Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 448, NWS Atlanta, GA

July 14, 2011Marion County, Schley County, Sumter County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 14, 2011, 4:41 PM EDT for Marion County, Schley County, Sumter County, Georgia. It was in force for 34 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 14, 2011, 4:41 PM EDT (20:41 UTC)
Expired
Jul 14, 2011, 5:15 PM EDT
In force
34 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Marion County, GA, Schley County, GA, Sumter County, GA

The radar

The Robins AFB radar (KJGX), 103 km from the middle of the area, began a volume at 20:44 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.

What was reported inside it

TimeReportWhereRemark
Jul 14, 4:49 PM EDTTSTM WND DMGLa Crosse, GA1 TREE DOWN
Jul 14, 4:50 PM EDTTSTM WND DMGEllaville, GA5 TREES DOWN AND SHINGLES BLOWN OFF ROOF.
Jul 14, 4:50 PM EDTTSTM WND DMGLeslie, GASEVERAL TREES DOWN ALONG HIGHWAY 280

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.7 hours before the alert went out and 142 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 2011-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1607 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2011-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 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
1607 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-29 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.

984 
WUUS52 KFFC 142041
SVRFFC
GAC197-249-261-142115-
/O.NEW.KFFC.SV.W.0448.110714T2041Z-110714T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
441 PM EDT THU JUL 14 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MARION COUNTY IN WEST CENTRAL GEORGIA
  SOUTHERN SCHLEY COUNTY IN WEST CENTRAL GEORGIA
  SUMTER COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 515 PM EDT

* AT 439 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZED
  HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM ANDERSONVILLE TO 7 MILES NORTH OF
  LESLIE TO 7 MILES EAST OF DESOTO...MOVING WEST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  AMERICUS AND ELLAVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL THE STORM HAS PASSED...AND THEN CALL THE NATIONAL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

&&

LAT...LON 3195 8425 3209 8441 3233 8451 3228 8422
      3223 8422 3223 8417 3204 8399 3193 8395
TIME...MOT...LOC 2042Z 104DEG 4KT 3220 8422 3206 8409
          3196 8395

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 8:45 AM EDTSpecial Weather StatementFFCOglethorpe30 min
Jul 14, 1:32 PM EDTSpecial Weather StatementFFCCrawford28 min
Jul 14, 1:48 PM EDTSpecial Weather StatementFFCChattahoochee27 min
Jul 14, 1:49 PM EDTSpecial Weather StatementFFCJeff Davis26 min
Jul 14, 1:52 PM EDTSpecial Weather StatementFFCMuscogee23 min
Jul 14, 2:06 PM EDTSpecial Weather StatementFFCWilcox24 min
Jul 14, 2:14 PM EDTSpecial Weather StatementFFCMuscogee31 min
Jul 14, 2:32 PM EDTSpecial Weather StatementFFCStewart28 min
Jul 14, 2:39 PM EDTSevere Thunderstorm WarningFFCStewart51 min
Jul 14, 2:57 PM EDTSpecial Weather StatementFFCDooly, Pulaski33 min
Jul 14, 3:02 PM EDTSpecial Weather StatementFFCTroup28 min
Jul 14, 3:06 PM EDTSpecial Weather StatementFFCStewart24 min
Jul 14, 3:23 PM EDTSpecial Weather StatementFFCTelfair, Wheeler37 min
Jul 14, 3:31 PM EDTSpecial Weather StatementFFCToombs29 min
Jul 14, 3:33 PM EDTSpecial Weather StatementFFCStewart, Webster27 min
Jul 14, 3:49 PM EDTSpecial Weather StatementFFCTelfair26 min
Jul 14, 3:57 PM EDTSpecial Weather StatementFFCCrisp33 min
Jul 14, 4:08 PM EDTSpecial Weather StatementFFCSumter, Webster37 min
Jul 14, 4:32 PM EDTSpecial Weather StatementFFCCrisp43 min
Jul 14, 4:34 PM EDTSpecial Weather StatementFFCDodge, Laurens41 min
Jul 14, 5:12 PM EDTSpecial Weather StatementFFCSumter48 min
Jul 14, 5:41 PM EDTSpecial Weather StatementFFCEmanuel, Johnson49 min
Jul 14, 5:47 PM EDTSpecial Weather StatementFFCCrawford, Houston, Peach43 min
Jul 14, 6:16 PM EDTSpecial Weather StatementFFCTalbot44 min
Jul 14, 6:19 PM EDTSpecial Weather StatementFFCJohnson26 min
Jul 14, 6:25 PM EDTSpecial Weather StatementFFCEmanuel35 min
Jul 14, 6:52 PM EDTSpecial Weather StatementFFCHarris38 min
Jul 14, 6:55 PM EDTSevere Thunderstorm WarningFFCHarris, Talbot35 min
Jul 14, 6:58 PM EDTSpecial Weather StatementFFCGlascock, Warren47 min
Jul 14, 7:00 PM EDTSpecial Weather StatementFFCCatoosa, Whitfield30 min
Jul 14, 7:17 PM EDTSpecial Weather StatementFFCCoweta, Pike43 min
Jul 14, 7:26 PM EDTSpecial Weather StatementFFCHarris49 min
Jul 14, 7:32 PM EDTSpecial Weather StatementFFCLamar43 min
Jul 14, 7:38 PM EDTSpecial Weather StatementFFCJefferson, Washington52 min
Jul 14, 7:56 PM EDTSpecial Weather StatementFFCHeard49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.