Area Forecast Discussion
Issued by NWS Atlanta, GA

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FXUS62 KFFC 292357 AAA
AFDFFC

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
757 PM EDT TUE JUL 29 2014

.PREV DISCUSSION...

SHORT TERM /TONIGHT THROUGH WEDNESDAY NIGHT/...
/ISSUED 354 PM EDT TUE JUL 29 2014/
BROAD UPPER LEVEL TROUGH WILL CONTINUE TO KEEP THE STATE IN A
COOL/DRY PATTERN THROUGH THE SHORT TERM. EXPECT BELOW SEASONAL
TEMPERATURES THROUGH THE SHORT TERM...PARTICULARLY OVERNIGHT
TONIGHT WITH NEAR RECORD OR RECORD TEMPERATURES FORECAST. SEE THE
CLIMATE SECTION BELOW FOR MORE INFORMATION.

SURFACE HIGH WILL WEAKEN INTO LATE WEEK...AND WITH APPROACHING
DISTURBANCE AND MOIST SOUTHWEST FLOW ACROSS THE AREA...TRANSITIONING
THE STATE INTO AN OVERALL WET PATTERN INTO THE WEEKEND.

31

LONG TERM /THURSDAY THROUGH TUESDAY/...
/ISSUED 354 PM EDT TUE JUL 29 2014/
HAVE MADE NO CHANGES TO THE LONG TERM. BROAD LONG WAVE TROUGH
WILL REMAIN ACROSS THE EASTERN STATES THROUGH MUCH OF THE
PERIOD...FILLING SOME TOWARD THE BEGINNING OF THE WEEK. HOWEVER
SEVERAL SHORT WAVES MOVING THROUGH THE SOUTHERN STATES WILL KEEP A
CHANCE OF THUNDERSTORMS OVER THE AREA THROUGH THE PERIOD. PREVIOUS
DISCUSSION IS INCLUDED BELOW.

41

PREVIOUS...

/ISSUED AT 425 AM EDT TUE JUL 29 2014/
WEAK SURFACE HIGH PRESSURE OVER THE AREA TO START THE EXTENDED
FORECAST. AN UPPER LEVEL DEEP LONG WAVE TROUGH ALSO MOVES IN OVER
THE REGION IN THE SHORT TERM AND SETTLES IN THROUGH THE END OF THE
WEEK. THIS TROUGH PULLS IN SOME DRIER AIR AND LOWER DEW POINTS AND
COOLER TEMPERATURES THROUGH THU. BY THU MOISTURE BEGINS TO INCREASE
AGAIN ACROSS WESTERN AND SOUTHERN PORTION OF OUR CWA WITH
A FEW WAVES MOVING ACROSS THE AREA AND A FRONTAL SYSTEM MOVING IN BY
SUNDAY. WILL CONTINUE WITH DIURNALLY DRIVEN SLIGHT TO LOW CHANCE
POPS IN ACROSS THE AREA THROUGH DAYS 6 AND 7. TEMPS BEGIN TO
REBOUND THU AND LOOK TO GET BACK TO NEAR NORMAL VALUES BY THE
WEEKEND.

01

CLIMATE...

RECORDS FOR 07-29

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAHN     103 1952     69 1984     76 1993     60 1911
                                        1981
   KATL     103 1952     73 1984     77 1993     63 1977
                            1926        1986
                                        1896
   KCSG     101 1952     74 1984     78 2010     65 1994
   KMCN     104 1986     74 1984     78 1986     63 1897
                1952

RECORDS FOR 07-30

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAHN     102 1999     69 1984     76 2010     60 1925
                1915
   KATL      98 1986     68 1984     78 1896     61 1936
                1980
   KCSG     102 2010     76 1984     79 2010     65 1957
                1986
   KMCN     103 1986     74 1984     76 2010     62 1920
                                        2008
                                        1958

&&

.AVIATION...
00Z UPDATE...
MAIN CHALLENGE WITH THE TAFS THROUGH TOMORROW IS THE WIND
DIRECTION. OVERNIGHT THE WINDS SHOULD BECOME LIGHT AND SWITCH TO
THE NE TOMORROW MORNING. BY TOMORROW AFTERNOON...SOME DIFFERENCES
IN THE MODELS IN TERMS OF DIRECTION BETWEEN THE NE AND THE NW AT
ATL. HAVE SHOWN A SWITCH TO THE NW FOR THE AFTERNOON AT ATL...BUT
WILL HAVE TO MONITOR THIS.

//ATL CONFIDENCE...00Z UPDATE...
HIGH CONFIDENCE ON CIGS AND VSBYS. MEDIUM CONFIDENCE ON WIND
DIRECTION THROUGH THE MORNING...THEN LOW CONFIDENCE AFTER 18Z
TOMORROW.

11

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          61  87  66  86 /   0   0   5  20
ATLANTA         62  84  67  84 /   0   0   5  20
BLAIRSVILLE     53  80  61  78 /   0   0   5  20
CARTERSVILLE    56  85  61  84 /   0   0   5  20
COLUMBUS        64  87  67  89 /   0   0   5  10
GAINESVILLE     62  83  66  81 /   0   0   5  20
MACON           62  88  66  88 /   0   0   5  20
ROME            57  85  62  84 /   0   0   5  20
PEACHTREE CITY  57  85  61  85 /   0   0   5  20
VIDALIA         68  91  70  92 /   0   0   5  20

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...11
LONG TERM....17
AVIATION...11





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