Alert archive / Georgia / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 129, NWS Atlanta, GA

July 5, 1992Cobb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 5, 1992, 5:27 PM EDT for Cobb County, Georgia. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1992, 5:27 PM EDT (21:27 UTC)
Expired
Jul 5, 1992, 6:15 PM EDT
In force
48 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Cobb County, GA

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 9.5 hours before the alert went out and 118 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 1992-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 1992-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 square meters per square second.1939Sfc1 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
5 J/kg
Mixed-layer CIN
-358 J/kg
Mixed-layer LCL
1617 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
4 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 052126
SVRATL
GAC057-067-111-113-117-121-123-227-199-285-052215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
527 PM EDT SUN JUL 5 1992
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...CHEROKEE COUNTY...COBB COUNTY...FANNIN COUNTY...FAYETTE COUNTY
   ...FORSYTH COUNTY...FULTON COUNTY...GILMER COUNTY...PICKENS COUNTY
 
IN WEST CENTRAL GEORGIA
 
   ...MERIWETHER COUNTY...TROUP COUNTY
 
AT 520 PM EDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 10
MILES WEST OF BLUE RIDGE TO NEAR CANTON TO MARIETTA TO NEWNAN TO
LA GRANGE. THIS LINE IS MOVING EAST AT 30 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, Jul 5, 2:46 PM EDT, 2 hours 41 minutes before
GAZ001-003-005-032030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
245 PM EDT SUN JUL 5 1992

...SEVERE THUNDERSTORM WATCH NUMBER 550 IS IN EFFECT FOR PARTS OF
   NORTHWEST AND WEST CENTRAL GEORGIA UNTIL 7PM EDT...

AT THIS TIME NO SEVERE WEATHER HAD MOVED INTO THE STATE...HOWEVER SEVERE
THUNDERSTORMS WERE SPREADING ACROSS MUCH OF NORTHERN ALABAMA AND CENTRAL
TENNESSEE.  THESE THUNDERSTORMS WERE MOVING TO THE EAST AT 30 MPH AND WILL
MOVE INTO NORTHWEST AND WEST CENTRAL GEORIGA WITHIN THE NEXT HOUR OR TWO.

AS THE THUNDERSTORMS MOVE INTO THE WESTERN PART OF THE STATE RESIDENTS
CAN EXPECT THE STRONGER THUNDERSTORMS TO CONTAIN HEAVY DOWNPOURS...GUSTY
WINDS...DANGEROUS LIGHT?NING AND POSSIBLY SOME HAIL.

BE PREPARED TO SEEK SAFETY SHOULD THREATING WEATHER APPEAR OR IF A WARNING
IS ISSUED.
Special weather statement, Jul 5, 3:52 PM EDT, 1 hour 35 minutes before
GAZ001-003-005-032030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
345 PM EDT SUN JUL 5 1992

...SEVERE THUNDERSTORM WATCH NUMBER 550 CONTINUES IN EFFECT FOR
   PARTS OF NORTHWEST AND WEST CENTRAL GEORGIA UNTIL 7PM EDT...

AT 340 PM EDT NATIONAL WEATHER SERVICE RADAR IN ATLANTA WAS SHOWING
THUNDERSTORMS DEVELOPING OVER PARTS OF WESTERN GEORGIA.  THE
THUNDERSTORMS WERE LOCATED AHEAD OF A LINE OF SEVERE THUNDERSTORMS THAT
WERE LOCATED OVER SOUTHEAST TENNESSEE AND EASTERN ALABAMA.

THE STORMS IN ALABAMA HAVE A HISTORY OF DAMAGING WINDS IN EXCESS OF 55
MPH. THE THUNDERSTORMS IN GEORGIA WERE LOCATED BETWEEN CARROLLTON...LA
GRANGE ...AND NEWNAN.

NO SEVERE WEATHER HAS BEEN REPORTED TO THIS OFFICE AT THIS
TIME...HOWEVER...RESIDENTS OF NORTHWEST AND WEST CENTRAL GEORGIA
...ESPECIALLY IN CHATOOGA...FLOYD...POLK...HARALSON AND CARROLL SHOULD
BE ON THE LOOKOUT FOR HEAVY DOWNPOURS...GUSTY WINDS...AND DANGEROmUS
LIGHTNING AS THESE STORMS MOVE TO THE EAST AT 30 MPH.  BE PREPARED TO
SEEK SAFETY SHOULD THREATING WEATHER APPEAR OR IF A WARNING IS ISSUED.

THESE STORMS WILL MOVE INTO THE ATLANTA AREA WITHIN THE NEXT COUPLE OF
HOURS.
Special weather statement, Jul 5, 4:31 PM EDT, 56 minutes before
GAZ005-ALZ012-052230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS GA
429 PM EDT SUN JUL 5 1992

...SEVERE THUNDERSTORM WATCH NUMBER 550 REMAINS IN EFFECT
FOR HARRIS COUNTY GEORGIA AND MOST OF EAST CENTRAL ALABAMA
INCLUDING LEE AND RUSSELL COUNTIES UNTIL 7PM EDT...

AT 420 PM EDT COLUMBUS WEATHER RADAR WAS SHOWING SEVERAL
STRONG THUNDERSTORMS ALONG THE LEADING EDGE OF RAIN
OCCURRING FROM 10 MILES WEST OF TALLASSEE TO 12 MILES NORTH
OF TALLASEEE ON THE SHORES OF LAKE MARTIN. THESE STORMS WERE
MOVING EAST AT 30 MILES AN HOUR. THESE STORMS WILL BE MOVING
INTO THE WESTERN PORTIONS OF LEE AND RUSSELL COUNTIES ALABAMA
WITHIN AN HOUR.

