Alert archive / Tennessee / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 22, NWS Atlanta, GA

April 12, 1994McMinn County, Meigs County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 12, 1994, 6:58 PM EDT for McMinn County, Meigs County, Tennessee. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 6:58 PM EDT (22:58 UTC)
Expired
Apr 12, 1994, 7:45 PM EDT
In force
47 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties McMinn County, TN, Meigs County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 hours before the alert went out and 185 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, Nashville Metro, TN at 12:00Z on 1994-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Nashville Metro, TN at 12:00Z on 1994-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 315 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
1174 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
315 m²/s²
0-3 km storm-relative helicity
356 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 KCHA 122258
SVRCHA
TNC107-121-122345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TN
658 PM EDT TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST TENNESSEE
 
   ...MCMINN COUNTY...MEIGS COUNTY
 
AT 650PM EDT WEATHER RADAR INDICATED SEVERE THUNDERSTORMS LOCATED
NEAR CHARLESTON ON THE MCMINN/BRADLEY COUNTY LINE AND ANOTHER
SEVERE THUNDERSTORM OVER SOUTHERN MEIGS COUNTY ALL IN SOUTHEAST
TENNESSEE.  THE THUNDERSTORMS ARE MOVING TOWARD THE NORTHEAST
AT 35 MPH.
 
THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...HAIL AND LOCALLY
VERY HEAVY RAINFALL THAT COULD PRODUCE LOCAL FLOODING.
 
PEOPLE IN MEIGS AND MCMINN COUNTIES NEED TO REMAIN ALERT
FOR ADVERSE WEATHER CONDITIONS AS THESE STORMS MOVE THROUGH THE
COUNTIES.
 
 
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

Local storm report, Apr 12, 6:51 PM EDT, 7 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATHENS GA
650 PM EDT TUE MAY 12 1994

COUNTY........ ELBERT

SOURCE........ ELBERT COUNTY E.M.A. DIRECTOR

TIME.......... APPROX 616 PM EDT

LOCATION...... 11 MILES SOUTH OF ELBERTON NEAR HIGHWAY 17

TYPE STORM.... TORNADO

HAIL..........

DAMAGE........ ROOF OF HOUSE BLOWN OFF

INJURIES...... NONE AT THIS TIME

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 7:14 PM EDTSevere Thunderstorm WarningFFCRhea31 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1994Every severe thunderstorm warning in 1994

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.