Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

June 28, 2011Stewart County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 28, 2011, 3:35 PM EDT for Stewart County, Georgia. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 28, 2011, 3:35 PM EDT (19:35 UTC)
Expired: Jun 28, 2011, 4:00 PM EDT
In force: 25 min
Issued by: NWS Atlanta, GA

County Stewart County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.6 hours before the alert went out and 159 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2253 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Jun 28, 1:44 PM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Jun 28, 1:44 PM EDT, 1 hour 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
144 PM EDT TUE JUN 28 2011

.PREV DISCUSSION... /ISSUED 1032 AM EDT TUE JUN 28 2011/

UPDATE...
AREA OF SHOWERS/ISOLATED THUNDERSTORMS MOVING ACROSS EXTREME
NORTHWEST GEORGIA...WEAKENING AS IT PUSHES SOUTHEAST. BEST COVERAGE
AND STRONGER STORMS TO OUR WEST OVER ALABAMA. WITH AFTERNOON HEATING
AND A FRONT APPROACHING...STILL EXPECTING SHOWERS AND THUNDERSTORMS
TO BECOME MORE LIKELY THIS AFTERNOON INTO THIS EVENING AND HAVE
KEEP PREVIOUS FORECAST POPS GOING. HAVE BACKED OFF A TAD ON HIGHS
THIS AFTERNOON OVER EXTREME NORTHWEST COUNTIES WITH BROAD AREA OF
CLOUDS SPREADING INTO THAT AREA.

49

PREV DISCUSSION... /ISSUED 223 AM EDT TUE JUN 28 2011/

SHORT TERM /TODAY THROUGH THURSDAY/...
GUIDANCE A LITTLE MORE GENEROUS WITH POPS TODAY AHEAD OF THE COLD
FRONT ALTHOUGH FEEL POPS ARE STILL TOO LOW AND WILL BUMP UP TO
CHANCE/LIKELY WITH THE HIGHEST ACROSS NORTH GEORGIA. A WEAK WAVE IS
CURRENT MOVING ACROSS THE SOUTHERN APPALACHIANS INCLUDING THE
NORTHEAST MOUNTAINS. THIS HAS DEVELOPED A FEW THUNDERSTORMS ACROSS
OUR NORTHEAST MOUNTAIN COUNTIES AND THESE ARE MOVING EAST. THIS WAVE
SHOULD NOT BE A FACTOR BY 12Z. MODELS IN AGREEMENT WITH TIMING AND
LOCATION OF THE SURFACE COLD FRONT...DROPPING INTO NORTH GEORGIA
THIS AFTERNOON...AND MOVING INTO CENTRAL GEORGIA BY WEDNESDAY
MORNING. THIS WILL KEEP THE RISK OF CONVECTION GOING THROUGH
TONIGHT. THE FRONT STALLS ACROSS SOUTH GEORGIA AS A WEAK BACKDOOR
FRONT MOVES ACROSS NORTH GEORGIA ON THURSDAY. THIS WILL BE ENOUGH TO
KEEP SLIGHT CHANCE OF THUNDERSTORMS IN THE MOUNTAINS AND ALSO THE
EXTREME SOUTHEAST PART OF THE CWA DUE TO SEA BREEZE IN THE LATE
AFTERNOON.

LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
GFS/ECWMF BUILD A 595 HIGH OVER THE MID MISSISSIPPI VALLEY AT THE
END OF THIS WEEK...SHIFTING THE HIGH INTO KY/TN FOR THE WEEKEND.
THIS WILL BRING THE HOT TEMPERATURES BACK INTO THE CWA. DUE TO THE
PROXIMITY OF THE CENTER OF THE HIGH...THERE SHOULD BE ENOUGH
SUBSIDENCE TO KEEP THUNDERSTORM DEVELOPMENT TO A MINIMUM. THE RIDGE
BREAKS DOWN AND IS REPLACED BY A WEAKNESS IN THE PATTERN WHICH COULD
BE ENOUGH TO BRING A SLIGHTLY HIGHER CHANCE OF PRECIP BY THE END OF
THE LONG TERM.

