Special Weather Statement, NWS Atlanta, GA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
257 PM EDT THU JUL 10 2014

.SHORT TERM /TONIGHT THROUGH FRIDAY NIGHT/...
SLOW EVOLUTION OF THE PATTERN CONTINUES AS EXPECTED WITH THE UPPER
TROUGH AXIS SHIFTING SLOWLY EAST AND A VERY WEAK AND FAIRLY
INDISTINCT SURFACE FRONT SAGGING FURTHER INTO THE STATE AND
DISSIPATING. ALTHOUGH WHAT WEAK UPPER-LEVEL AND SURFACED BASED LIFT
WE HAVE SEEN CONTINUES TO DIMINISH...DIURNAL HEATING CONTINUES TO
DRIVE CONVECTION AND THIS DIURNAL PATTERN WILL PERSIST THROUGH THE
PERIOD.

SCATTERED CONVECTION ALREADY ON THE INCREASE ACROSS THE FORECAST
AREA EARLY THIS AFTERNOON. INSTABILITY IS MODERATE AT BEST AGAIN
TODAY AND ALTHOUGH WE HAVE A BIT LOWER PRECIPITABLE WATER VALUES
ACROSS THE FORECAST AREA...THE RELATIVELY SLOW MOVEMENT OF THE
CONVECTIVE ELEMENTS WILL LEAD TO SOME LOCAL HEAVY RAIN POTENTIAL.
COULD NOT RULE OUT AN ISOLATED STRONG TO MARGINALLY SEVERE STORM OR
TWO...BUT I AM NOT EXPECTING A WIDESPREAD THREAT. OUTSIDE OF THE
ABOVE MENTIONED LOCALLY HEAVY RAIN AND THE EVER-PRESENT LIGHTNING...
IT APPEARS THE MAIN SEVERE WEATHER THREAT WOULD BE STRONG...GUSTY
WINDS. SAME POTENTIAL IS SEEN FOR TOMORROW INTO TOMORROW EVENING
ALTHOUGH THE COVERAGE SHOULD BE LOWER AS DRIER AIR CONTINUES TO
FILTER INTO THE REGION AND WEAK UPPER RIDGING TRIES TO BUILD INTO
THE REGION...WITH THE HIGHEST CONCENTRATION ACROSS CENTRAL GEORGIA
AS WE ARE SEEING TODAY.

20

.LONG TERM /SATURDAY THROUGH THURSDAY/...
VERY FEW CHANGES MADE TO THE EXTENDED FORECAST THIS AFTERNOON.
EXTENDED BEGINS WITH TROUGH LIFTING WELL OUT OF THE AREA AND WEAK
RIDGING IN PLACE...BUT WITH LINGERING SURFACE TROUGHINESS
ESPECIALLY OVER CENTRAL GEORGIA. LOWERED POPS JUST A TAD FOR
SATURDAY AS GFS AND ECMWF ARE IN AGREEMENT THAT PRECIP WILL BE
MOSTLY SOUTHEAST OF THE AREA. NEXT THING TO WATCH WILL BE STRONG
SHORTWAVE THAT DIGS INTO THE UPPER MIDWEST EARLY NEXT WEEK...
WITH A CLOSED UPPER LOW DIVING DOWN INTO THE GREAT LAKES AND
PUSHING A COLD FRONT TOWARD THE SOUTHEAST BY TUESDAY. SEE NO
REASON TO LOWER LIKELY POPS ALREADY IN THE FORECAST FOR TUESDAY...
BUT THIS WILL OBVIOUSLY BE REFINED WITH ADDED DETAIL AS WE GET
CLOSER. RIGHT NOW SEVERE NOT OUT OF THE QUESTION BUT BEST CHANCES
WILL BE FURTHER NORTH. BELOW-NORMAL TEMPS EXPECTED THROUGH THE
REST OF THE EXTENDED. SEE PREVIOUS DISCUSSION BELOW.

TDP

PREV DISCUSSION... /ISSUED 332 AM EDT THU JUL 10 2014/
LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
BEST CHANCES FOR SHOWERS AND THUNDERSTORMS FRIDAY NIGHT WILL BE
ACROSS PARTS OF CENTRAL GA S AND E OF MCN WHERE THE BEST MOISTURE
AND INSTABILITY WILL BE S OF A STATIONARY FRONT.

