Area Forecast Discussion Issued by NWS Atlanta, GA
000
FXUS62 KFFC 230800
AFDFFC
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
400 AM EDT THU MAY 23 2013
.SHORT TERM /TODAY THROUGH FRIDAY/...
UPPER LEVEL TROUGH MOVING THROUGH EASTERN SECTIONS OF GA INTO THE
CAROLINAS THIS MORNING. SHOWERS AND THUNDERSTORMS HAVE BEEN
DIMINISHING OVER EASTERN GA AND SHOULD CONTINUE TO DO SO. SOME
LINGERING DYNAMICS MAY SUPPORT SOME CONVECTION MAINLY ALONG THE
EASTERN SIDE OF THE CWA THIS MORNING AND HAVE CONTINUED WITH LOW
POPS FOR THAT AREA. DRIER AIR WILL SPREAD INTO THE CWA TODAY BEHIND
THE SHORT WAVE. HOWEVER...NORTH GA WILL BE ON THE SOUTHERN FRINGES
OF AN UPPER TROUGH DEEPENING INTO THE OHIO AND TENNESSEE VALLEYS
THIS AFTERNOON AND EVENING. SO...HAVE LEFT LOW POPS ACROSS THE
EXTREME NORTHERN COUNTIES THIS AFTERNOON UNTIL AROUND 06Z. OTHERWISE
STRONG NORTHWESTERLY FLOW BRINGING LOWER DEW POINTS AND MORE STABLE
AIR FOR THE REMAINDER OF THE SHORT TERM. NORTHWEST WINDS BECOMING
GUSTY TODAY BUT SHOULD STAY BELOW ADVISORY CRITERIA. SOMEWHAT COOLER
TEMPERATURES IN STORE TONIGHT AND FRIDAY. MAV/MET NUMBERS WERE CLOSE
AND ONLY MINOR TWEAKS WERE MADE.
41
.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
DRY WEATHER IS EXPECTED TO CONTINUE ACROSS THE AREA THROUGH SUNDAY
AND FOR THE MOST PART BASED ON THE GFS...THROUGH THURSDAY.
HOWEVER THE EUROPEAN MODEL IS INDICATING A WETTER NW FLOW ALOFT
ACROSS N AND PARTS OF CENTRAL GA STARTING SUNDAY NIGHT WITH A
WEAKER UPPER RIDGE AND GREATER POTENTIAL FOR SHORT WAVES TO AFFECT
THE AREA. CURRENT FORECAST HAS LOW POPS ACROSS N GA ON MONDAY AND
TUESDAY AND WILL JUST CONTINUE THAT FORECAST FOR NOW AS A
COMPROMISE. NO INSTABILITY TO SPEAK OFF UNTIL TUESDAY AFTERNOON
WHERE THERE MIGHT BE ENOUGH FOR THUNDERSTORMS OVER FAR N GA. UPPER
RIDGE OVER THE AREA FOR WEDNESDAY INTO THURSDAY. KEEPING POPS NIL
FOR WEDNESDAY EXCEPT FOR LOW POPS OVER THE NE MOUNTAINS WHERE
SOUTHERLY FLOW AND SOME INSTABILITY COULD CAUSE AFTERNOON SHOWERS
AND STORMS.
TEMPERATURES GENERALLY RUNNING WITHIN 6 DEGREES OF NORMAL THROUGH
THE PERIOD EXCEPT SATURDAY MORNING LOWS ARE RUNNING ABOUT 10-15
DEGREES BELOW NORMAL AND SUNDAY MORNING LOWS RUNNING ABOUT 6-12
DEGREES BELOW NORMAL.
BDL
&&
.AVIATION...
06Z UPDATE...
SHOWERS/THUNDERSTORMS HAVE MOVED PAST ALL TAF SITES EXCEPT ATHENS
AND MACON. SOME SCT TO BKN040 TO LINGER FOR THE REMAINDER OF THE
NIGHT. EXPECT VFR AFTER SUNRISE WITH SCT040-050. MVFR AND POSSIBLY
IFR FOG EXPECTED UNTIL 14Z MAINLY FOR PDK...AHN...MCN. ONLY ISOLATED
CONVECTION MAINLY NORTH AND EAST OF TAF SITES TODAY. WINDS WILL
BECOME NORTHWEST 10KT AFTER SUNRISE WITH GUSTS TO 20-25KT POSSIBLE.
//ATL CONFIDENCE...06Z UPDATE...
MEDIUM CONFIDENCE ON IFR FOG THIS MORNING.
HIGH CONFIDENCE ON ALL OTHER ELEMENTS.
41
&&
.PRELIMINARY POINT TEMPS/POPS...
ATHENS 86 58 80 46 / 20 5 0 0
ATLANTA 84 59 76 50 / 10 0 0 0
BLAIRSVILLE 79 53 73 40 / 20 20 0 0
CARTERSVILLE 85 56 77 44 / 10 5 0 0
COLUMBUS 87 63 84 55 / 10 0 0 0
GAINESVILLE 83 58 79 48 / 20 10 0 0
MACON 88 59 83 48 / 10 0 0 0
ROME 85 56 78 46 / 10 10 0 0
PEACHTREE CITY 84 56 78 46 / 10 0 0 0
VIDALIA 88 65 87 56 / 20 0 0 0
&&
.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$
SHORT TERM...41
LONG TERM....BDL
AVIATION...41