Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

June 23, 2011Twiggs County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 23, 2011, 12:06 PM EDT for Twiggs County, Georgia. It was in force for 24 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 23, 2011, 12:06 PM EDT (16:06 UTC)
Expired
Jun 23, 2011, 12:30 PM EDT
In force
24 min
Issued by
NWS Atlanta, GA

County Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 16 km from the middle of the area, began a volume at 16:09 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, 4.1 hours before the alert went out and 117 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 2011-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1756 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 2011-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
1756 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.8

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 23, 11:00 AM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Jun 23, 11:00 AM EDT, 1 hour 6 minutes before
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Hazardous weather outlook, Jun 23, 11:42 AM EDT, 24 minutes before
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In the hours before

Local storm report, Jun 23, 9:00 AM EDT, 3 hours 6 minutes before
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Special weather statement, Jun 23, 12:06 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1206 PM EDT THU JUN 23 2011

GAZ083-231630-
1206 PM EDT THU JUN 23 2011

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL AND 40 MPH WINDS
IN TWIGGS COUNTY UNTIL 1230 PM EDT...

AT 1201 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CENTERED NEAR HUBER OR 10 MILES SOUTHEAST OF
MACON...MOVING EAST AT 20 MPH. THIS STORM WILL AFFECT RIPLEY...MYRICKS
MILL...DRY BRANCH AND JEFFERSONVILLE. MOVE TO A SAFE PLACE IF THE
STORM THREATENS.

&&

LAT...LON 3266 8357 3266 8358 3267 8360 3274 8360
      3275 8359 3274 8357 3281 8350 3283 8349
      3285 8338 3274 8331 3265 8332 3263 8355
TIME...MOT...LOC 1605Z 262DEG 17KT 3273 8350

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 8:43 PM EDTSpecial Weather StatementFFCDawson, Fannin, Gilmer, Lumpkin, Towns, Union and 1 more47 min
Jun 22, 9:11 PM EDTSpecial Weather StatementFFCHall34 min
Jun 22, 9:31 PM EDTSpecial Weather StatementFFCWhite29 min
Jun 23, 5:05 AM EDTSpecial Weather StatementFFCForsyth, Hall25 min
Jun 23, 5:43 AM EDTSpecial Weather StatementFFCBanks, Hall32 min
Jun 23, 12:21 PM EDTSpecial Weather StatementFFCWilkinson24 min
Jun 23, 1:55 PM EDTSpecial Weather StatementFFCHancock35 min
Jun 23, 3:23 PM EDTSpecial Weather StatementFFCWashington37 min
Jun 23, 3:36 PM EDTSpecial Weather StatementFFCWheeler39 min
Jun 23, 4:16 PM EDTSpecial Weather StatementFFCMontgomery, Toombs, Wheeler44 min
Jun 23, 4:18 PM EDTSpecial Weather StatementFFCCarroll27 min
Jun 23, 4:29 PM EDTSpecial Weather StatementFFCChattahoochee, Marion, Stewart, Webster46 min
Jun 23, 4:37 PM EDTSevere Thunderstorm WarningFFCMontgomery, Toombs38 min
Jun 23, 4:43 PM EDTSpecial Weather StatementFFCCoweta32 min
Jun 23, 5:13 PM EDTSpecial Weather StatementFFCFayette47 min
Jun 23, 5:17 PM EDTSpecial Weather StatementFFCChattahoochee, Marion, Muscogee, Schley43 min
Jun 23, 6:06 PM EDTSpecial Weather StatementFFCTalbot39 min
Jun 23, 6:21 PM EDTSpecial Weather StatementFFCButts, Henry, Spalding39 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.