Alert archive / Georgia / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 61, NWS Atlanta, GA

April 11, 1992Coweta County, Fulton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 11, 1992, 2:31 PM EDT for Coweta County, Fulton County, Georgia. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Apr 11, 1992, 2:31 PM EDT (18:31 UTC)
Expired
Apr 11, 1992, 3:15 PM EDT
In force
44 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Coweta County, GA, Fulton County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 6.5 hours before the alert went out and 129 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, Athens Municipal, GA at 12:00Z on 1992-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 130 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 12:00Z on 1992-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
130 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
991 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
31 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 
TTAA00 KATL 111832
SVRATL
GAC077-121-111915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
231 PM EDT SAT APR 11 1992
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...NORTHERN COWETA COUNTY...SOUTHERN FULTON COUNTY
 
AT 2:30 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM NORTH OF NEWNAN IN NORTHERN COWETA COUNTYA. ANOTHER
STRONG THUNDERSTORM WAS LOCATED NEAR FAIRBURN IN SOUTHERN FULTON
COUNTY.  THESE STORMS WERE MOVING NORTH AT 20 MILES AN HOUR.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 11, 12:00 PM EDT, 2 hours 31 minutes before
GAZ003-005-111700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA GA
1159 AM EDT SAT APR 11 1992

         ...THUNDERSTORMS OVER WEST CENTRAL..

AT 1150 AN AREA OF RAIN WITH A FEW THUNDERSTORMS CONTINUED TO ADVANCE
NORTH THROUGH UPSON COUNTY NEAR THE CRAWFORD COUNTY LINE...IN WEST
CENTRAL GEORGIA. THE STORM WILL PASS INTO LAMAR COUNTY SHORTLY. NO
DAMAGE HAS BEEN REPORTED.

PERSONS IN LAMAR COUNTY SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER
CONDITIONS AND REPORT UNUSUAL WEATHER CONDITIONS TO THE LOCAL LAW
ENFORCEMENT AGENCY.

CONDITIONS FOR THUNDERSTORM DEVELOPMENT WILL PERSIST THROUGH THE
REMAINDER OF THE AFTERNOON AND INTO THE EVENING FOR RESIDENTS OF WEST
CENTRAL AS WELL AS FOR ALL OF GEORGIA.
Special weather statement, Apr 11, 12:03 PM EDT, 2 hours 28 minutes before
GAZ003-005-111700-

SPECIAL WEATHER STATEMENT.. CORRECTION TO TIME IN TEXT
NATIONAL WEATHER SERVICE ATLANTA GA
1159 AM EDT SAT APR 11 1992

         ...THUNDERSTORMS OVER WEST CENTRAL..

AT 1150 AM EDT...AN AREA OF RAIN WITH A FEW THUNDERSTORMS CONTINUED TO
ADVANCE NORTH THROUGH UPSON COUNTY NEAR THE CRAWFORD COUNTY LINE...IN
WEST CENTRAL GEORGIA. THE STORM WILL PASS INTO LAMAR COUNTY SHORTLY. NO
DAMAGE HAS BEEN REPORTED.

PERSONS IN LAMAR COUNTY SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER
CONDITIONS AND REPORT UNUSUAL WEATHER CONDITIONS TO THE LOCAL LAW
ENFORCEMENT AGENCY.

CONDITIONS FOR THUNDERSTORM DEVELOPMENT WILL PERSIST THROUGH THE
REMAINDER OF THE AFTERNOON AND INTO THE EVENINtG FOR RESIDENTS OF WEST
CENTRAL AS WELL AS FOR ALL OF GEORGIA.
Special weather statement, Apr 11, 1:15 PM EDT, 1 hour 16 minutes before
GAZ006-111900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MACON GA
110 PM EDT SAT APR 11 1992

A LARGE STRONG THUNDERSTORM WAS MOVING THROUGH MONROE COUNTY TO
THE NORTHEAST AT 25 MILES AN HOUR.  AT 105 PM IT WAS 10 MILES NORTH OF
FORSYTH.  IT CARRIED WITH IT WIND GUSTS TO NEAR 40 MILES AN HOUR AND
FREQUENT GROUND STRIKE LIGHTNING. ON ITS PRESENT COURSE THE STORM WILL
PASS JUST SOUTH OF MONTICELLO IN ONE HOUR.

OTHER VERY HEAVY THUNDERSTORMS DEVELOPED IN THE UNSTABLE MOIST AIR IN
JONES AND BALDWIN COUNTIES AND WERE MOVING NORTHEAST 20 MILES AN HOUR.
STORMS IN THIS AREA COULD INTENSIFY AND PRODUCE WIND GUSTS TO NEAR
40 MILES AN HOUR.

MACON AND ATHENS RADARS ARE MONITORING THESE STORMS CLOSELY.  WARNINGS
WILL BE ISSUED WHEN NEEDED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 11:09 AM EDTSevere Thunderstorm WarningFFCUpson51 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1992Every severe thunderstorm warning in 1992

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.