Alert archive / Georgia / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 36, NWS Atlanta, GA

March 29, 1991Floyd County, Polk County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 29, 1991, 5:48 AM EST for Floyd County, Polk County, Georgia. It was in force for 42 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 29, 1991, 5:48 AM EST (10:48 UTC)
Expired
Mar 29, 1991, 6:30 AM EST
In force
42 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Floyd County, GA, Polk County, GA

What was reported inside it

TimeReportWhereRemark
Mar 29, 6:15 AM ESTThunderstorm Wind 0Polk, GA
Mar 29, 6:15 AM ESTThunderstorm Wind 0Floyd, GA
Mar 29, 6:30 AM ESTThunderstorm Wind 0Polk, GA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 00:00Z, 10.8 hours before the alert went out and 176 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 00:00Z on 1991-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 00:00Z on 1991-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939587897117136Sfc1 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
3 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
874 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KATL 291058 RRA
SVRATL
GAC115-233-291130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTA  GA
548 AM EST FRI MAR 29 1991
 
THE NATIONAL WEATHER SERVICE IN ATLANTA  HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST GEORGIA
 
   ...FLOYD COUNTY...POLK COUNTY
 
RADAR INDICATED A SEVERE THUNDERSTORM IN ALABAMA NORTHEAST OF ANNISTON
MOVING TO THE NORTHEAST AT 45 MPH. THIS WILL BRING THE THUNDERSTORM
ACROSS POLK COUNTY NEAR CEDARTOWN AND ACROSS FLOYD COUNTY NEAR CAVE
SPRINGS WITHIN THE NEXT 30 TO 45 MINUTES. THIS THUNDERSTORM CONTAINS
DAMAGING WINDS ALONG WITH HAIL
 
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 7:46 AM ESTSevere Thunderstorm WarningFFCCarroll29 min
Mar 29, 8:29 AM ESTSevere Thunderstorm WarningFFCCobb31 min
Mar 29, 8:31 AM ESTSevere Thunderstorm WarningFFCDouglas29 min
Mar 29, 8:37 AM ESTTornado WarningFFCCobb38 min
Mar 29, 8:46 AM ESTSevere Thunderstorm WarningFFCFulton44 min
Mar 29, 9:05 AM ESTSevere Thunderstorm WarningFFCDeKalb40 min
Mar 29, 9:16 AM ESTSevere Thunderstorm WarningFFCCoweta, Fayette44 min
Mar 29, 9:24 AM ESTSevere Thunderstorm WarningFFCGwinnett51 min
Mar 29, 9:29 AM ESTSevere Thunderstorm WarningFFCClayton, Fulton46 min
Mar 29, 9:32 AM ESTSevere Thunderstorm WarningFFCJasper, Monroe58 min
Mar 29, 9:39 AM ESTSevere Thunderstorm WarningFFCButts, Lamar51 min
Mar 29, 9:41 AM ESTSevere Thunderstorm WarningFFCCrawford64 min
Mar 29, 9:55 AM ESTSevere Thunderstorm WarningFFCMorgan, Newton, Oconee, Walton65 min
Mar 29, 10:14 AM ESTSevere Thunderstorm WarningFFCBanks, Franklin, Habersham, Jackson, Stephens61 min
Mar 29, 10:14 AM ESTSevere Thunderstorm WarningFFCBarrow61 min
Mar 29, 10:20 AM ESTSevere Thunderstorm WarningFFCMeriwether, Troup25 min
Mar 29, 11:01 AM ESTSevere Thunderstorm WarningFFCElbert, Franklin, Hart, Madison119 min
Mar 29, 11:01 AM ESTSevere Thunderstorm WarningFFCClarke, Oconee, Oglethorpe119 min
Mar 29, 11:01 AM ESTSevere Thunderstorm WarningFFCStephens119 min
Mar 29, 11:12 AM ESTTornado WarningFFCMonroe48 min
Mar 29, 11:32 AM ESTSevere Thunderstorm WarningFFCJasper, Jones58 min
Mar 29, 11:32 AM ESTSevere Thunderstorm WarningFFCCrawford58 min
Mar 29, 11:50 AM ESTSevere Thunderstorm WarningFFCBibb, Houston, Peach55 min
Mar 29, 12:36 PM ESTSevere Thunderstorm WarningFFCTwiggs69 min
Mar 29, 12:45 PM ESTSevere Thunderstorm WarningFFCGlascock, Jefferson, Washington60 min
Mar 29, 12:50 PM ESTSevere Thunderstorm WarningFFCHouston55 min
Mar 29, 12:50 PM ESTSevere Thunderstorm WarningFFCWilkinson55 min
Mar 29, 1:42 PM ESTSevere Thunderstorm WarningFFCBurke, Emanuel, Jefferson, Johnson33 min
Mar 29, 2:24 PM ESTSevere Thunderstorm WarningFFCUpson36 min
Mar 29, 2:25 PM ESTSevere Thunderstorm WarningFFCBurke, Jenkins, Screven35 min
Mar 29, 3:19 PM ESTSevere Thunderstorm WarningFFCBibb, Crawford, Peach56 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.