Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 72, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 24, 1992, 7:32 PM EDT for Bradley County, Polk County, Tennessee. It was in force for 58 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 24, 1992, 7:32 PM EDT (23:32 UTC)
- Expired
- Apr 24, 1992, 8:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Bradley County, TN, Polk County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 24, 8:15 PM EDT | Hail 1 | Bradley, TN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 11.5 hours before the alert went out and 183 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1953 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHA 242333 SVRCHA TNC011-139-250030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TN 732 PM EDT FRI APR 24 1992 THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST TENNESSEE ...BRADLEY COUNTY...POLK COUNTY AT 725 PM EDT SEVERE THUNDERSTORMS WERE OVER BRADLEY COUNTY MOVING EAST TOWARD POLK COUNTY IN SOUTHEAST TENNESSEE. THESE THUNDERSTORMS HAVE VERY HEAVY RAIN...DAMAGING WINDS... DANGEROUS LIGHTNING...AND HAIL. THESE THUNDERSTORMS HAVE DROPPED GOLF BALL SIZE HAIL OVER CLEVELAND TENNESSEE. THESE THUNDERSTORMS ARE MOVING EAST AT 40 MPH. 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
Special weather statement, Apr 24, 7:24 PM EDT, 8 minutes before
GAZ002-250030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 725 PM EDT FRI APR 24 1992 ...STRONG THUNDERSTORMS APPROACHING EXTREME NORTH GEORGIA... AT 720 PM EDT STRONG THUNDERSTORMS WERE MOVING THROUGH PORTIONS OF SOUTHEAST TENNESSEE. IN ADDITION TO INTENSE LIGHTNING...SOME WERE PRODUCING HAIL AND STRONG GUSTY WINDS. THESE STORMS WERE MOVING SOUTHEAST AT 40 MPH...AND MAY MOVE INTO THE EXTREME NORTHERN PORTION OF GEORGIA BY 8 P M EDT. PEOPLE IN MURRAY...FANNIN...GILMER...AND SURROUNDING COUNTIES SHOULD BE PREPARED TO TAKE SHELTER INDOORS IF THREATENING WEATHER APPROACHES.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 7:00 PM EDT | Severe Thunderstorm Warning | FFC | Hamilton, Marion, Meigs | 60 min |
| Apr 24, 7:00 PM EDT | Severe Thunderstorm Warning | FFC | McMinn | 60 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.