Alert archive / Georgia / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 54, NWS Atlanta, GA

May 31, 2004Morgan County, Oconee County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 31, 2004, 8:31 AM EDT for Morgan County, Oconee 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: May 31, 2004, 8:31 AM EDT (12:31 UTC)
Expired: May 31, 2004, 9:00 AM EDT
In force: 29 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties Morgan County, GA, Oconee County, GA

The radar

The Atlanta radar (KFFC), 111 km from the middle of the area, began a volume at 12:32 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, 0.5 hours before the alert went out and 105 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: 858 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 630 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

823 
WUUS52 KFFC 311231
SVRATL
GAC211-219-311300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
831 AM EDT MON MAY 31 2004

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MORGAN COUNTY IN NORTH CENTRAL GEORGIA
  OCONEE COUNTY IN NORTHEAST GEORGIA

* UNTIL 900 AM EDT

* AT 827 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER BOSTWICK...MOVING EAST AT 45 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...APALACHEE...
BISHOP...BOSTWICK...FARMINGTON AND WATKINSVILLE.

HAIL TO THE SIZE OF PENNIES 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 3380 8360 3363 8358 3373 8318 3392 8341

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 3:02 AM EDT	Severe Thunderstorm Warning	FFC	Dade, Walker	28 min
May 31, 3:13 AM EDT	Severe Thunderstorm Warning	FFC	Dade, Walker	32 min
May 31, 3:17 AM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Whitfield	43 min
May 31, 3:39 AM EDT	Severe Thunderstorm Warning	FFC	Fannin, Murray	51 min
May 31, 4:00 AM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Murray, Whitfield	45 min
May 31, 4:31 AM EDT	Severe Thunderstorm Warning	FFC	Fannin, Union	44 min
May 31, 5:20 AM EDT	Severe Thunderstorm Warning	FFC	Towns	25 min
May 31, 8:40 AM EDT	Severe Thunderstorm Warning	FFC	Clarke, Oglethorpe	50 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.