Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 285, NWS Atlanta, GA

November 24, 20146 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Nov 24, 2014, 8:46 AM EST for 6 counties in Georgia. It was in force for 44 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: Nov 24, 2014, 8:46 AM EST (13:46 UTC)
Expired: Nov 24, 2014, 9:30 AM EST
In force: 44 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Emanuel County, GA, Montgomery County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Wheeler County, GA

The radar

The Robins AFB radar (KJGX), 103 km from the middle of the area, began a volume at 13:46 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

Jacksonville, FL (KJAX), launched 12:00Z, 1.8 hours before the alert went out and 188 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 908 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 5.0

Open this sounding in Storm Lab

The text

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

946 
WUUS52 KFFC 241346
SVRFFC
GAC107-209-271-279-283-309-241430-
/O.NEW.KFFC.SV.W.0285.141124T1346Z-141124T1430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
846 AM EST MON NOV 24 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONTGOMERY COUNTY IN CENTRAL GEORGIA...
  TREUTLEN COUNTY IN EAST CENTRAL GEORGIA...
  TOOMBS COUNTY IN SOUTHEASTERN GEORGIA...
  WHEELER COUNTY IN CENTRAL GEORGIA...
  EASTERN TELFAIR COUNTY IN CENTRAL GEORGIA...
  SOUTHWESTERN EMANUEL COUNTY IN EAST CENTRAL GEORGIA...

* UNTIL 930 AM EST

* AT 846 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NEAR ALAMO TO 8 MILES SOUTHWEST OF SCOTLAND TO NEAR
  JACKSONVILLE...AND MOVING NORTHEAST AT 50 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SWAINSBORO...MCRAE...LYONS...SOPERTON...ALAMO...MOUNT VERNON...
  VIDALIA...HELENA...LUMBER CITY...GLENWOOD...UVALDA...OAK PARK...
  AILEY...SCOTLAND...HIGGSTON...SANTA CLAUS...ALSTON...NUNEZ...
  TARRYTOWN AND TOWNS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM.  ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP.  IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

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 3214 8291 3263 8235 3231 8223 3194 8235
      3197 8244 3197 8249 3196 8250 3196 8248
      3195 8249 3196 8257 3193 8259 3192 8268
      3186 8276 3185 8279 3184 8279 3181 8283
TIME...MOT...LOC 1346Z 235DEG 42KT 3215 8286 3194 8288 3178 8296 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 24, 7:04 AM EST	Special Weather Statement	FFC	Crisp, Wilcox	41 min
Nov 24, 7:56 AM EST	Special Weather Statement	FFC	Dodge, Telfair	34 min
Nov 24, 8:26 AM EST	Severe Thunderstorm Warning	FFC	Telfair, Wilcox	34 min
Nov 24, 9:29 AM EST	Special Weather Statement	FFC	Emanuel, Toombs	46 min
Nov 24, 11:01 AM EST	Special Weather Statement	FFC	Dodge	29 min
Nov 24, 11:45 AM EST	Special Weather Statement	FFC	Telfair	30 min
Nov 24, 12:06 PM EST	Special Weather Statement	FFC	Montgomery, Toombs, Treutlen, Wheeler	39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2014 Every severe thunderstorm warning in 2014

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.