Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 85, NWS Atlanta, GA

June 18, 1992Grundy County, Marion County, Tennessee

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 18, 1992, 3:07 PM CDT for Grundy County, Marion County, Tennessee. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jun 18, 1992, 3:07 PM CDT (20:07 UTC)
Expired
Jun 18, 1992, 4:00 PM CDT
In force
53 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties Grundy County, TN, Marion County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.1 hours before the alert went out and 128 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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 18, 1:23 PM CDT, 1 hour 44 minutes before
GAZ001-182000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTA  GA
222 PM EDT THU JUN 18 1992

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR A SMALL PORTION OF
NORTHWEST GEORGIA AND WILL REMAIN IN EFFECT UNTIL 8 PM EDT. THE SOUTHERN
BORDER OF THE WATCH AREA EXTENDS INTO CHATTOOGA...GORDON AND GILMER
COUNTIES WHILE THE EASTERN EDGE EXTENDS INTO FANNIN COUNTY.

AT 215 PM...WEATHER SERVICE RADAR IN ATLANTA DID NOT INDICATE ANY SEVERE
WEATHER IN NORTHWEST GEORGIA. HOWEVER...A 25 MILE WIDE BAND OF SCATTERED
SHOWERS HAS DEVELOPED FROM NEAR ROME NORTHEAST TO BLAIRSVILLE IN EXTREME
NORTHWEST GEORGIA.  MOVEMENT OF THESE SHOWERS WAS SOUTHEAST AT 15 MILES
AN HOUR.

INCREASINGLY MOIST AND UNSTABLE AIR OVER NORTHWEST GEORGIA ALONG WITH
AFTERNOON TEMPERATURES INTO THE 80S WILL ALLOW SOME THUNDERSTORMS TO
REACH SEVERE LEVELS LATE THIS AFTERNOON THROUGH EARLY THIS EVENING IN
THE WATCH AREA. DAMAGING WINDS AND LARGE HAIL CAN BE EXPECTED WITH THESE
STRONGER STORMS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREAS.  PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS
AND LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

ZALESKI

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.