Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

May 30, 201211 counties in Georgia

NWS Atlanta, GA issued this special weather statement at May 30, 2012, 2:17 AM EDT for 11 counties in Georgia. It was in force for 43 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: May 30, 2012, 2:17 AM EDT (06:17 UTC)
Expired: May 30, 2012, 3:00 AM EDT
In force: 43 min
Issued by: NWS Atlanta, GA

Counties Chattahoochee County, GA, Crawford County, GA, Macon County, GA, Marion County, GA, Muscogee County, GA, Peach County, GA, Schley County, GA, Stewart County, GA, Talbot County, GA, Taylor County, GA, Webster County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.3 hours before the alert went out and 123 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: 341 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1320 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: -15 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 May 30, 1:53 AM EDT, 24 minutes earlier.

Area forecast discussion, May 30, 1:53 AM EDT, 24 minutes before

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Hazardous weather outlook, May 29, 9:50 PM EDT, 4 hours 27 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
950 PM EDT TUE MAY 29 2012

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-310200-
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-
950 PM EDT TUE MAY 29 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT...
ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE OVER NORTHERN
GEORGIA TONIGHT.

.SYNOPSIS...
DISTURBANCES MOVE INTO NORTHWEST GEORGIA FROM TENNESSEE...AS
TROPICAL DEPRESSION BERYL MOVES INTO SOUTH CAROLINA.

.PRIMARY HAZARDS...
LARGE HAIL...STRONG WINDS...AND OCCASIONAL CLOUD-TO-GROUND LIGHTNING
ARE THE PRIMARY HAZARDS WITH ISOLATED STRONG TO SEVERE
THUNDERSTORMS TONIGHT.

.DISCUSSION...
PLENTY OF AVAILABLE MOISTURE AND INSTABILITY...WITH MUCAPE VALUES
NEARING 2500 IN NORTHWEST GEORGIA THIS EVENING...CREATE A CHANCE
FOR ISOLATED STRONG TO SEVERE THUNDERSTORMS...MAINLY OVER NORTHERN
GEORGIA.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ON WEDNESDAY... WITH A
MORE SIGNIFICANT CHANCE OF THUNDERSTORMS FOR THURSDAY THROUGH
FRIDAY NIGHT AS A DEVELOPING LOW PRESSURE SYSTEM AND ASSOCIATED
FRONTAL BOUNDARIES INFLUENCE THE AREA.

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

RAG/JM

In the hours before

Special weather statement, May 30, 12:02 AM EDT, 2 hours 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1202 AM EDT WED MAY 30 2012

GAZ006>009-013>016-021-022-032-033-300430-
1202 AM EDT WED MAY 30 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 45 MPH WINDS
IN WHITE...UNION...TOWNS...PICKENS...LUMPKIN...CHEROKEE...COBB...
DAWSON...FANNIN...FORSYTH...GILMER AND FULTON COUNTIES UNTIL 1230 AM
EDT...

AT 1156 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM BLAIRSVILLE TO SUCHES...JASPER...
DAWSONVILLE...CANTON AND ACWORTH...MOVING EAST AT 20 MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS THEY MOVE
ACROSS WHITE...UNION...TOWNS...PICKENS...LUMPKIN...CHEROKEE...COBB...
DAWSON...FANNIN...FORSYTH...GILMER AND FULTON COUNTIES THROUGH 1230
AM EDT. SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE MARION...
ACWORTH...CAMP MERRILL...NIMBLEWILL...FAUSETT LAKE...AMICALOLA FALLS
STATE PARK...THE LEN FOOTE HIKE INN...WOODSTOCK...LEBANON...HOLLY
SPRINGS...BUFFINGTON...CANTON...BALL GROUND...REAVIS MOUNTAIN AND
KELLOGG CREEK. HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON
ROADWAYS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3500 8360 3480 8367 3476 8363 3465 8366
      3454 8362 3450 8367 3451 8384 3442 8398
      3434 8400 3428 8393 3415 8409 3405 8410
      3399 8420 3397 8435 3390 8436 3397 8474
      3408 8474 3408 8466 3471 8432 3499 8403
TIME...MOT...LOC 0401Z 281DEG 17KT 3498 8394 3469 8399
          3439 8429 3414 8447 3397 8468

Special weather statement, May 30, 12:20 AM EDT, 1 hour 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1220 AM EDT WED MAY 30 2012

GAZ022-023-032>034-044-045-052>055-300500-
1220 AM EDT WED MAY 30 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 45 MPH WINDS
IN COBB...COWETA...DEKALB...FAYETTE...FORSYTH...GWINNETT...HALL...
HEARD...CLAYTON AND FULTON COUNTIES UNTIL 100 AM EDT...

