Alert archive / Tennessee / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 44, NWS Atlanta, GA

April 27, 1994Bradley County, Hamilton County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 27, 1994, 2:05 PM EDT for Bradley County, Hamilton County, Tennessee. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Apr 27, 1994, 2:05 PM EDT (18:05 UTC)
Expired
Apr 27, 1994, 2:45 PM EDT
In force
40 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Bradley County, TN, Hamilton County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.1 hours before the alert went out and 179 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 271802
SVRCHA
TNC011-065-271845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TN
205 PM EDT WED APR 27 1994
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST TENNESSEE
 
   ...NORTH CENTRAL BRADLEY COUNTY
   ...NORTHEASTERN HAMILTON COUNTY
 
AT 200 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM FORMING IN NORTHEAST
HAMILTON COUNTY. THE THUNDERSTORM WAS MOVING SOUTHEAST AND SHOULD MOVE
INTO NORTHERN BRADELY COUNTY WITHIN THE NEXT 20 MINUTES.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, 2:19 PM EDTTornado WarningFFCMcMinn41 min
Apr 27, 2:38 PM EDTTornado WarningFFCHamilton52 min
Apr 27, 3:52 PM EDTSevere Thunderstorm WarningFFCMarion53 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.