Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 201, NWS Atlanta, GA

September 10, 1992Rhea County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 10, 1992, 3:17 PM EDT for Rhea County, Tennessee. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Sep 10, 1992, 3:17 PM EDT (19:17 UTC)
Expired
Sep 10, 1992, 4:00 PM EDT
In force
43 min
Issued by
NWS Atlanta, GA
Area
Whole counties

County Rhea County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.3 hours before the alert went out and 162 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 1992-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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 1992-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -158 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
17 J/kg
Mixed-layer CIN
-204 J/kg
Mixed-layer LCL
1052 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-158 m²/s²
0-3 km storm-relative helicity
-91 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 101921
SVRCHA
TNC143-102000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TN
317 PM EDT THU SEP 10 1992
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST TENNESSEE
 
   ...NORTHERN RHEA COUNTY
 
AT 318 PM EDT...THE CHATTANOOGA WEATHER RADAR INDICATED A SEVERE IN
NORTHERN RHEA COUNTY...JUST TO THE NORTHWEST OF SPRING CITY.
 
THE STORM IS MOVING SLOWLY TO THE EAST AND WILL AFFECT THE NORTHERN
SECTIONS OF SPRING CITY SHORTLY.
 
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 4:04 PM EDTSevere Thunderstorm WarningFFCRhea41 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1992Every severe thunderstorm warning in 1992

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.