Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 21, NWS Nashville, TN

June 18, 1992Sumner County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 18, 1992, 3:28 PM CDT for Sumner County, Tennessee. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 18, 1992, 3:28 PM CDT (20:28 UTC)
Expired
Jun 18, 1992, 4:00 PM CDT
In force
32 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Sumner County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.5 hours before the alert went out and 40 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 1992-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 957 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 1992-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
957 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
578 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
1.1
Supercell composite
7.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBNA 182028 COR
SVRBNA
TNC165-182100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED FOR TIME OF STORM...
NATIONAL WEATHER SERVICE NASHVILLE TN
328 PM CDT THU JUN 18 1992

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  400 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN MIDDLE TENNESSEE

   ...NORTHERN SUMNER COUNTY

AT 220 PM CDT...NASHVILLE RADAR SHOWED A SEVERE THUNDERSTORM
10 MILES EAST OF PORTLAND IN SUMNER COUNTY. HEAVY RAIN...
DANGEROUS LIGHTNING...AND STRONG WINDS MAY ACCOMPANY THIS STORM.

THE STORM WAS MOVING EAST AT 25 MILES AN HOUR.


WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STR"ONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 2:03 PM CDTSevere Thunderstorm WarningOHXLincoln57 min
Jun 18, 3:09 PM CDTSevere Thunderstorm WarningOHXWilson51 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.