Alert archive / Tennessee / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS Morristown, TN

April 12, 1994Cumberland County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Apr 12, 1994, 6:24 PM CDT for Cumberland County, Tennessee. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 6:24 PM CDT (23:24 UTC)
Expired
Apr 12, 1994, 7:15 PM CDT
In force
51 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Cumberland County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.4 hours before the alert went out and 145 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 KTYS 122323
SVRTYS
TNC035-130015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KNOXVILLE TN
724 PM EDT (624 PM CDT) TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN KNOXVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM EDT (715 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL TENNESSEE
 
   ...NORTHERN CUMBERLAND COUNTY
 
AT 620 PM CDT (720 PM EDT) A SEVERE THUNDERSTORM WAS LOCATED JUST NORTH
OF THE CITY OF CROSSVILLE MOVING TO THE NORTH AT 25 MPH. MARBLE SIZE
HAIL WAS REPORTED ALONG WITH STRONG GUSTY WINDS AND TORRENTIAL RAIN.
 
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.

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.