Alert archive / Georgia / Tornado Warnings in 1990

Tornado Warning 6, NWS Atlanta, GA

April 10, 1990DeKalb County, Georgia

NWS Atlanta, GA issued this tornado warning at Apr 10, 1990, 6:30 PM EDT for DeKalb County, Georgia. It was in force for 30 min. 2 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
Apr 10, 1990, 6:30 PM EDT (22:30 UTC)
Expired
Apr 10, 1990, 7:00 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County DeKalb County, GA

The radar

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

What was reported inside it

TimeReportWhereRemark
Apr 10, 6:33 PM EDTHail 0.75De Kalb, GA
Apr 10, 6:58 PM EDTHail 0.75De Kalb, 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 12:00Z, 10.5 hours before the alert went out and 88 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 1990-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Athens Municipal, GA at 12:00Z on 1990-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 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
26 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
268 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 102231
TORATL
GAC089-102300-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ATLANTA GA
630 PM EDT TUE APR 10 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  700 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHWEST GEORGIA
          ...DEKALB
 
AT 630 PM A TORNADO WAS SIGHTED ON THE GROUND NEAR I-285 AND FLAT
SHOALS ROAD MOVING NORTHEAST AT 50 MPH.
 
DO NOT USE YOUR CAR )TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 4:23 PM EDTSevere Thunderstorm WarningFFCHaralson, Polk52 min
Apr 10, 4:34 PM EDTSevere Thunderstorm WarningFFCGordon41 min
Apr 10, 4:48 PM EDTSevere Thunderstorm WarningFFCBartow, Floyd42 min
Apr 10, 4:48 PM EDTSevere Thunderstorm WarningFFCPaulding42 min
Apr 10, 4:51 PM EDTSevere Thunderstorm WarningFFCCarroll, Haralson54 min
Apr 10, 5:13 PM EDTSevere Thunderstorm WarningFFCGilmer47 min
Apr 10, 5:24 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas, Paulding66 min
Apr 10, 5:47 PM EDTSevere Thunderstorm WarningFFCFulton58 min
Apr 10, 6:05 PM EDTSevere Thunderstorm WarningFFCClayton, DeKalb55 min
Apr 10, 6:33 PM EDTSevere Thunderstorm WarningFFCGwinnett, Henry, Rockdale57 min
Apr 10, 6:41 PM EDTSevere Thunderstorm WarningFFCMeriwether49 min
Apr 10, 6:55 PM EDTSevere Thunderstorm WarningFFCHenry35 min
Apr 10, 7:06 PM EDTSevere Thunderstorm WarningFFCBarrow, Clarke, Oconee, Oglethorpe69 min
Apr 10, 7:06 PM EDTSevere Thunderstorm WarningFFCGreene, Morgan, Newton, Walton69 min
Apr 10, 7:17 PM EDTSevere Thunderstorm WarningFFCHouston58 min
Apr 10, 7:26 PM EDTTornado WarningFFCHouston64 min
Apr 10, 7:38 PM EDTSevere Thunderstorm WarningFFCCrawford, Monroe67 min
Apr 10, 7:38 PM EDTSevere Thunderstorm WarningFFCJasper, Putnam67 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.