Alert archive / Tennessee / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 4, NWS Nashville, TN

November 16, 1987Davidson County, Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Nov 16, 1987, 8:15 PM CST for Davidson County, Williamson County, Tennessee. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Nov 16, 1987, 8:15 PM CST (02:15 UTC)
Expired
Nov 16, 1987, 9:15 PM CST
In force
60 min
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Davidson County, TN, Williamson County, TN

The radar

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

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.3 hours before the alert went out and 24 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 00:00Z on 1987-11-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 00:00Z on 1987-11-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 317 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
918 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
317 m²/s²
0-3 km storm-relative helicity
326 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 170215
SVRBNA
TNC037-147-187-170315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
815 PM CST MON NOV 16 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  915 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN MIDDLE TENNESSEE
          ...DAVIDSON...ROBERTSON...WILLIAMSON
 
AT 810 PM CST RADAR INDICATES A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM NEAR THE KENTUCKY BORDER SOUTH TO NEAR LEWISBURG IN
SOUTH MIDDLE TENNESSEE.  THESE STORMS ARE MOVING TO THE NORTH AT 50
MPH. THE LINE THAT THESE STORMS FORM IS DRIFTING SLOWLY TO THE
EAST...EXPECT HEAVY RAINFALL AS THESE STORMS MOVE THROUGH YOUR
LOCATION.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG 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
Nov 16, 8:15 PM CSTSevere Thunderstorm WarningOHXRobertson60 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1987Every severe thunderstorm warning in 1987

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.