Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

May 13, 2011Talbot County, Georgia

NWS Atlanta, GA issued this special weather statement at May 13, 2011, 7:10 PM EDT for Talbot County, Georgia. It was in force for 35 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 13, 2011, 7:10 PM EDT (23:10 UTC)
Expired: May 13, 2011, 7:45 PM EDT
In force: 35 min
Issued by: NWS Atlanta, GA

County Talbot County, GA

The radar

The Atlanta radar (KFFC), 69 km from the middle of the area, began a volume at 23:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.2 hours before the alert went out and 70 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: 696 J/kg
Mixed-layer CIN: -88 J/kg
Mixed-layer LCL: 1122 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 32 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 13, 5:25 PM EDT, 1 hour 45 minutes earlier.

Area forecast discussion, May 13, 5:25 PM EDT, 1 hour 45 minutes before

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Hazardous weather outlook, May 13, 1:45 PM EDT, 5 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
145 PM EDT FRI MAY 13 2011

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-140900-
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-
145 PM EDT FRI MAY 13 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
SCATTERED THUNDERSTORMS LIKELY LATE THIS AFTERNOON AND TONIGHT
ACROSS NORTH AND CENTRAL GEORGIA. ISOLATED SEVERE THUNDERSTORMS
POSSIBLE ACROSS PORTIONS OF NORTH GEORGIA THIS AFTERNOON AND EVENING.

.SYNOPSIS...
A WEAK UPPER LEVEL STORM SYSTEM WILL APPROACH GEORGIA TONIGHT. A
WEAK COLD FRONT WILL REMAIN WEST OF THE STATE THROUGH TONIGHT.

.PRIMARY HAZARDS...
ANY ISOLATED THUNDERSTORMS WILL PRODUCE A PERIOD OF HEAVY RAINFALL
AND DANGEROUS CLOUD TO GROUND LIGHTNING. A FEW STORMS MAY BECOME
STRONG TO SEVERE WITH HAIL AND DAMAGING WINDS. THE MOST LIKELY
LOCATION FOR SEVERE THUNDERSTORMS WILL BE NORTH OF A LINE FROM
BUCHANAN TO CUMMING TO GAINESVILLE THIS AFTERNOON AND EVENING.

.DISCUSSION...
THE ATMOSPHERE WILL BECOME SOMEWHAT UNSTABLE THIS AFTERNOON AND
EVENING. CAPE VALUES WILL RANGE BETWEEN 1000 AND 1500...THOUGH
VERTICAL WIND SHEAR WILL REMAIN SOMEWHAT WEAK. HOWEVER...EVEN WITH
THE WEAK SHEAR...A WEAK AREA OF LOW PRESSURE FROM NORTH GEORGIA INTO
EASTERN TENNESSEE WILL HELP TO FOCUS THE DEVELOPMENT OF
THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE SATURDAY AFTERNOON.
OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED THROUGH THURSDAY.

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

In the hours before

Local storm report, May 13, 4:44 PM EDT, 2 hours 26 minutes before

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Local storm report, May 13, 5:13 PM EDT, 1 hour 57 minutes before

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Special weather statement, May 13, 6:10 PM EDT, 1 hour before

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Special weather statement, May 13, 6:28 PM EDT, 42 minutes before

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Special weather statement, May 13, 6:48 PM EDT, 22 minutes before

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Special weather statement, May 13, 7:10 PM 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 13, 12:55 PM EDT	Special Weather Statement	FFC	Dade	50 min
May 13, 1:30 PM EDT	Special Weather Statement	FFC	Catoosa, Walker	45 min
May 13, 1:46 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd	44 min
May 13, 2:09 PM EDT	Special Weather Statement	FFC	Catoosa, Whitfield	51 min
May 13, 2:28 PM EDT	Special Weather Statement	FFC	Floyd, Gordon, Polk	47 min
May 13, 2:48 PM EDT	Special Weather Statement	FFC	Walker	27 min
May 13, 2:49 PM EDT	Special Weather Statement	FFC	Haralson	26 min
May 13, 2:56 PM EDT	Special Weather Statement	FFC	Murray	49 min
May 13, 3:07 PM EDT	Special Weather Statement	FFC	Gilmer, Pickens	38 min
May 13, 3:45 PM EDT	Special Weather Statement	FFC	Fannin	45 min
May 13, 3:55 PM EDT	Special Weather Statement	FFC	Forsyth	50 min
May 13, 4:39 PM EDT	Special Weather Statement	FFC	White	36 min
May 13, 6:10 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	65 min
May 13, 6:28 PM EDT	Special Weather Statement	FFC	Harris	47 min
May 13, 6:48 PM EDT	Special Weather Statement	FFC	Chattahoochee, Harris, Muscogee	42 min
May 13, 6:58 PM EDT	Severe Thunderstorm Warning	FFC	Harris	20 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; radar from the NEXRAD Level II archive.