Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 71, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Apr 24, 1992, 7:00 PM EDT for McMinn County, Tennessee. It was in force for 60 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, 7:00 PM EDT (23:00 UTC)
- Expired
- Apr 24, 1992, 8:00 PM EDT
- In force
- 60 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County McMinn County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 24, 7:20 PM EDT | Hail 0.75 | Mcminn, 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
Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 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.
- Mixed-layer CAPE
- 1157 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 913 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 224 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHA 242302 SVRCHA TNC065-115-107-121-250000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TN 700 PM EDT (600 PM CDT) FRI APR 24 1992 THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM EDT (700 PM CDT) FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST TENNESSEE ...HAMILTON COUNTY...MARION COUNTY...NORTHERN MCMINN COUNTY ...NORTHERN MEIGS COUNTY ...SEVERE THUNDERSTORMS MOVING EAST OVER SOUTHEAST TENNESSEE... AT 655 PM EDT (555 PM CDT) SEVERE THUNDERSTORMS WERE OVER MARION... HAMILTON...MEIGS...AND MCMINN COUNTIES OF SOUTHEAST TENNESSEE. THESE THUNDERSTORMS HAVE VERY HEAVY RAIN...DAMAGING WINDS... DANGEROUS LIGHTNING...AND HAIL. REPORTS OF MARBLE SIZE AND STRONG WINDS HAVE BEEN RECEIVED FROM MONTEAGLE AND FROM MOWBRY MOUNTAIN IN NORTHEAST HAMILTON COUNTY. THESE THUNDERSORMS 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.
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, 7:32 PM EDT | Severe Thunderstorm Warning | FFC | Bradley, Polk | 58 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.