17

&&

.AVIATION...
18Z UPDATE...
VFR FORECAST AT ALL SITES...WITH MVFR DUE TO AFTERNOON/EVENING
TSRA AND EARLY MORNING FOG. CONVECTION EXPECTED TO INITIATE AFTER
19Z AND MOVE THROUGH METRO ATL SITES TONIGHT. CONVECTION ALONG A
BOUNDARY NEARING CSG...COULD HELP INITIATION AT MCN. CSG MAY SEE
CHANCES OF TSRA FALL AFTER THOSE STORMS MOVE THROUGH...BUT MCN
COULD SEE A LONG NIGHT OF STORMS AS CONVECTION THAT MOVES FROM THE
NORTH COULD AFFECT THEM THROUGH 03Z. WINDS EXPECTED TO STAY W-NW
AT MOST SITES...EXCEPT AHN WHICH COULD GO E-NE TOMORROW.

//ATL CONFIDENCE...18Z UPDATE...
HIGH CONFIDENCE ON WINDS...CIGS...AND VSBYS.
MEDIUM CONFIDENCE ON PCPN AND CONVECTION TIMING.
PREFERRED CAE WRF NMM AND NAM BUFR/GFS BUFR BLEND.

10

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          93  71  93  69 /  60  60  10  10
ATLANTA         90  72  91  71 /  60  60  20  10
BLAIRSVILLE     85  66  84  63 /  60  40  10  10
CARTERSVILLE    89  69  89  64 /  60  40  10  10
COLUMBUS        93  73  93  72 /  50  50  40  10
GAINESVILLE     89  71  90  69 /  60  50  10  10
MACON           92  72  93  71 /  50  50  40  20
ROME            89  70  90  64 /  60  40  10   5
PEACHTREE CITY  90  68  90  67 /  60  60  20  10
VIDALIA         93  74  92  73 /  50  50  50  20

&&

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

Hazardous weather outlook, Jun 28, 5:15 AM EDT, 10 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
515 AM EDT TUE JUN 28 2011

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-290915-
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-
515 AM EDT TUE JUN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT
ISOLATED TO SCATTERED SEVERE THUNDERSTORMS EXPECTED THIS
AFTERNOON AND TONIGHT

.SYNOPSIS...
A WEAKENING COLD FRONT OVER THE TENNESSEE RIVER VALLEY WILL SINK
SOUTH INTO CENTRAL GEORGIA THROUGH TONIGHT.

.PRIMARY HAZARDS...
THE PRIMARY HAZARD FROM SCATTERED TO ISOLATED SEVERE THUNDERSTORMS
WILL BE FREQUENT CLOUD TO GROUND LIGHTNING...GUSTY WINDS TO 60
MPH...AND LOCALLY HEAVY RAIN. THE BEST LOCATION FOR SCATTERED SEVERE
STORMS WILL BE ACROSS NORTH GEORGIA WITH ISOLATED SEVERE STORMS
ACROSS CENTRAL GEORGIA THIS AFTERNOON AND TONIGHT.

.DISCUSSION...
A WEAKENING COLD FRONT OVER THE TENNESSEE RIVER VALLEY WILL SINK
SOUTH INTO CENTRAL GEORGIA THROUGH TONIGHT. A FEW WEAK WAVES ALONG
THE FRONT WILL ALSO MOVE INTO THE STATE BRINGING ISOLATED TO
SCATTERED SEVERE STORMS TO THE AREA. INSTABILITY INDICES INCREASE
THIS AFTERNOON WITH CAPES EXPECTED IN THE 2000 TO 2500 RANGE
ACROSS NORTH AND CENTRAL GEORGIA. THERE IS AN UPPER LEVEL RIDGE
BUILDING INTO THE REGION FROM THE WEST...BUT IT DOES NOT LOOK LIKE
IT WILL BE STRONG ENOUGH TO INHIBIT SEVERE WEATHER.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED WEDNESDAY AND
THURSDAY...AND AGAIN ON MONDAY. NO HAZARDOUS WEATHER EXPECTED
FRIDAY THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

In the hours before

Special weather statement, Jun 28, 2:20 PM EDT, 1 hour 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
220 PM EDT TUE JUN 28 2011

GAZ081-281845-
220 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN CRAWFORD COUNTY UNTIL 245 PM EDT...

