Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

May 13, 2011Crisp County, Georgia

NWS Atlanta, GA issued this special weather statement at May 13, 2011, 9:10 PM EDT for Crisp 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, 9:10 PM EDT (01:10 UTC)
Expired
May 13, 2011, 9:45 PM EDT
In force
35 min
Issued by
NWS Atlanta, GA

County Crisp County, GA

The radar

The Robins AFB radar (KJGX), 98 km from the middle of the area, began a volume at 01:10 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.2 hours before the alert went out and 171 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2011-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 709 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2011-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
709 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1280 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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, 8:20 PM EDT, 50 minutes earlier.

Area forecast discussion, May 13, 8:20 PM EDT, 50 minutes before
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Hazardous weather outlook, May 13, 1:45 PM EDT, 7 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, 7:37 PM EDT, 1 hour 33 minutes before
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Local storm report, May 13, 8:13 PM EDT, 57 minutes before
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Local storm report, May 13, 8:37 PM EDT, 33 minutes before
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Local storm report, May 13, 8:47 PM EDT, 23 minutes before
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Special weather statement, May 13, 8:50 PM EDT, 20 minutes before
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Special weather statement, May 13, 9:10 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 8:50 PM EDTSpecial Weather StatementFFCCrisp40 min
May 14, 1:17 PM EDTSpecial Weather StatementFFCEmanuel, Johnson28 min
May 14, 2:12 PM EDTSpecial Weather StatementFFCBibb, Bleckley, Dooly, Houston, Jones, Peach and 2 more48 min
May 14, 2:33 PM EDTSpecial Weather StatementFFCEmanuel27 min
May 14, 2:54 PM EDTSpecial Weather StatementFFCBaldwin, Bleckley, Jones, Laurens, Twiggs, Wilkinson51 min
May 14, 3:36 PM EDTSevere Thunderstorm WarningFFCJohnson, Laurens, Washington, Wilkinson39 min
May 14, 3:39 PM EDTSpecial Weather StatementFFCHancock, Johnson, Laurens, Putnam, Washington36 min
May 14, 3:53 PM EDTSevere Thunderstorm WarningFFCGreene, Hancock, Putnam52 min
May 14, 4:13 PM EDTSevere Thunderstorm WarningFFCEmanuel, Jefferson, Johnson, Laurens, Washington62 min
May 14, 4:27 PM EDTSpecial Weather StatementFFCTaliaferro48 min
May 14, 5:01 PM EDTSevere Thunderstorm WarningFFCEmanuel, Treutlen44 min
May 14, 5:14 PM EDTSpecial Weather StatementFFCMontgomery, Telfair, Wheeler46 min
May 14, 5:41 PM EDTSpecial Weather StatementFFCTreutlen34 min
May 14, 5:55 PM EDTSpecial Weather StatementFFCMontgomery, Toombs, Wheeler50 min
May 14, 6:26 PM EDTSevere Thunderstorm WarningFFCMontgomery, Toombs49 min
May 14, 6:46 PM EDTSpecial Weather StatementFFCWilcox29 min
May 14, 6:53 PM EDTSevere Thunderstorm WarningFFCDodge, Wilcox52 min
May 14, 7:28 PM EDTSpecial Weather StatementFFCDodge32 min
May 14, 7:55 PM EDTSevere Thunderstorm WarningFFCLaurens25 min

Nearby

Special Weather Statements in Georgia, 2011Every 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.