Special Weather Statement, NWS Atlanta, GA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
342 PM EDT MON JUL 28 2014

.SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...
BROAD TROUGH OVER THE EASTERN STATES CONTINUES TO DEEPEN INTO THE
SOUTH. AS A RESULT...A SURFACE FRONT HAS PUSHED SOUTH OF ATLANTA TO
ATHENS WITH DRIER AND MORE STABLE AIR FILTERING IN ACROSS NORTH GA.
AHEAD OF THE FRONT...THUNDERSTORMS WERE CURRENTLY DEVELOPING IN AREA
OF VERY HIGH CAPE AND TEMPERATURES IN THE LOW TO MID 90S. SPC HAS
ISSUED A SEVERE THUNDERSTORM WATCH FOR AREA JUST SOUTH OF A COLUMBUS
TO MACON LINE. THIS AREA SHOULD GRADUALLY STABILIZE BY EARLY EVENING
AS FRONT CONTINUES TO PUSH SOUTH. DEW POINTS WILL LOWER THROUGH THE
NIGHT...WITH LOW DEW POINTS CONTINUING THROUGH THE SHORT TERM.
OVERNIGHT LOWS MAY APPROACH RECORD MIN TEMPERATURES ESPECIALLY ON
TUESDAY NIGHT. EXPECTING A DRY DAY ACROSS THE ENTIRE FORECAST AREA
ON TUESDAY.

41

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
LITTLE CHANGE FROM MID SHIFT WEDNESDAY THRU FRIDAY. CANADIAN HIGH
PRESSURE WILL CONTINUE TO BRING COOLER AND DRIER AIR TO THE REGION
THRU MID WEEK BEFORE THE DEEP WAVE TROUGH AXIS SHIFTS INTO THE
AREA FOR THE WEEKEND. NW WILL TRANSITION TO SW FLOW WILL INCREASE
ENOUGH TO LEAD TO SCHC OF THUNDERSTORMS ON THURSDAY ACROSS THE
AREA. THIS WEEKEND A LONGWAVE TROUGH IS PROGGED TO STALL OUT OVER
THE REGION. THIS COULD LEAD TO HEAVY RAINFALL FOR THE WEEKEND. AT
THIS TIME THE GFS...ECMWF AND GEFS BOTH HOLD THE TROUGH AND SW IN
PLACE OVER THE REGION THIS WEEKEND. AS WE GET CLOSER TO THE
WEEKEND WE SHOULD HAVE BETTER CONFIDENCE IN POSSIBLE HEAVY
RAINFALL.

ARG

&&

.CLIMATE...

RECORDS FOR 07-28

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAHN     103 1952     75 1977     77 1936     59 1911
                            1926
   KATL     101 1952     69 1977     77 1981     62 1911
   KCSG     100 1993     81 1977     77 2010     67 1954
                1952
   KMCN     101 1993     76 1977     77 1958     62 1911
                1952                    1936

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

&&

.PREV DISCUSSION... /ISSUED 140 PM EDT MON JUL 28 2014/

AVIATION...
18Z UPDATE...
SURFACE FRONT JUST SOUTH OF ATL TO AHN. ACROSS CENTRAL GA SCATTERED
THUNDERSTORMS POSSIBLE THIS AFTERNOON WITH A FEW BECOMING STRONG.
CONVECTION ENDING EARLY EVENING. NORTH GA TAF SITES VFR THROUGH THE
PERIOD WITH SC TATTERED CUMULUS THIS AFTERNOON. WINDS WEST TO
NORTHWEST 10 TO 12KT WITH HIGHER GUSTS DIMINISHING AFTER 00Z. VFR ON
TUESDAY WITH NORTHWEST WINDS 10KT OCCASIONALLY GUSTY.

//ATL CONFIDENCE...18Z UPDATE...
MEDIUM CONCERNING CONVECTION... HIGH FOR ALL OTHER ELEMENTS.

41

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          64  87  64  86 /  10   5   5   5
ATLANTA         66  85  65  84 /  10   5   5   5
BLAIRSVILLE     60  79  55  78 /  10  10   5  10
CARTERSVILLE    62  84  61  84 /   5   5   5   5
COLUMBUS        67  89  66  86 /  20   5   5   5
GAINESVILLE     65  84  64  81 /  10   5   5   5
MACON           65  90  63  86 /  20   5   5   5
ROME            62  85  61  84 /   5   5   5   5
PEACHTREE CITY  63  85  60  85 /  10   5   5   5
VIDALIA         71  91  67  91 /  60   5   5   5

&&

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

SHORT TERM...41
LONG TERM....ARG
AVIATION...41

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1055 AM EDT MON JUL 28 2014

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-291500-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
1055 AM EDT MON JUL 28 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

...SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS
AFTERNOON AND EARLY EVENING ACROSS CENTRAL GEORGIA.  HEAT INDICES ARE
FORECAST TO BE NEAR 110 ACROSS EAST CENTRAL GEORGIA...

WEATHER HAZARDS EXPECTED...
HEAT INDICES ARE FORECAST TO BE FROM 105 TO 110 SOUTH AND EAST OF
A LINE FROM CORDELE TO SWAINSBORO. STRONG DAMAGING WINDS...SMALL
HAIL...FREQUENT LIGHTNING AND HEAVY RAIN ARE POSSIBLE WITH
THUNDERSTORMS THIS AFTERNOON SOUTH AND EAST OF A LINE FROM
COLUMBUS TO AUGUSTA.

DISCUSSION...
AN UNSEASONABLE COLD FRONT WILL MOVE THROUGH THE STATE TODAY. THE
FRONT WILL INTERACT WITH AN UNSTABLE AIRMASS ACROSS CENTRAL
GEORGIA THIS AFTERNOON AND LEAD TO THE DEVELOPMENT OF STRONG TO
SEVERE THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
A CHANCE OF THUNDERSTORMS RETURN TO THE AREA ON THURSDAY AND
REMAIN IN THE FORECAST FOR THE REST OF PERIOD.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED
TO SUBMIT REPORTS OF SEVERE WEATHER THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

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