Alert archive / Georgia / Tornado Warnings in 1990

Tornado Warning 1, NWS Atlanta, GA

February 22, 1990Coweta County, Georgia

NWS Atlanta, GA issued this tornado warning at Feb 22, 1990, 10:15 AM EST for Coweta County, Georgia. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Feb 22, 1990, 10:15 AM EST (15:15 UTC)
Expired
Feb 22, 1990, 10:45 AM EST
In force
30 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Coweta County, GA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 3.3 hours before the alert went out and 151 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 1990-02-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1990-02-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 245 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
245 m²/s²
0-3 km storm-relative helicity
233 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 221519
TORATL
GAC077-221545-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
1015 AM EST THU FEB 22 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1045 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHWEST GEORGIA
          ...COWETA
 
AT 1017 AM A POSSIBLE TORNADO WAS INDICATED BY RADAR JUST WEST OF
NEWNAN MOVING NORTHEAST AT 40 MPH. TAKE COVER IMMEDIATELY.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 22, 9:38 AM ESTSevere Thunderstorm WarningFFCHeard, Troup52 min
Feb 22, 10:01 AM ESTSevere Thunderstorm WarningFFCCoweta, Meriwether44 min
Feb 22, 10:21 AM ESTSevere Thunderstorm WarningFFCCrawford, Peach54 min
Feb 22, 10:29 AM ESTSevere Thunderstorm WarningFFCFayette, Fulton46 min
Feb 22, 10:29 AM ESTSevere Thunderstorm WarningFFCDouglas46 min
Feb 22, 10:45 AM ESTSevere Thunderstorm WarningFFCBibb, Houston45 min
Feb 22, 10:47 AM ESTSevere Thunderstorm WarningFFCClayton, DeKalb, Fulton43 min
Feb 22, 10:47 AM ESTSevere Thunderstorm WarningFFCCobb43 min
Feb 22, 11:25 AM ESTSevere Thunderstorm WarningFFCDawson, Hall, Lumpkin55 min

Nearby

Tornado Warnings in Georgia, 1990Every tornado warning in 1990Tornadoes in 1990

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.