUNDAY SWINGING THRU THE BASE OF A NEARLY
STATIONARY UPPER LOW CURRENTLY SPINNING OVER IA. THIS MAY INCREASE
CLOUDS AND PRODUCE THE OCCASIONAL SPRINKLE OF LIGHT RAIN...BUT NAM
AND GFS AGREE THE BETTER RAIN CHANCES WILL BE NORTH AND SOUTH OF
THE FORECAST AREA ON SUNDAY. THEREFORE...WILL ONLY SHOW A 10% POP
WITH NO MENTION OF MEASURABLE PRECIP AT THIS TIME. BEHIND THIS
DISTURBANCE... A REINFORCING DRY COLD FRONT WILL SWEEP ACROSS THE
STATE SUNDAY NIGHT WITH ANOTHER COLD DOME OF HIGH PRESSURE
BUILDING IN FROM THE NW ON MONDAY. PREFERRED THE WARMER MAV
GUIDANCE FOR HIGHS TODAY WITH A MODIFYING AIR MASS UNDER AMPLE
SUNSHINE. A MAV AND MET BLEND LOOK REASONABLE FOR THE REMAINING
PERIODS.
LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
HIGH PRESSURE DOMINATES THROUGH TUESDAY...THEN SLIPS OFF TO THE
EAST AS AN UPPER LOW DEEPENS OVER THE SOUTHERN PLAINS. THIS WILL
PRODUCE ANOTHER GULF LOW THAT GFS AND ECMWF AGREE WILL APPROACH SOUTH
GA ON WEDNESDAY...THEN TRACK ACROSS SOUTH GA AND NORTH FL WEDNESDAY
NIGHT. LOOKS LIKE ANOTHER COLD WEDGE OVERRUNNING RAIN EVENT...WITH
WARM SECTOR AND GREATER INSTABILITIES HOLDING WELL SOUTH OF THE
FORECAST AREA THROUGH WEDNESDAY NIGHT. THEREFORE... WILL JUST MENTION
RAIN FOR NOW... BUT MODERATE AT TIMES... ESPECIALLY WEDNESDAY
AFTERNOON-EVENING. THE SYSTEM IS FAIRLY FAST MOVING... SO EXPECTED
RAINFALL AMOUNTS SHOULD BE IN THE 1 TO 2 INCH RANGE...OR LESS. WRAP
AROUND MOISTURE WILL COLLIDE WITH THE COLD AIR ADVECTING DOWN FROM
THE NW TO BRING A SLIGHT CHANCE OF SNOW TO MAINLY NORTH GA FOR BOTH
THURSDAY AND FRIDAY NIGHTS. TOO FAR OUT TO HAVE ANY CONFIDENCE...BUT
IF THE PATTERN VERIFIES... WOULD NOT EXPECT ANY SIGNIFICANT
ACCUMULATIONS WITH THIS PATTERN.
AVIATION...
VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THIS FORECAST PERIOD
WITH WEST WINDS AT 10 KTS OR LESS.
&&
.PRELIMINARY POINT TEMPS/POPS...
ATHENS 53 33 55 31 51 / 0 5 10 5 5
ATLANTA 51 34 52 30 47 / 0 5 10 5 5
BLAIRSVILLE 47 26 47 25 45 / 0 5 10 10 5
CARTERSVILLE 51 27 53 26 46 / 0 5 10 10 5
COLUMBUS 54 33 58 32 52 / 0 5 10 10 5
GAINESVILLE 51 32 51 30 48 / 0 5 10 10 5
MACON 55 32 58 31 54 / 0 5 10 10 5
ROME 51 27 54 29 49 / 0 5 10 10 5
PEACHTREE CITY 52 25 55 26 47 / 0 5 10 5 5
VIDALIA 56 35 59 35 54 / 0 5 10 10 5
&&
.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
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