Area Forecast Discussion
Issued by NWS Columbia, SC

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FXUS62 KCAE 022123
AFDCAE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
423 PM EST MON MAR 2 2015

.SYNOPSIS...
A FRONTAL BOUNDARY WILL STALL JUST TO OUR SOUTH AND WEST TONIGHT
THROUGH TUESDAY. THE FRONT WILL SHIFT BACK THROUGH LATE TUESDAY
NIGHT OR EARLY WEDNESDAY AS A WARM FRONT. A COLD FRONT WILL COME
THROUGH THURSDAY. HIGH PRESSURE WILL SETTLE INTO THE REGION
FRIDAY.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
SKIES HAVE REMAINED PARTLY CLOUDY TO MOSTLY SUNNY FOR MUCH OF THE
AFTERNOON ALLOWING MORE INSOLATION THAN ORIGINALLY ANTICIPATED...
THUS TEMPERATURES HAVE RISEN INTO THE 70S AT MOST LOCATIONS. THE
FRONTAL BOUNDARY WILL CROSS THE AREA BY THIS EVENING BEFORE
STALLING TO OUR SOUTH AND WEST. REGIONAL RADAR COMPOSITE SHOWS ONLY
A FEW SHOWERS ACROSS EAST CENTRAL ALABAMA AND CENTRAL GEORGIA SO
HAVE LOWERED POPS A BIT. ISENTROPIC LIFT AHEAD OF SOME UPPER
ENERGY WILL LEAD TO PRECIPITATION DEVELOPING FROM THE CSRA AND
MOVING EASTWARD TONIGHT. OVERNIGHT LOWS RANGING FROM AROUND 40
NORTH TO THE LOWER 50S EXTREME SOUTH.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/...
COLD FRONT WILL BE SITUATED JUST TO THE SOUTH OF THE CWA TUESDAY
MORNING...BUT WILL BEGIN TO SLOWLY LIFT NORTHWARD LATE IN THE DAY
AND INTO TUESDAY NIGHT. MODELS SUGGESTING THE BEST CHANCE FOR RAIN
WITH ISENTROPIC LIFT MAY BE DURING THE MORNING HOURS ACROSS THE
MAJORITY OF THE CWA...THEN THE BEST CHANCES FOR RAINFALL MOVE
NORTH AND WEST DURING THE AFTERNOON HOURS ON TUESDAY. WITH THE
SLOW NORTHWARD PROGRESSION OF THE WARM FRONT...TEMPERATURES
THROUGH THE DAY TUESDAY WILL BE BACK BELOW NORMAL. TEMPERATURES
ARE EXPECTED TO BE ON THE INCREASE TUESDAY NIGHT AS THE WARM FRONT
MOVES THROUGH THE AREA...WITH A WARM DAY...HIGHS BACK IN THE
70S...LOOKING ON TAP FOR WEDNESDAY. BEST CHANCE FOR RAIN SHOULD
STILL REMAIN OFF TO THE NORTH AND WEST THROUGH THE DAY WEDNESDAY.
BETTER RAIN CHANCES WILL INCREASE WEDNESDAY NIGHT AHEAD OF THE
NEXT APPROACHING COLD FRONT...ESPECIALLY ACROSS THE WESTERN
COUNTIES LATE WEDNESDAY NIGHT.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
COLD FRONT POISED TO MOVE THROUGH THE CWA DURING THE DAY THURSDAY.
MAY SEE HIGH TEMPERATURES EARLY IN THE DAY...WITH READINGS THEN
BECOMING STEADY OR FALLING INTO THE AFTERNOON. BEST CHANCE FOR
RAINFALL WILL BE EARLY IN THE DAY THURSDAY AHEAD OF THE
FRONT...AND SHOULD SEE SOME SHOWER OR AN ISOLATED THUNDERSTORMS.
ANOTHER AREA OF COOL HIGH PRESSURE WILL BUILD OVER THE AREA BEHIND
THE FRONT THURSDAY NIGHT AND FRIDAY. AT THIS POINT IT LOOKS AS IF
THE FRONT WILL STALL OUT FAR ENOUGH SOUTH OF THE CWA SO THAT DRY
CONDITIONS WOULD OCCUR THURSDAY NIGHT THROUGH SATURDAY MORNING.
AFTER THAT...MOISTURE WILL BEGIN INCREASING FROM THE
SOUTH...ALTHOUGH DO NOT EXPECT MORE THAN SLIGHT CHANCE FOR
RAINFALL ACROSS SOUTHERN COUNTIES. LATER ON IN THE LONGER
TERM...CONFIDENCE IS LOW DUE TO DISAGREEMENTS BETWEEN THE GFS AND
THE ECMWF.

&&

.AVIATION /21Z MONDAY THROUGH SATURDAY/...
VFR CONDITIONS WERE OCCURRING LATE THIS AFTERNOON ASSOCIATED WITH
THE WESTERLY FLOW AHEAD OF THE COLD FRONT. THIS COLD FRONT WILL BE
SINKING SOUTHWARD AND THROUGH THE FORECAST AREA LATE THIS
AFTERNOON. ISENTROPIC LIFT BEHIND THE FRONT WILL BRING AN INCREASE
IN CLOUDINESS AND CONDITIONS WILL DETERIORATE INTO THE MVFR AND IFR
CATEGORIES. THE GFS AND NAM MOS INDICATE MAINLY MVFR CEILINGS
DEVELOPING TONIGHT AND IFR TUESDAY. THE SPC WRF DISPLAYED
SCATTERED AREAS OF RAIN LATE TONIGHT AND COVERAGE OVER MUCH OF THE
AREA TUESDAY.

EXTENDED AVIATION OUTLOOK...WIDESPREAD IFR OR MVFR CONDITIONS ARE
EXPECTED ASSOCIATED WITH FRONTAL SYSTEMS...ESPECIALLY TUESDAY AND
THURSDAY.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...NONE.
GA...NONE.
&&

$$





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