Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 360, NWS Atlanta, GA

September 3, 2015Coweta County, Meriwether County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 3, 2015, 5:32 PM EDT for Coweta 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
Sep 3, 2015, 5:32 PM EDT (21:32 UTC)
Expired
Sep 3, 2015, 6:00 PM EDT
In force
28 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Coweta County, GA, Meriwether County, GA

The radar

The Atlanta radar (KFFC), 25 km from the middle of the area, began a volume at 21:33 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, 9.5 hours before the alert went out and 30 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 2015-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 734 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 2015-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
734 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

483 
WUUS52 KFFC 032132
SVRFFC
GAC077-199-032200-
/O.NEW.KFFC.SV.W.0360.150903T2132Z-150903T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
532 PM EDT THU SEP 3 2015

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MERIWETHER COUNTY IN WEST CENTRAL GEORGIA...
  SOUTH CENTRAL COWETA COUNTY IN WEST CENTRAL GEORGIA...

* UNTIL 600 PM EDT

* AT 532 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MORELAND...
  OR 7 MILES SOUTH OF NEWNAN...MOVING SOUTH AT 10 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
  GRANTVILLE...LUTHERSVILLE...MORELAND...LONE OAK...SAINT MARKS...
  WOOSTER AND ROCKY MOUNT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3328 8484 3333 8473 3314 8457 3304 8484
TIME...MOT...LOC 2132Z 339DEG 7KT 3327 8477 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 1:57 PM EDTSpecial Weather StatementFFCCobb33 min
Sep 3, 2:02 PM EDTSevere Thunderstorm WarningFFCCobb28 min
Sep 3, 2:20 PM EDTSpecial Weather StatementFFCBartow25 min
Sep 3, 2:33 PM EDTSpecial Weather StatementFFCCobb27 min
Sep 3, 2:39 PM EDTSpecial Weather StatementFFCDawson36 min
Sep 3, 3:00 PM EDTSpecial Weather StatementFFCForsyth30 min
Sep 3, 3:05 PM EDTSpecial Weather StatementFFCCobb, Douglas, Paulding25 min
Sep 3, 3:15 PM EDTSpecial Weather StatementFFCDeKalb30 min
Sep 3, 3:28 PM EDTSpecial Weather StatementFFCForsyth32 min
Sep 3, 3:32 PM EDTSpecial Weather StatementFFCDouglas28 min
Sep 3, 3:43 PM EDTSpecial Weather StatementFFCPolk32 min
Sep 3, 3:44 PM EDTSpecial Weather StatementFFCClayton31 min
Sep 3, 4:16 PM EDTSevere Thunderstorm WarningFFCFayette, Fulton26 min
Sep 3, 4:21 PM EDTSpecial Weather StatementFFCGwinnett24 min
Sep 3, 4:25 PM EDTSpecial Weather StatementFFCCarroll50 min
Sep 3, 4:46 PM EDTSpecial Weather StatementFFCFayette29 min
Sep 3, 4:49 PM EDTSpecial Weather StatementFFCGwinnett26 min
Sep 3, 4:58 PM EDTSpecial Weather StatementFFCLamar47 min
Sep 3, 5:04 PM EDTSpecial Weather StatementFFCSpalding26 min
Sep 3, 5:28 PM EDTSpecial Weather StatementFFCPickens32 min
Sep 3, 5:30 PM EDTSpecial Weather StatementFFCCoweta30 min
Sep 3, 5:41 PM EDTSpecial Weather StatementFFCPike34 min
Sep 3, 5:55 PM EDTSpecial Weather StatementFFCTalbot35 min
Sep 3, 6:07 PM EDTSpecial Weather StatementFFCMeriwether23 min
Sep 3, 6:36 PM EDTSpecial Weather StatementFFCHeard24 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015Every severe thunderstorm warning in 2015

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.