Alert archive / Georgia / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 76, NWS Atlanta, GA

April 24, 1999Dooly County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 24, 1999, 5:19 PM EDT for Dooly County, Georgia. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 24, 1999, 5:19 PM EDT (21:19 UTC)
Expired
Apr 24, 1999, 5:35 PM EDT
In force
16 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Dooly County, GA

The radar

The Robins AFB radar (KJGX), 71 km from the middle of the area, began a volume at 21:20 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 150 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 1999-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1372 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 1999-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1372 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
784 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
137 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.

999 
WUUS1 KATL 242120 RRA
SVRATL
GAC093-242135-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
519 PM EDT SAT APR 24 1999

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN DOOLY COUNTY IN CENTRAL GEORGIA

* UNTIL 535 PM EDT

* AT 516 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  1 MILE WEST OF TIPPETTVILLE... MOVING SOUTHEAST AT 10 MPH.

* THE STORM WILL MOVE TO BE 10 MILES EAST OF TIPPETTVILLE AT 530 PM.

DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING
ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. IF YOU SEE DAMAGE OR
LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE AT 770-486-1133 AT
EXTENSION 2 0 4.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 24, 12:00 PM EDT, 5 hours 19 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-242030-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1200 PM EDT SAT APR 24 1999

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING OVER THAT PORTION OF NORTH AND CENTRAL SOUTH OF A CEDARTOWN
TO ATLANTA TO SPARTA TO LOUISVILLE.

THE STORMS WILL DEVELOP ALONG AND SOUTH OF A SURFACE BOUNDARY ACROSS
NORTH GEORGIA. AN UPPER AIR SYSTEM WILL MOVE ACROSS THE STATE AND
REINFORCE THE STORMS THAT MAY DEVELOP IN THE AFTERNOON HEATING. THE
MAIN THREAT FROM THE STORMS WILL BE HAIL AND GUSTY WINDS.

SPOTTER ACTIVATION MAY BE NECESSARY. SPOTTERS AND EMA OFFICIALS
SHOULD MONITOR THE SITUATION FOR POSSIBLE SEVERE THUNDERSTORM
DEVELOPMENT.
Special weather statement, Apr 24, 12:00 PM EDT, 5 hours 19 minutes before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-242030-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1200 PM EDT SAT APR 24 1999

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING OVER THAT PORTION OF NORTH AND CENTRAL SOUTH OF A CEDARTOWN
TO ATLANTA TO SPARTA TO LOUISVILLE.

THE STORMS WILL DEVELOP ALONG AND SOUTH OF A SURFACE BOUNDARY ACROSS
NORTH GEORGIA. AN UPPER AIR SYSTEM WILL MOVE ACROSS THE STATE AND
REINFORCE THE STORMS THAT MAY DEVELOP IN THE AFTERNOON HEATING. THE
MAIN THREAT FROM THE STORMS WILL BE HAIL AND GUSTY WINDS.

SPOTTER ACTIVATION MAY BE NECESSARY. SPOTTERS AND EMA OFFICIALS
SHOULD MONITOR THE SITUATION FOR POSSIBLE SEVERE THUNDERSTORM
DEVELOPMENT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 2:33 PM EDTSevere Thunderstorm WarningFFCMeriwether, Troup32 min
Apr 24, 4:19 PM EDTSevere Thunderstorm WarningFFCDooly, Houston36 min
Apr 24, 4:54 PM EDTSevere Thunderstorm WarningFFCHaralson, Polk36 min
Apr 24, 5:22 PM EDTSevere Thunderstorm WarningFFCPike33 min
Apr 24, 5:58 PM EDTSevere Thunderstorm WarningFFCWashington32 min
Apr 24, 5:59 PM EDTSevere Thunderstorm WarningFFCEmanuel36 min
Apr 24, 6:05 PM EDTSevere Thunderstorm WarningFFCPike35 min
Apr 24, 6:28 PM EDTSevere Thunderstorm WarningFFCJohnson, Washington32 min
Apr 24, 6:45 PM EDTSevere Thunderstorm WarningFFCLaurens35 min
Apr 24, 6:57 PM EDTSevere Thunderstorm WarningFFCJohnson33 min
Apr 24, 7:28 PM EDTSevere Thunderstorm WarningFFCJohnson, Laurens32 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1999Every severe thunderstorm warning in 1999

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.