Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 197, NWS Atlanta, GA

July 11, 20165 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 11, 2016, 3:39 PM EDT for 5 counties in Georgia. It was in force for 51 min. 2 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 11, 2016, 3:39 PM EDT (19:39 UTC)
Expired
Jul 11, 2016, 4:30 PM EDT
In force
51 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Marion County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Webster County, GA

The radar

The Ft Rucker radar (KEOX), 113 km from the middle of the area, began a volume at 19:43 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 11, 4:00 PM EDTTSTM WND DMG1 Sw Preston, GAA ROOF WAS BLOWN OFF A SMALL OFFICE BUILDING NEAR THE INTERSECTION OF WASHINGTON STREET AND INDUSTRIAL DRIVE.
Jul 11, 4:00 PM EDTTSTM WND DMGPreston, GASEVERAL TREES AND POWERLINES WERE BLOWN DOWN IN PRESTON. ONE TREE FELL ON A HOUSE.

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, 7.7 hours before the alert went out and 146 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 2016-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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 2016-07-11The 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
133 J/kg
Mixed-layer CIN
-205 J/kg
Mixed-layer LCL
1028 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

876 
WUUS52 KFFC 111939
SVRFFC
GAC197-249-259-261-307-112030-
/O.NEW.KFFC.SV.W.0197.160711T1939Z-160711T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
339 PM EDT MON JUL 11 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SCHLEY COUNTY IN GEORGIA...
  SOUTHERN MARION COUNTY IN GEORGIA...
  SOUTHEASTERN STEWART COUNTY IN GEORGIA...
  NORTHWESTERN SUMTER COUNTY IN GEORGIA...
  WEBSTER COUNTY IN GEORGIA...

* UNTIL 430 PM EDT

* AT 338 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PRESTON...
  MOVING NORTHEAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  AMERICUS...BUENA
  VISTA...ELLAVILLE...PRESTON...RICHLAND...PLAINS...
  WESTON...PUTNAM...SEMINOLE...DOYLE...TROUTMAN...DRANEVILLE...LA
  CROSSE... FRIENDSHIP...CHURCH HILL...MURRAYS CROSSROADS...WALLS
  CROSSING... KIMBROUGH...CENTERPOINT AND LEVERETTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...HAIL OR 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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3192 8467 3193 8468 3192 8469 3192 8472
      3206 8475 3234 8450 3233 8426 3230 8426
      3230 8423 3210 8422 3193 8440 3197 8444
      3193 8444 3192 8446
TIME...MOT...LOC 1938Z 231DEG 39KT 3205 8460 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
372 
WWUS52 KFFC 112006
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
406 PM EDT MON JUL 11 2016

GAC259-112016-
/O.CAN.KFFC.SV.W.0197.000000T0000Z-160711T2030Z/
STEWART GA-
406 PM EDT MON JUL 11 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STEWART COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 3192 8466 3196 8465 3196 8464 3197 8465
      3198 8464 3203 8465 3203 8464 3215 8464
      3216 8465 3234 8450 3233 8426 3230 8426
      3230 8423 3210 8422 3193 8440 3197 8444
      3193 8444 3192 8446
TIME...MOT...LOC 2006Z 231DEG 39KT 3224 8432 

$$

GAC197-249-261-307-112030-
/O.CON.KFFC.SV.W.0197.000000T0000Z-160711T2030Z/
SCHLEY GA-MARION GA-SUMTER GA-WEBSTER GA-
406 PM EDT MON JUL 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SCHLEY...SOUTHEASTERN MARION...NORTHWESTERN SUMTER AND WEBSTER
COUNTIES...

AT 406 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER ELLAVILLE...
MOVING NORTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
AMERICUS...BUENA
VISTA...ELLAVILLE...PRESTON...PLAINS...WESTON...PUTNAM...
SEMINOLE...DOYLE...DRANEVILLE...LA CROSSE...FRIENDSHIP...CHURCH
HILL... MURRAYS CROSSROADS...WALLS
CROSSING...CENTERPOINT...LEVERETTS...DUMAS AND CHAMBLISS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...HAIL OR 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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3192 8466 3196 8465 3196 8464 3197 8465
      3198 8464 3203 8465 3203 8464 3215 8464
      3216 8465 3234 8450 3233 8426 3230 8426
      3230 8423 3210 8422 3193 8440 3197 8444
      3193 8444 3192 8446
TIME...MOT...LOC 2006Z 231DEG 39KT 3224 8432 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 3:24 PM EDTSpecial Weather StatementFFCWebster36 min
Jul 11, 4:41 PM EDTSpecial Weather StatementFFCHarris34 min
Jul 11, 5:08 PM EDTSevere Thunderstorm WarningFFCHarris, Meriwether, Talbot, Troup52 min
Jul 11, 5:10 PM EDTSpecial Weather StatementFFCTroup35 min
Jul 11, 5:31 PM EDTSevere Thunderstorm WarningFFCCoweta, Fayette, Meriwether, Troup44 min
Jul 11, 6:02 PM EDTSpecial Weather StatementFFCFulton28 min
Jul 11, 6:06 PM EDTSpecial Weather StatementFFCCobb39 min
Jul 11, 6:12 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Cobb, Forsyth, Fulton, Paulding48 min
Jul 11, 6:13 PM EDTSevere Thunderstorm WarningFFCClayton, Fayette32 min
Jul 11, 6:16 PM EDTSevere Thunderstorm WarningFFCHenry29 min
Jul 11, 6:31 PM EDTSevere Thunderstorm WarningFFCDeKalb, Gwinnett, Newton, Rockdale, Walton29 min
Jul 11, 7:01 PM EDTSpecial Weather StatementFFCBartow, Cherokee, Dawson, Floyd, Forsyth, Gordon and 3 more44 min
Jul 11, 7:01 PM EDTSevere Thunderstorm WarningFFCBarrow, DeKalb, Gwinnett, Newton, Rockdale, Walton29 min
Jul 11, 7:09 PM EDTSevere Thunderstorm WarningFFCCherokee, Pickens36 min
Jul 11, 7:33 PM EDTSpecial Weather StatementFFCBarrow, Gwinnett, Jackson, Oconee, Walton27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016Every severe thunderstorm warning in 2016

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.