THE PATTERN IS VERY SUMMER LIKE WITH HIT AND MISS SHOWERS AND
THUNDERSTORMS ACROSS THE AREA SATURDAY AND SUNDAY.

AN APPROACHING COLD FRONT WELL NORTH OF THE AREA ON MONDAY WILL
INCREASE CHANCES FOR SHOWERS AND THUNDERSTORMS SLIGHTLY WITH THE
MAIN EFFECTS OF THE FRONT BEING FELT ON TUESDAY AS THE FRONT MOVES
INTO THE AREA. SHOWERS AND THUNDERSTORMS WILL BE LIKELY ON TUESDAY
WITH POPS RUNNING 60-70 PERCENT AS THE SOUTHERN EDGE OF THE
WESTERLIES MOVE OVER THE AREA.

LINGERING EFFECTS OF THE FRONT CAN NE EXPECTED ON WEDNESDAY...MOST
SO OVER CENTRAL GA.

FORECAST TEMPERATURES WILL BE CLOSE TO NORMAL UNTIL THE FRONT MOVES
TO THE AREA THEN SLIGHTLY BELOW NORMAL.

BDL

&&

AVIATION...
18Z UPDATE...
VFR CONDITIONS ARE EXPECTED TO DOMINATE THE FORECAST AREA THROUGH
06Z OUTSIDE OF SCATTERED CONVECTION. MIXTURE OF IFR TO VFR
CONDITIONS 06Z THROUGH 14Z AS PATCHY FOG AND STRATUS DEVELOPS...
ESPECIALLY IN AREAS RECEIVING ANY RAINFALL THROUGH THE EVENING.
CONVECTION WILL BECOME ISOLATED AT BEST AFTER 03Z. WINDS WILL
CONTINUE WEST TO NORTHWEST MOST AREAS BETWEEN 3-7KTS THROUGH 00Z
THEN DIMINISH AND BECOME NORTHEAST OVERNIGHT. WIND SPEEDS INCREASE
AFTER 14Z INTO THE 3-7KT RANGE AND CONTINUE FROM THE EAST TO
NORTHEAST.

//ATL CONFIDENCE...18Z UPDATE...
MEDIUM TO HIGH.

20

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          70  90  70  92 /  50  30  20  20
ATLANTA         72  89  72  89 /  50  30  20  20
BLAIRSVILLE     64  85  66  86 /  50  30  30  20
CARTERSVILLE    68  89  68  90 /  40  20  20  20
COLUMBUS        72  93  72  92 /  50  40  30  20
GAINESVILLE     70  89  71  89 /  50  30  20  20
MACON           71  91  71  92 /  50  40  30  30
ROME            69  90  68  91 /  40  20  20  10
PEACHTREE CITY  69  90  68  90 /  50  30  20  20
VIDALIA         73  93  73  91 /  50  50  40  40

&&

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

SHORT TERM...20
LONG TERM....TDP
AVIATION...20

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
500 AM EDT THU JUL 10 2014

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-111000-
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-
500 AM EDT THU JUL 10 2014

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

.DAY ONE...TODAY AND TONIGHT...

...ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS
   AFTERNOON AND EVENING...

WEATHER HAZARDS EXPECTED...
STRONG GUSTY WINDS...FREQUENT LIGHTNING AND HEAVY RAIN.
THE MOST LIKELY TIME WILL BE THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

THUNDERSTORMS WILL BE POSSIBLE EACH DAY THROUGH MONDAY.
THE MAIN HAZARDS WILL BE GUSTY WINDS...FREQUENT LIGHTNING AND HEAVY
RAIN.

ANOTHER COLD FRONT IS EXPECTED TO MOVE INTO THE AREA TUESDAY INTO
WEDNESDAY. THUNDERSTORMS WILL BE LIKELY ON TUESDAY WITH CHANCES
CONTINUING ON WEDNESDAY...MOST SO OVER CENTRAL GEORGIA. THE MAIN
HAZARDS WILL BE STRONG GUSTY WINDS...FREQUENT LIGHTNING AND HEAVY
RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED TO
SUBMIT STRONG STORM REPORTS THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

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