Alert archive / Tennessee / Tornado Warnings in 1994

Tornado Warning 30, NWS Atlanta, GA

April 27, 1994McMinn County, Tennessee

NWS Atlanta, GA issued this tornado warning at Apr 27, 1994, 2:19 PM EDT for McMinn County, Tennessee. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Apr 27, 1994, 2:19 PM EDT (18:19 UTC)
Expired
Apr 27, 1994, 3:00 PM EDT
In force
41 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County McMinn County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.3 hours before the alert went out and 195 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 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2248 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 1994-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 251 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
2248 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
649 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
251 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
2.0
Supercell composite
10.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCHA 271816
TORCHA
TNC107-271900-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TN
219 PM EDT WED APR 27 1994
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  300 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TENNESSEE
 
   ...SOUTHERN MCMINN COUNTY
 
A TORNADO TOUCHDOWN WAS REPORTED IN NEAR ATHENS IN MCMINN COUNTY. RADAR
INDICATED THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES IN SOUTHWEST AND
SOUTH CENTRAL MCMINN COUNTY.  THE THUNDERSTOEMS WERE MOVING SOUTHEAST AT
40 MILES AN HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 1:39 PM EDTSevere Thunderstorm WarningFFCMcMinn, Meigs51 min
Apr 27, 1:50 PM EDTSevere Thunderstorm WarningFFCRhea40 min
Apr 27, 2:05 PM EDTSevere Thunderstorm WarningFFCBradley, Hamilton40 min
Apr 27, 2:38 PM EDTTornado WarningFFCHamilton52 min
Apr 27, 3:52 PM EDTSevere Thunderstorm WarningFFCMarion53 min

Nearby

Tornado Warnings in Tennessee, 1994Every tornado warning in 1994Tornadoes 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.