Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 187, NWS Atlanta, GA

June 7, 1990Meigs County, Rhea County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 7, 1990, 11:54 AM EDT for Meigs County, Rhea County, Tennessee. It was in force for 51 min. 2 reports 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: Jun 7, 1990, 11:54 AM EDT (15:54 UTC)
Expired: Jun 7, 1990, 12:45 PM EDT
In force: 51 min
Issued by: NWS Atlanta, GA
Area: Whole counties

Counties Meigs County, TN, Rhea County, TN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 7, 12:30 PM EDT	Hail 0.75	Rhea, TN
Jun 7, 12:40 PM EDT	Hail 0.75	Meigs, 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, 3.9 hours before the alert went out and 168 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2271 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 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 071555
SVRCHA
TNC121-143-071645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHATTANOOGA TENNESSEE
1154 AM EDT THU JUN 7 1990
 
THE NATIONAL WEATHER SERVICE IN CHATTANOOGA TENNESSEE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS
 
IN SOUTHEAST TENNESSEE
 
   ...NORTHERN MEIGS COUNTY...NORTHERN RHEA COUNTY
 
THE THUNDERSTORM WAS MOVING EAST AT 30 MILES AN HOUR AND WILL AFFECT
NORTHERN PORTIONS OF RHEA AND MEIGS COUNTIES INCLUDING SPRING CITY
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY KLIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 1:03 PM EDT	Severe Thunderstorm Warning	FFC	Meigs, Rhea	42 min
Jun 7, 1:20 PM EDT	Severe Thunderstorm Warning	FFC	McMinn	25 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1990 Every severe thunderstorm warning in 1990

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.