Alert archive / Georgia / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 99, NWS Atlanta, GA

April 25, 2003DeKalb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 25, 2003, 7:45 PM EDT for DeKalb County, Georgia. It was in force for 30 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 25, 2003, 7:45 PM EDT (23:45 UTC)
Expired: Apr 25, 2003, 8:15 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

County DeKalb County, GA

The radar

The Atlanta radar (KFFC), 60 km from the middle of the area, began a volume at 23:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 25, 6:00 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.8 hours before the alert went out and 56 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 939 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 476 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.

174 
WUUS52 KFFC 252345
SVRATL
GAC089-260015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
744 PM EDT FRI APR 25 2003

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEAST DEKALB COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 815 PM EDT

* AT 744 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER STONE MOUNTAIN...MOVING EAST AT 30 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...PINE LAKE...
REDAN AND STONE MOUNTAIN.

THE PUBLIC REPORTED HAIL UP TO THE SIZE OF QUARTERS NEAR NORTH LAKE 
MALL IN DEKALB COUNTY AT 730 PM.  THE STORM HAS WEAKENED SLIGHTLY 
BUT IS STILL CAPABLE OF PRODUCING LARGE HAIL.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES SUDDENLY. BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AND BE PREPARED TO ACT QUICKLY.

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 3386 8420 3375 8429 3371 8409 3375 8406

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 5:20 PM EDT	Severe Thunderstorm Warning	FFC	Polk	25 min
Apr 25, 5:32 PM EDT	Severe Thunderstorm Warning	FFC	Paulding	28 min
Apr 25, 5:38 PM EDT	Tornado Warning	FFC	Haralson, Polk	37 min
Apr 25, 5:59 PM EDT	Tornado Warning	FFC	Paulding	31 min
Apr 25, 6:10 PM EDT	Tornado Warning	FFC	Paulding, Polk	35 min
Apr 25, 6:20 PM EDT	Tornado Warning	FFC	Cobb	25 min
Apr 25, 6:43 PM EDT	Tornado Warning	FFC	Cobb, Paulding	32 min
Apr 25, 7:01 PM EDT	Severe Thunderstorm Warning	FFC	Polk	29 min
Apr 25, 7:10 PM EDT	Tornado Warning	FFC	Cobb, DeKalb, Fulton	35 min
Apr 25, 7:15 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee	30 min
Apr 25, 7:36 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	24 min
Apr 25, 7:56 PM EDT	Tornado Warning	FFC	Stewart	34 min
Apr 25, 7:59 PM EDT	Severe Thunderstorm Warning	FFC	Marion	16 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2003 Every severe thunderstorm warning in 2003

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.