Alert archive / Georgia / Tornado Warnings in 1990

Tornado Warning 11, NWS Atlanta, GA

July 11, 1990Whitfield County, Georgia

NWS Atlanta, GA issued this tornado warning at Jul 11, 1990, 2:50 PM EDT for Whitfield County, Georgia. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1990, 2:50 PM EDT (18:50 UTC)
Expired
Jul 11, 1990, 3:15 PM EDT
In force
25 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Whitfield 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, 6.8 hours before the alert went out and 180 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 1990-07-11Temperature 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 1990-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCHA 111853
TORCHA
GAC313-111915-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TENNESSEE
250 PM EDT WED JUL 11 1990
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA TENNESSEE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  315 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS
 
IN NORTHWEST GEORGIA
 
   ...WHITFIELD COUNTY
 
AT 250 PM EDT HAM RADIO OPERATORS AND LAW INFORCEMENT AGENCIES
REPORT THAT A TORNADO HAS TOUCHED DOWN IN TUNNEL HILL GEORGIA.
 
THE TORNADO IS MOVING TO THE EAST IN THE GENERAL DIRECTION OF
DALTON.
 
PLEASE TAKE COVER.
 
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STQURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 9:31 PM EDTSevere Thunderstorm WarningFFCBibb59 min
Jul 10, 10:01 PM EDTSevere Thunderstorm WarningFFCJones39 min
Jul 11, 6:42 PM EDTSevere Thunderstorm WarningFFCWarren48 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.