Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 486, NWS Atlanta, GA

July 23, 2008Schley County, Sumter County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 2008, 7:46 PM EDT for Schley County, Sumter County, Georgia. It was in force for 29 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: Jul 23, 2008, 7:46 PM EDT (23:46 UTC)
Expired: Jul 23, 2008, 8:15 PM EDT
In force: 29 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Schley County, GA, Sumter County, GA

The radar

The Robins AFB radar (KJGX), 106 km from the middle of the area, began a volume at 23:48 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, 11.8 hours before the alert went out and 140 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: 200 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 53 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.

000 
WUUS52 KFFC 232346
SVRFFC
GAC249-261-240015-
/O.NEW.KFFC.SV.W.0486.080723T2346Z-080724T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
746 PM EDT WED JUL 23 2008

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 815 PM EDT

* AT 742 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED NEAR
  ELLAVILLE...MOVING SOUTHEAST AT 5 MPH.

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

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 3216 8410 3199 8421 3201 8441 3213 8442
      3231 8438
TIME...MOT...LOC 2346Z 320DEG 5KT 3219 8434

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 8:03 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Hall, Jackson, Madison	27 min
Jul 22, 8:56 PM EDT	Severe Thunderstorm Warning	FFC	Jefferson, Washington	34 min
Jul 22, 9:30 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Jefferson, Warren	45 min
Jul 22, 9:49 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Hancock, Warren, Washington	33 min
Jul 23, 5:09 PM EDT	Severe Thunderstorm Warning	FFC	Macon, Peach, Taylor	51 min
Jul 23, 5:19 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Gordon, Murray, Walker, Whitfield	41 min
Jul 23, 6:12 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon, Schley, Sumter	48 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2008 Every severe thunderstorm warning in 2008

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.