AT 217 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 8 MILES WEST OF ROBERTA...MOVING SOUTHEAST AT 15
MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
CRAWFORD COUNTY THROUGH 245 PM EDT. SOME LOCATIONS IN THE PATH OF
THIS STORM INCLUDE FRIENDSHIP...HORNS...NAKOMIS...LEE POPE...
KNOXVILLE AND ROBERTA. BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF
WATER ON ROADWAYS.

&&

LAT...LON 3255 8404 3259 8407 3263 8407 3264 8406
      3268 8410 3267 8413 3269 8420 3280 8415
      3280 8413 3282 8412 3271 8379 3267 8381
      3253 8400
TIME...MOT...LOC 1820Z 296DEG 12KT 3272 8414

Special weather statement, Jun 28, 2:32 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
232 PM EDT TUE JUN 28 2011

GAZ089-090-281915-
232 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN MUSCOGEE AND CHATTAHOOCHEE COUNTIES UNTIL 315 PM EDT...

AT 231 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER SAND HILL...MOVING SOUTHEAST AT 15 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
MUSCOGEE AND CHATTAHOOCHEE COUNTIES THROUGH 315 PM EDT. SOME
LOCATIONS IN THE PATH OF THIS STORM INCLUDE VISTA TERRACE...HIGHLAND
PARK...SAINT MARYS HILLS...BENNING PARK...BENNING HILLS...CARTER
ACRES...BATTLE PARK...CUSTER ROAD TERRACE...SAND HILL...EDGEWOOD...
KENWOOD...NORTH FORT BENNING...EELBECK/WEST FORT BENNING...CUSSETA
AND CHRISTOPHER. BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON
ROADWAYS.

&&

LAT...LON 3239 8499 3241 8499 3242 8497 3245 8497
      3255 8489 3244 8466 3223 8466 3223 8477
TIME...MOT...LOC 1832Z 305DEG 11KT 3242 8485

Special weather statement, Jun 28, 3:12 PM EDT, 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
312 PM EDT TUE JUN 28 2011

GAZ083-095-281945-
312 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 35 MPH WINDS
IN TWIGGS AND HOUSTON COUNTIES UNTIL 345 PM EDT...

AT 308 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER CENTERVILLE...MOVING SOUTHEAST AT 15 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT MOVES ACROSS
TWIGGS AND HOUSTON COUNTIES THROUGH 345 PM EDT. SOME LOCATIONS IN THE
PATH OF THIS STORM INCLUDE ELBERTA...CENTERVILLE...WARNER ROBINS...
ROBINS AIR FORCE BASE...HOUSTON LAKE...BONAIRE...SAND BED...KATHLEEN
AND TARVERSVILLE. BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER
ON ROADWAYS.

&&

LAT...LON 3253 8372 3261 8371 3264 8372 3269 8370
      3266 8360 3270 8361 3271 8360 3253 8339
      3238 8359
TIME...MOT...LOC 1912Z 319DEG 12KT 3261 8365

Special weather statement, Jun 28, 3:14 PM EDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
314 PM EDT TUE JUN 28 2011

GAZ086-281945-
314 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 35 MPH WINDS
IN EMANUEL COUNTY UNTIL 345 PM EDT...

