Alert archive / Georgia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 484, NWS Atlanta, GA

July 23, 20086 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 2008, 5:19 PM EDT for 6 counties in Georgia. It was in force for 41 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, 5:19 PM EDT (21:19 UTC)
Expired: Jul 23, 2008, 6:00 PM EDT
In force: 41 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Chattooga County, GA, Floyd County, GA, Gordon County, GA, Murray County, GA, Walker County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 107 km from the middle of the area, began a volume at 21:21 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, 9.3 hours before the alert went out and 143 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 232119
SVRFFC
GAC055-115-129-213-295-313-232200-
/O.NEW.KFFC.SV.W.0484.080723T2119Z-080723T2200Z/

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

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME NORTHEASTERN CHATTOOGA COUNTY IN NORTHWEST GEORGIA
  NORTHEASTERN FLOYD COUNTY IN NORTHWEST GEORGIA
  NORTHWESTERN GORDON COUNTY IN NORTHWEST GEORGIA
  EXTREME SOUTHWESTERN MURRAY COUNTY IN NORTHWEST GEORGIA
  SOUTHEASTERN WALKER COUNTY IN NORTHWEST GEORGIA
  SOUTHWESTERN WHITFIELD COUNTY IN NORTHWEST GEORGIA

* UNTIL 600 PM EDT

* AT 514 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL.  THIS
  STORM WAS LOCATED NEAR TILTON...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  OOSTANAULA...CALHOUN AND NICKELSVILLE.

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 3451 8481 3445 8515 3473 8518 3478 8495
TIME...MOT...LOC 2119Z 320DEG 13KT 3469 8500

$$

1 follow-up statement

000 
WWUS52 KFFC 232136
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
536 PM EDT WED JUL 23 2008

GAC055-115-129-213-295-313-232200-
/O.CON.KFFC.SV.W.0484.000000T0000Z-080723T2200Z/
FLOYD GA-CHATTOOGA GA-GORDON GA-WALKER GA-WHITFIELD GA-MURRAY GA-
536 PM EDT WED JUL 23 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR EXTREME SOUTHWESTERN MURRAY...SOUTHWESTERN WHITFIELD...
SOUTHEASTERN WALKER...NORTHWESTERN GORDON...EXTREME NORTHEASTERN
CHATTOOGA AND NORTHEASTERN FLOYD COUNTIES...

AT 535 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL.
THIS STORM WAS LOCATED NEAR TILTON...MOVING SOUTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EVERETT
SPRINGS...SUGAR VALLEY...RESACA...NICKELSVILLE...OOSTANAULA AND
CALHOUN.

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.

LAT...LON 3451 8481 3445 8515 3473 8518 3478 8495
TIME...MOT...LOC 2136Z 320DEG 13KT 3463 8494

$$

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, 6:12 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon, Schley, Sumter	48 min
Jul 23, 7:46 PM EDT	Severe Thunderstorm Warning	FFC	Schley, Sumter	29 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.