Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 378, NWS Atlanta, GA

June 24, 2011Coweta County, Fayette County, Meriwether County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 24, 2011, 8:15 PM EDT for Coweta County, Fayette County, Meriwether County, Georgia. It was in force for 28 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 24, 2011, 8:15 PM EDT (00:15 UTC)
Expired
Jun 24, 2011, 8:43 PM EDT
In force
28 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Coweta County, GA, Fayette County, GA, Meriwether County, GA

The radar

The Atlanta radar (KFFC), 5 km from the middle of the area, began a volume at 00:15 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 24, 2:49 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.3 hours before the alert went out and 10 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 00:00Z on 2011-06-25Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2011-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
26 J/kg
Mixed-layer CIN
-532 J/kg
Mixed-layer LCL
1649 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
-20 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.

192 
WUUS52 KFFC 250015
SVRFFC
GAC077-113-199-250100-
/O.NEW.KFFC.SV.W.0378.110625T0015Z-110625T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
815 PM EDT FRI JUN 24 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FAYETTE COUNTY IN NORTH CENTRAL GEORGIA
  EASTERN COWETA COUNTY IN WEST CENTRAL GEORGIA
  NORTHERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 900 PM EDT

* AT 811 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 NORTHWEST OF TYRONE TO NORTH OF 
  MORELAND TO WEST OF GRANTVILLE...MOVING SOUTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SHARPSBURG...TURIN...LONE OAK...PEACHTREE CITY...LUTHERSVILLE...
  SENOIA...FAYETTEVILLE...HARALSON...BROOKS AND WOOLSEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THIS STORM MAY OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

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 3323 8489 3337 8475 3351 8471 3350 8461
      3355 8444 3350 8442 3347 8438 3343 8440
      3332 8438 3326 8444 3325 8451 3318 8450
      3310 8453 3310 8486 3322 8486
TIME...MOT...LOC 0014Z 295DEG 28KT 3350 8468 3337 8474
          3322 8494

$$
1 follow-up statement
847 
WWUS52 KFFC 250043
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
843 PM EDT FRI JUN 24 2011

GAC077-113-199-250051-
/O.CAN.KFFC.SV.W.0378.000000T0000Z-110625T0100Z/
MERIWETHER GA-COWETA GA-FAYETTE GA-
843 PM EDT FRI JUN 24 2011

...THE SEVERE THUNDERSTORM WARNING FOR FAYETTE...EASTERN COWETA AND
NORTHERN MERIWETHER COUNTIES IS CANCELLED...

THE THUNDERSTORMS HAVE WEAKENED AND ARE NO LONGER EXPECTED TO 
PRODUCE SEVERE WEATHER. HOWEVER...STRONG GUSTY WINDS UP TO 45 MPH...
VERY HEAVY RAIN...AND SMALL HAIL ARE STILL POSSIBLE WITH THESE 
STORMS. FOLKS ACROSS FAYETTE...EASTERN COWETA AND NORTHERN MERIWETHER 
COUNTIES SHOULD BE CAREFUL WHEN DRIVING DUE TO PONDING OF WATER ON 
ROADWAYS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR NORTHERN GEORGIA.

LAT...LON 3323 8489 3337 8475 3351 8471 3350 8461
      3355 8444 3350 8442 3347 8438 3343 8440
      3332 8438 3326 8444 3325 8451 3318 8450
      3310 8453 3310 8486 3322 8486
TIME...MOT...LOC 0041Z 295DEG 28KT 3340 8446 3327 8452
          3312 8472

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:48 PM EDTSpecial Weather StatementFFCButts, Clayton, Coweta, Fayette, Henry, Meriwether and 3 more42 min
Jun 24, 9:02 PM EDTSpecial Weather StatementFFCLamar, Monroe, Talbot, Upson43 min
Jun 24, 9:06 PM EDTSpecial Weather StatementFFCBaldwin, Glascock, Jefferson, Washington, Wilkinson39 min
Jun 24, 9:48 PM EDTSpecial Weather StatementFFCJefferson, Washington42 min
Jun 24, 10:24 PM EDTSpecial Weather StatementFFCGlascock, Jefferson, Johnson, Washington51 min
Jun 25, 5:40 PM EDTSpecial Weather StatementFFCFannin50 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.