Alert archive / Tennessee / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 13, NWS Nashville, TN

March 31, 1993Robertson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 31, 1993, 12:28 PM CST for Robertson County, Tennessee. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Mar 31, 1993, 12:28 PM CST (18:28 UTC)
Expired
Mar 31, 1993, 1:30 PM CST
In force
62 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Robertson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.5 hours before the alert went out and 50 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 1993-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 1993-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.19395878Sfc1 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
25 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
854 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
40 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 KBNA 311830
SVRBNA
TNC147-311930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1228 PM CST WED MAR 31 1993
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN MIDDLE TENNESSEE
 
   ...NORTHERN ROBERTSON COUNTY
 
AT 1225 PM CST...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM OVER
NORTHERN ROBERTSON COUNTY...NEAR THE KENTUCKY STATELINE.
 
MOVEMENT WAS NORTH AT 35 MILES AN HOUR.
 
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 Nashville, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 11:41 AM CSTSevere Thunderstorm WarningOHXRobertson34 min
Mar 31, 12:51 PM CSTSevere Thunderstorm WarningOHXCheatham, Montgomery69 min
Mar 31, 1:06 PM CSTSevere Thunderstorm WarningOHXStewart69 min
Mar 31, 1:37 PM CSTSevere Thunderstorm WarningOHXPerry68 min
Mar 31, 2:46 PM CSTSevere Thunderstorm WarningOHXRobertson59 min
Mar 31, 2:51 PM CSTSevere Thunderstorm WarningOHXWilliamson69 min
Mar 31, 2:51 PM CSTSevere Thunderstorm WarningOHXSumner69 min
Mar 31, 3:20 PM CSTSevere Thunderstorm WarningOHXDavidson55 min
Mar 31, 3:29 PM CSTSevere Thunderstorm WarningOHXWilson61 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1993Every severe thunderstorm warning in 1993

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.