AT 1214 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED GUSTY
WINDS AHEAD OF A LINE OF STRONG THUNDERSTORMS FROM CUMMING TO VININGS
AND CARROLLTON...MOVING SOUTHEAST AT 35 MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 45 MPH AS THEY MOVE
ACROSS COBB...COWETA...DEKALB...FAYETTE...FORSYTH...GWINNETT...
HALL...HEARD...CLAYTON AND FULTON COUNTIES THROUGH 100 AM EDT. SOME
LOCATIONS IN THE PATH OF THESE STORMS INCLUDE MOUNTAIN PARK...
DUNWOODY...BOLTON...BIRMINGHAM...CHASTAIN MEMORIAL PARK...MILTON...
SANDY SPRINGS...ROSWELL...ALPHARETTA...EPHESUS...MURRAYVILLE...
CLERMONT...BROOKWOOD...HIGHTOWER AND CHESTATEE. HEAVY DOWNPOURS WILL
CAUSE PONDING OF WATER ON ROADWAYS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3343 8530 3344 8494 3366 8465 3398 8437
      3410 8442 3419 8426 3433 8426 3433 8395
      3447 8393 3450 8366 3430 8362 3413 8382
      3400 8387 3392 8381 3361 8412 3364 8428
      3344 8429 3326 8444 3318 8526
TIME...MOT...LOC 0419Z 303DEG 30KT 3430 8393 3399 8423
          3372 8451 3333 8536

Special weather statement, May 30, 12:58 AM EDT, 1 hour 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1258 AM EDT WED MAY 30 2012

GAZ044-052>057-066>068-300600-
1258 AM EDT WED MAY 30 2012

...SIGNIFICANT WEATHER ADVISORY FOR 35 MPH WINDS IN TROUP...
SPALDING...PIKE...MERIWETHER...COWETA...FAYETTE...HEARD...HENRY...
CLAYTON AND FULTON COUNTIES UNTIL 200 AM EDT...

AT 1251 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED GUSTY
WINDS AHEAD OF AN AREA OF STRONG THUNDERSTORMS FROM COLLEGE PARK TO
NEWNAN AND FRANKLIN...MOVING SOUTHEAST AT 25 MPH.

WIND GUSTS OF 35 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS TROUP...
SPALDING...PIKE...MERIWETHER...COWETA...FAYETTE...HEARD...HENRY...
CLAYTON AND FULTON COUNTIES THROUGH 200 AM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE TYRONE...SANDTOWN...CAMPBELLTON...
CHATTAHOOCHEE HILL COUNTRY...UNION CITY...PALMETTO...HAPEVILLE...
FAIRBURN...EAST POINT...COLLEGE PARK...HARTSFIELD-JACKSON AIRPORT...
SANDY CREEK...THOMAS CROSSROADS...POWERS CROSSROADS AND ARNCO-SARGENT.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3343 8529 3344 8492 3352 8482 3360 8478
      3366 8466 3374 8458 3368 8441 3332 8407
      3325 8412 3318 8413 3319 8425 3299 8427
      3299 8448 3297 8453 3288 8451 3285 8456
      3287 8485 3287 8518
TIME...MOT...LOC 0456Z 322DEG 22KT 3359 8446 3337 8470
          3316 8529

Local storm report, May 30, 1:06 AM EDT, 1 hour 11 minutes before

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Special weather statement, May 30, 1:47 AM EDT, 30 minutes before

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Special weather statement, May 30, 2:17 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 9:03 PM EDT	Special Weather Statement	FFC	Catoosa, Dade	42 min
May 29, 9:23 PM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Walker	37 min
May 29, 9:58 PM EDT	Special Weather Statement	FFC	Catoosa, Chattooga, Gordon, Murray, Walker, Whitfield	62 min
May 29, 10:06 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga	24 min
May 29, 10:22 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	23 min
May 29, 10:43 PM EDT	Special Weather Statement	FFC	Chattooga, Fannin, Floyd, Gilmer, Gordon, Murray and 3 more	47 min
May 29, 10:59 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Floyd	31 min
May 29, 11:19 PM EDT	Special Weather Statement	FFC	Cherokee, Fannin, Gilmer, Pickens, Union	41 min
May 29, 11:29 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Cobb, Paulding	46 min
May 29, 11:50 PM EDT	Special Weather Statement	FFC	Carroll, Cobb, Douglas, Haralson, Paulding	40 min
May 30, 12:02 AM EDT	Special Weather Statement	FFC	Cherokee, Cobb, Dawson, Forsyth, Lumpkin, Towns and 2 more	28 min
May 30, 12:20 AM EDT	Special Weather Statement	FFC	Clayton, Coweta, DeKalb, Fayette, Forsyth, Fulton and 3 more	40 min
May 30, 12:58 AM EDT	Special Weather Statement	FFC	Clayton, Coweta, Fayette, Heard, Meriwether, Pike and 2 more	62 min
May 30, 1:47 AM EDT	Special Weather Statement	FFC	Harris, Lamar, Monroe, Muscogee, Talbot, Upson	58 min
May 30, 6:42 PM EDT	Special Weather Statement	FFC	Twiggs	33 min

Nearby

Special Weather Statements in Georgia, 2012 Every special weather statement in 2012

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.