PERSONS IN EAST CENTRAL ALABAMA AND WESTo CENTRAL GEORGIA SHOULD
REMAIN ALERT AND BE READY TO QUICKLY MOVE TO A SAFE SHELTER WHEN
THESE STORMS COME NEAR. LISTEN TO NOAA WEATHER RADIO OR OTHER
NEWS MEDIA FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Jul 5, 5:16 PM EDT, 11 minutes before
GAZ002-004-052315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATHENS GA
513 PM EDT SUN JUL 5 1992

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR ALL COUNTIES OF
NORTHEAST GEORGIA EFFECTIVE UNTIL 11 PM EDT THIS SUNDAY EVENING...

AT 510 PM EDT RADAR INDICATED A LINE OF THUNDERSTORMS...10 MILES
WIDE...EXTENDING FROM EXTREME SOUTHEAST TENNESSEE...SOUTHWARD...TO
WEST OF ATLANTA GEORGIA. THE LINE WAS MOVING EAST AT 30 MILES AN HOUR.

AT THE PRESENT MOVEMENT THIS LINE OF STORMS WILL BE ENTERING UNION
COUNTY WITHIN THE HOUR. PERSONS IN AND NEAR THE CITY OF BLAIRSVILLE
SHOULD BE ON THE ALERT FOR POSSIBLE SEVERE WEATHER AROUND 6 PM EDT.

ELSEWHERE ACROSS NORTHEAST GEORGIA...ALL RESIDENTS SHOULD BE PREPARED
TO MOVE INDOORS AS THUNDERSTORMS APPROACH...AND STAY INDOORS UNTIL THE
STORMS HAVE PAST.

MOTORISTS SHOULD BE PREPARED FOR WET ROADS AND POSSIBLE FLOODING OF
LOW LYING AND POOR DRAINAGE AREAS.

THUNDERSTORMS OF THIS INTENSITY PRODUCE VERY HEAVY RAINFALL...DEADLY
LIGHTNING...GUSTY WINDS AND POSSIBLE HAIL. KEEP IN MIND SEVERE
WEATHER COULD DEVELOP FROM ANY OF THESE STORMS...SO KEEP SEVERE
WEATHER SAFETY RULES IN MIND UNTIL THE STORMS HAVE PAST.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 4:09 PM EDTSevere Thunderstorm WarningFFCFloyd, Polk51 min
Jul 5, 4:09 PM EDTSevere Thunderstorm WarningFFCChattooga51 min
Jul 5, 4:15 PM EDTSevere Thunderstorm WarningFFCCatoosa45 min
Jul 5, 4:43 PM EDTSevere Thunderstorm WarningFFCLamar, Pike47 min
Jul 5, 4:46 PM EDTSevere Thunderstorm WarningFFCCarroll, Heard44 min
Jul 5, 4:46 PM EDTSevere Thunderstorm WarningFFCBartow, Gordon, Murray44 min
Jul 5, 4:46 PM EDTSevere Thunderstorm WarningFFCDouglas, Haralson, Paulding44 min
Jul 5, 5:05 PM EDTSevere Thunderstorm WarningFFCCobb, Fulton40 min
Jul 5, 5:05 PM EDTSevere Thunderstorm WarningFFCCoweta40 min
Jul 5, 5:23 PM EDTSevere Thunderstorm WarningFFCBibb, Jones52 min
Jul 5, 5:27 PM EDTSevere Thunderstorm WarningFFCCherokee, Forsyth, Fulton48 min
Jul 5, 5:27 PM EDTSevere Thunderstorm WarningFFCFannin, Gilmer, Pickens48 min
Jul 5, 5:27 PM EDTSevere Thunderstorm WarningFFCMeriwether, Troup48 min
Jul 5, 5:27 PM EDTSevere Thunderstorm WarningFFCFayette48 min
Jul 5, 5:30 PM EDTSevere Thunderstorm WarningFFCDeKalb45 min
Jul 5, 5:46 PM EDTSevere Thunderstorm WarningFFCClayton, Henry, Spalding44 min
Jul 5, 5:46 PM EDTSevere Thunderstorm WarningFFCGwinnett, Rockdale44 min
Jul 5, 6:05 PM EDTSevere Thunderstorm WarningFFCLamar, Pike, Upson40 min
Jul 5, 6:05 PM EDTSevere Thunderstorm WarningFFCButts40 min
Jul 5, 6:20 PM EDTSevere Thunderstorm WarningFFCTwiggs40 min
Jul 5, 6:24 PM EDTSevere Thunderstorm WarningFFCBarrow, Oconee, Walton66 min
Jul 5, 6:24 PM EDTSevere Thunderstorm WarningFFCClarke66 min
Jul 5, 6:38 PM EDTSevere Thunderstorm WarningFFCWilkinson67 min
Jul 5, 7:06 PM EDTSevere Thunderstorm WarningFFCMadison, Oglethorpe69 min
Jul 5, 7:06 PM EDTSevere Thunderstorm WarningFFCHouston69 min
Jul 5, 7:48 PM EDTSevere Thunderstorm WarningFFCTaliaferro57 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.