Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

December 22, 2011Marion County, Schley County, Taylor County, Georgia

NWS Atlanta, GA issued this special weather statement at Dec 22, 2011, 6:35 PM EST for Marion County, Schley County, Taylor 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
Dec 22, 2011, 6:35 PM EST (23:35 UTC)
Expired
Dec 22, 2011, 7:00 PM EST
In force
25 min
Issued by
NWS Atlanta, GA

Counties Marion County, GA, Schley County, GA, Taylor County, GA

The radar

The Robins AFB radar (KJGX), 99 km from the middle of the area, began a volume at 23:39 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, 11.6 hours before the alert went out and 113 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-12-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 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, Peachtre/Fal Fld, GA at 12:00Z on 2011-12-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939587897Sfc1 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
26 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
123 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 Dec 22, 6:25 PM EST, 10 minutes earlier.

Area forecast discussion, Dec 22, 6:25 PM EST, 10 minutes before
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Hazardous weather outlook, Dec 22, 2:42 PM EST, 3 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
242 PM EST THU DEC 22 2011

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-230945-
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-
242 PM EST THU DEC 22 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH MID EVENING OVER
NORTH GEORGIA...MAINLY WEST OF A BLAIRSVILLE TO ATLANTA TO COLUMBUS
LINE. ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS EVENING
OVER MIDDLE GEORGIA...MAINLY WEST OF AN WASHINGTON TO EASTMAN LINE.

.SYNOPSIS...
RICH MOISTURE AHEAD OF A STRONG STORM SYSTEM SHOULD PROVIDE
SUFFICIENT INSTABILITY FOR ISOLATED TO SCATTERED SEVERE
THUNDERSTORMS THROUGH MIDNIGHT ACROSS NORTH AND CENTRAL GEORGIA.

.PRIMARY HAZARDS...
DAMAGING WINDS AND ISOLATED TORNADOES WILL BE POSSIBLE WITH ANY
SEVERE THUNDERSTORMS. THE MOST LIKELY TIME FOR SEVERE WEATHER WILL
BE FROM 4 PM UNTIL 9 PM.

.DISCUSSION...
RICH LOW LEVEL MOISTURE AND UNUSUALLY STRONG VERTICAL WIND SHEAR
IN THE LOW LEVELS SHOULD BE SUFFICIENT FOR A FEW LINEAR OR QUASI-
LINEAR THUNDERSTORMS THIS AFTERNOON AND EVENING. THE INSTABILITY
IS EXPECTED TO DECREASE TONIGHT AND SHOULD PRECLUDE THE
DEVELOPMENT OF SEVERE THUNDERSTORMS AFTER MIDNIGHT. HOWEVER...
SEVERE STORMS THAT DO DEVELOP THROUGH MID EVENING COULD PRODUCE A
BRIEF TORNADO.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS SHOULD MONITOR THE LATEST INFORMATION FOR POSSIBLE
ACTIVATION ACROSS AREAS WEST OF BLAIRSVILLE TO ATLANTA TO
COLUMBUS THIS AFTERNOON THROUGH ABOUT 9 PM THIS EVENING.

In the hours before

Special weather statement, Dec 22, 6:08 PM EST, 27 minutes before
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Local storm report, Dec 22, 6:10 PM EST, 25 minutes before
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Local storm report, Dec 22, 6:18 PM EST, 17 minutes before
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Local storm report, Dec 22, 6:29 PM EST, 6 minutes before
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Local storm report, Dec 22, 6:33 PM EST, 2 minutes before
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Special weather statement, Dec 22, 6:35 PM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 9:11 PM ESTDense Fog AdvisoryFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 47 more11 hr
Dec 22, 8:04 AM ESTDense Fog AdvisoryFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 47 more116 min
Dec 22, 3:51 PM ESTSpecial Weather StatementFFCChattooga, Floyd, Haralson, Polk39 min
Dec 22, 4:14 PM ESTSpecial Weather StatementFFCCarroll61 min
Dec 22, 4:26 PM ESTSevere Thunderstorm WarningFFCHaralson, Polk32 min
Dec 22, 4:34 PM ESTSpecial Weather StatementFFCTowns, Union26 min
Dec 22, 4:37 PM ESTSpecial Weather StatementFFCBartow, Catoosa, Chattooga, Floyd, Gordon, Murray and 2 more53 min
Dec 22, 4:39 PM ESTSpecial Weather StatementFFCHeard, Troup66 min
Dec 22, 4:52 PM ESTSevere Thunderstorm WarningFFCBartow, Floyd, Gordon23 min
Dec 22, 4:56 PM ESTSpecial Weather StatementFFCPaulding34 min
Dec 22, 5:13 PM ESTSevere Thunderstorm WarningFFCGordon32 min
Dec 22, 5:15 PM ESTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fulton, Heard45 min
Dec 22, 5:23 PM ESTSevere Thunderstorm WarningFFCGilmer, Murray, Pickens25 min
Dec 22, 5:29 PM ESTSpecial Weather StatementFFCCherokee, Dawson, Forsyth, Pickens31 min
Dec 22, 5:32 PM ESTSevere Thunderstorm WarningFFCCoweta, Fayette, Meriwether, Troup43 min
Dec 22, 5:36 PM ESTSpecial Weather StatementFFCCobb24 min
Dec 22, 5:40 PM ESTSpecial Weather StatementFFCMeriwether35 min
Dec 22, 5:44 PM ESTTornado WarningFFCCoweta, Fayette, Meriwether46 min
Dec 22, 6:02 PM ESTSevere Thunderstorm WarningFFCHarris, Meriwether, Pike, Talbot, Upson43 min
Dec 22, 6:08 PM ESTSpecial Weather StatementFFCDeKalb, Forsyth, Fulton, Gwinnett, Hall37 min
Dec 22, 6:11 PM ESTSevere Thunderstorm WarningFFCClayton, Fayette, Henry, Pike, Spalding49 min
Dec 22, 6:35 PM ESTSevere Thunderstorm WarningFFCHall27 min
Dec 22, 6:43 PM ESTSpecial Weather StatementFFCLamar, Monroe, Upson47 min
Dec 22, 6:58 PM ESTSpecial Weather StatementFFCBanks, Barrow, Clarke, Gwinnett, Jackson, Madison and 1 more47 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.