Alert archive / Tennessee / Flash Flood Warnings in 1986

Flash Flood Warning 4, NWS Nashville, TN

November 8, 1986Wilson County, Tennessee

NWS Nashville, TN issued this flash flood warning at Nov 8, 1986, 7:50 PM CST for Wilson County, Tennessee. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Nov 8, 1986, 7:50 PM CST (01:50 UTC)
Expired
Nov 8, 1986, 11:45 PM CST
In force
4 hr
Issued by
NWS Nashville, TN
Area
Whole counties

County Wilson 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, 1.8 hours before the alert went out and 27 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 1986-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1986-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
663 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 
TTAAOO KBNA 090141
FFWBNA
TNC189-090545-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
750 PM CST SAT NOV  8 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1145 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN CENTRAL TENNESSEE
          ..WILSON

HEAVY THUNDERSTORMS ARE CONTINUING ACROSS WILSON COUNTY AS WELL AS TO
THE WEST AND SOUTHWEST. FLOODING HAS BEEN REPORTED AT MANY LOCATIONS
IN WILSON COUNTY ALREDY AND MORE RAIN WILL COMPOUND THE PROBLEM.
HEAVY RAINS CAN BE EXPECTED OFF AND ON FOR THE REMAINDER OF THE NIGHT
SO THAT THE FLOODING MAY BE SLOW TO ABATE.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES, DIPS, OR LOW SPOTS IF WATER COVERS THE
ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM, EVEN A SMALL ONE,
ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

Nearby

Flash Flood Warnings in Tennessee, 1986Every flash flood warning in 1986

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.