647
FXUS62 KFFC 211121
AFDFFC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
621 AM EST SAT DEC 21 2024
..NEW 12Z AVIATION DISCUSSION
SHORT TERM
(TODAY THROUGH SUNDAY)
ISSUED AT 404 AM EST SAT DEC 21 2024
POST-FRONTAL STRATOCUMULUS IS STILL PRESENT ACROSS MUCH OF NW GA
AND JUST ON THE OUTER FRINGES OF THE NORTH GA METRO THIS MORNING.
NW WINDS ARE STILL A LITTLE BREEZY BUT HAVE LARGELY BEGUN TO
SLACKEN. ISOLATED WIND GUSTS UP TO 20 MPH WILL BE POSSIBLE THROUGH
THE AFTERNOON. ANOTHER PIECE OF MIDLEVEL ENERGY WILL SWING TO THE
EAST ACROSS THE TN VALLEY TODAY AND SOME CLOUD COVER MAY LINGER
IN PARTS OF NORTH GA. HIGH PRESSURE WILL BUILD INTO THE REGION
FROM THE NW AND WILL RESULT IN DRY CONDITIONS THROUGH THE SHORT
TERM PERIOD (SUNDAY). TEMPERATURES THROUGH SUNDAY WILL BE SLIGHTLY
BELOW CLIMATOLOGICAL NORMS WITH FORECAST HIGHS IN THE MID 40S TO
MID 50S (UPPER 30S TO LOW 40S AT THE HIGHEST ELEVATIONS IN NE GA).
LIGHT NORTH WINDS AND CLEAR SKIES WILL ALLOW FOR STRONG
RADIATIONAL COOLING RESULTING IN FORECAST LOWS IN THE 20S
AREAWIDE. SOME PATCHY FROST MAY ALSO DEVELOP.
07
LONG TERM
(SUNDAY NIGHT THROUGH FRIDAY)
ISSUED AT 404 AM EST SAT DEC 21 2024
KEY MESSAGES:
- COLD START WITH GRADUALLY WARMING TEMPERATURES EACH DAY.
- LIGHT PRECIPITATION EXPECTED LATE CHRISTMAS EVE INTO CHRISTMAS
DAY, MAINLY ACROSS N AND N CENTRAL GA.
AN UPPER TROUGH OVER THE W ATLANTIC WILL PUT THE LOCAL AREA IN NW
FLOW ALOFT. A SHORTWAVE WILL SWEEP RAPIDLY ACROSS THE GREAT LAKES ON
MONDAY, WITH LITTLE IMPACT THIS FAR S. A MORE SIGNIFICANT SHORTWAVE
WILL DIG OVER THE CENTRAL PLAINS LATE MONDAY INTO TUESDAY. HOWEVER,
THIS FEATURE WILL RAPIDLY DAMPEN AS IT LIFTS NE TOWARD THE OH VALLEY
BY WEDNESDAY NIGHT. ANOTHER POTENT SHORTWAVE IS FORECAST TO DIG OVER
THE CENTRAL AND SOUTHERN PLAINS LATE IN THE COMING WEEK, BUT THIS
SHORTWAVE IS FORECAST TO WEAKEN AS IT LIFTS TOWARD THE GREAT LAKES
ALONG AN ACTIVE STORM TRACK WILL TO OUR NW.
AT THE SURFACE, AN INVERTED TROUGH OVER THE GA AND FL COASTAL WATERS
WILL SHARPEN EARLY IN THE COMING WEEK, POTENTIALLY BRINGING SOME
LIGHT SHOWERS TO OUR SE ZONES LATE MONDAY NIGHT INTO TUESDAY.
FORECAST TEMPERATURES DURING THIS PERIOD HAVE TICKED UP A FEW
DEGREES FROM 24 HOURS AGO. AS A RESULT, THE THREAT OF ANY FLURRIES
OR MIXED PRECIPITATION IS LOWER. WILL CONTINUE TO MONITOR, BUT NO
IMPACTS WOULD BE ANTICIPATED REGARDLESS.
LOW END SCATTERED SHOWERS ARE FORECAST TO SPREAD INTO THE AREA LATE
CHRISTMAS EVE INTO CHRISTMAS DAY AHEAD OF A WEAKENING COLD FRONT.
THE TIMING OF THIS PRECIPITATION IS A BIT LATER THAN IN YESTERDAY'S
FORECAST PACKAGE, AND THE BULK OF THE RAINFALL IS MORE CONFINED TO
THE N HALF OF THE COUNTY WARNING AREA. RAINFALL FROM THIS SYSTEM IS
STILL EXPECTED TO BE LIGHT, WITH MOST LOCATIONS RECEIVING LESS THAN
TWO TENTHS OF AN INCH.
TEMPERATURES IN THE EXTENDED PERIOD WILL START OFF COLD (5 TO 8
DEGREES BELOW NORMAL). HOWEVER, TEMPERATURES WILL WARM EACH DAY,
ENDING THE EXTENDED PERIOD 12 TO 15 DEGREES ABOVE NORMAL AT NIGHT
AND 3 TO 8 DEGREES ABOVE NORMAL DURING THE DAY.
SEC
AVIATION
(12Z TAFS)
ISSUED AT 616 AM EST SAT DEC 21 2024
POST-FRONTAL STRATOCUMULUS DECK (2-3KFT) ACROSS NORTHWEST GEORGIA
IS SLOWLY STARTED TO ERODE. ANTICIPATING THE DECK TO CLEAR THE ATL
SITES BETWEEN 14-15Z. NW WINDS WILL CONTINUE TO SLACKEN THROUGH
THE DAY, EVENTUALLY SHIFTING TO THE NE AFTER 06Z.
//ATL CONFIDENCE...12Z UPDATE...
MEDIUM CONFIDENCE ON CIGS.
HIGH CONFIDENCE ON REMAINING ELEMENTS.
07
PRELIMINARY POINT TEMPS/POPS
ATHENS 50 27 46 26 / 0 0 0 0
ATLANTA 47 29 47 29 / 0 0 0 0
BLAIRSVILLE 42 22 45 23 / 0 0 0 0
CARTERSVILLE 45 24 48 28 / 0 0 0 0
COLUMBUS 52 29 53 31 / 0 0 0 0
GAINESVILLE 49 28 45 27 / 0 0 0 0
MACON 52 29 51 28 / 0 0 0 0
ROME 45 24 48 27 / 0 0 0 0
PEACHTREE CITY 48 26 49 26 / 0 0 0 0
VIDALIA 54 32 53 31 / 0 0 0 0
FFC WATCHES/WARNINGS/ADVISORIES
NONE.
SHORT TERM...07
LONG TERM....SEC
AVIATION...07
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