Alert archive / Georgia / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 18, NWS Atlanta, GA

April 12, 2004Butts County, Jasper County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 12, 2004, 8:22 PM EDT for Butts County, Jasper County, Georgia. It was in force for 23 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: Apr 12, 2004, 8:22 PM EDT (00:22 UTC)
Expired: Apr 12, 2004, 8:45 PM EDT
In force: 23 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties Butts County, GA, Jasper County, GA

The radar

The Atlanta radar (KFFC), 69 km from the middle of the area, began a volume at 00:25 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.

Issued	Product	Office	Lasted
Apr 12, 7:50 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.4 hours before the alert went out and 63 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: 823 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1087 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 200 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 130022
SVRATL
GAC035-159-130045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
822 PM EDT MON APR 12 2004

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN BUTTS COUNTY IN CENTRAL GEORGIA
  WESTERN JASPER COUNTY IN CENTRAL GEORGIA

* UNTIL 845 PM EDT

* AT 820 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES EAST OF FLOVILLA...MOVING NORTH AT 35
  MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FLOVILLA.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA.

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 3317 8394 3314 8373 3350 8366 3344 8390

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 12, 8:07 PM EDT	Severe Thunderstorm Warning	FFC	Pike	23 min
Apr 12, 10:49 PM EDT	Severe Thunderstorm Warning	FFC	Muscogee	26 min
Apr 12, 10:52 PM EDT	Severe Thunderstorm Warning	FFC	Muscogee	23 min
Apr 12, 11:00 PM EDT	Severe Thunderstorm Warning	FFC	Harris	30 min
Apr 12, 11:13 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether	32 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2004 Every severe thunderstorm warning in 2004

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.