AT 309 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER SUMMERTOWN...MOVING EAST AT 30 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT MOVES ACROSS
EMANUEL COUNTY THROUGH 345 PM EDT. SOME LOCATIONS IN THE PATH OF THIS
STORM INCLUDE THREE POINTS...MODOC...COLEMANS LAKE...SUMMERTOWN...
CANOOCHEE...TWIN CITY AND GARFIELD. BRIEF HEAVY DOWNPOURS WILL CAUSE
PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3255 8202 3254 8204 3255 8207 3255 8209
      3261 8236 3283 8229 3283 8226 3281 8222
      3282 8216 3281 8213 3266 8208 3260 8200
TIME...MOT...LOC 1914Z 289DEG 26KT 3273 8221

Local storm report, Jun 28, 3:27 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
327 PM EDT TUE JUN 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 PM     TSTM WND DMG     1 ENE CENTERVILLE       32.64N 83.67W
06/28/2011                   HOUSTON            GA   NWS EMPLOYEE

            RETIRED NWS EMPLOYEE REPORTS A FEW DOWNED OAK LIMBS AND
            SPORADIC WIND GUSTS AROUND 50 MPH IN CENTERVILLE.

&&

RGARCIA

Special weather statement, Jun 28, 3:35 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
335 PM EDT TUE JUN 28 2011

GAZ102-282000-
335 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN STEWART COUNTY UNTIL 400 PM EDT...

AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF SANFORD...MOVING SOUTHEAST AT 20
MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
STEWART COUNTY THROUGH 400 PM EDT. SOME LOCATIONS IN THE PATH OF THIS
STORM INCLUDE FLORENCE MARINA STATE PARK...PROVIDENCE CANYON STATE
PARK AND SANFORD. BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER
ON ROADWAYS.

&&

LAT...LON 3192 8492 3195 8497 3197 8497 3197 8504
      3200 8507 3201 8506 3208 8506 3218 8497
      3196 8473 3193 8470 3191 8471
TIME...MOT...LOC 1935Z 306DEG 17KT 3198 8501

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 1:20 AM EDT	Special Weather Statement	FFC	Lumpkin, White	25 min
Jun 28, 1:45 AM EDT	Special Weather Statement	FFC	Lumpkin, White	30 min
Jun 28, 2:13 AM EDT	Special Weather Statement	FFC	White	47 min
Jun 28, 3:32 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 4:02 AM EDT	Special Weather Statement	FFC	Towns	28 min
Jun 28, 9:38 AM EDT	Special Weather Statement	FFC	Paulding, Polk	22 min
Jun 28, 12:57 PM EDT	Special Weather Statement	FFC	Harris	33 min
Jun 28, 1:43 PM EDT	Special Weather Statement	FFC	Talbot	47 min
Jun 28, 1:50 PM EDT	Special Weather Statement	FFC	Telfair	25 min
Jun 28, 2:20 PM EDT	Special Weather Statement	FFC	Crawford	25 min
Jun 28, 2:32 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	43 min
Jun 28, 2:42 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion	22 min
Jun 28, 3:12 PM EDT	Special Weather Statement	FFC	Houston	33 min
Jun 28, 3:14 PM EDT	Special Weather Statement	FFC	Emanuel	31 min
Jun 28, 3:41 PM EDT	Special Weather Statement	FFC	Wilcox	34 min
Jun 28, 4:30 PM EDT	Special Weather Statement	FFC	Emanuel, Montgomery, Toombs, Treutlen	45 min
Jun 28, 4:41 PM EDT	Special Weather Statement	FFC	Crisp	49 min
Jun 28, 4:50 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Sumter	40 min
Jun 28, 4:55 PM EDT	Special Weather Statement	FFC	Pulaski	50 min
Jun 28, 5:01 PM EDT	Special Weather Statement	FFC	Toombs	44 min
Jun 28, 5:45 PM EDT	Special Weather Statement	FFC	Laurens	30 min
Jun 28, 6:01 PM EDT	Severe Thunderstorm Warning	FFC	Laurens	29 min
Jun 28, 6:16 PM EDT	Special Weather Statement	FFC	Wheeler	44 min

Nearby

Special Weather Statements in Georgia, 2011 Every special weather statement in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.