Area Forecast Discussion
Issued by NWS Atlanta, GA

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000 FXUS62 KFFC 300157 AAB AFDFFC AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE PEACHTREE CITY GA 957 PM EDT TUE JUL 29 2014 .UPDATE... CLOUDS CONTINUE TO DISSIPATE THIS EVENING WITH THE LOSE OF DAYTIME HEATING. FORECAST IS ON TRACK AND ONLY MINOR CHANGES TO THE NEAR TERM HOURLY TRENDS. 11 && .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... /ISSUED 757 PM EDT TUE JUL 29 2014/ 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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