Alert archive / Tennessee / Flash Flood Warnings in 1997

Flash Flood Warning 4, NWS Nashville, TN

February 21, 1997Benton County, Tennessee

NWS Nashville, TN issued this flash flood warning at Feb 21, 1997, 6:35 AM CST for Benton County, Tennessee. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 21, 1997, 6:35 AM CST (12:35 UTC)
Expired
Feb 21, 1997, 9:30 AM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Whole counties

County Benton County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.6 hours before the alert went out and 132 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 1997-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1997-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 392 square meters per square second.1939587897117Sfc1 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
133 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
392 m²/s²
0-3 km storm-relative helicity
598 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBNA 211237
FFWBNA
TNC005-211530-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
635 AM CST FRI FEB 21 1997
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  930 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST TENNESSEE
 
   ...BENTON COUNTY
 
HEAVY RAINS...WHICH FELL OVER BENTON COUNTY EARLIER THIS MORNING...WILL
PRODUCE THE THREAT OF FLASH FLOODING UNTIL 9 AM CST. REPORTS FROM STORM
SPOTTERS INDICATE THAT SOME SMALL STREAMS IN THE CAMDEN AREA ARE AT
BANKFUL...AND COULD FLOOD SOME LOW-LYING AREAS BETWEEN NOW AND 9 AM CST.
 
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.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 6:01 AM CSTSevere Thunderstorm WarningOHXHouston, Humphreys44 min
Feb 21, 6:04 AM CSTSevere Thunderstorm WarningOHXStewart41 min
Feb 21, 6:07 AM CSTSevere Thunderstorm WarningOHXLawrence, Wayne53 min
Feb 21, 6:48 AM CSTSevere Thunderstorm WarningOHXMontgomery57 min
Feb 21, 6:57 AM CSTSevere Thunderstorm WarningOHXMaury48 min
Feb 21, 7:06 AM CSTSevere Thunderstorm WarningOHXCheatham, Davidson, Williamson69 min
Feb 21, 7:33 AM CSTSevere Thunderstorm WarningOHXRutherford, Sumner, Wilson57 min
Feb 21, 7:59 AM CSTSevere Thunderstorm WarningOHXFranklin46 min
Feb 21, 8:10 AM CSTSevere Thunderstorm WarningOHXCannon, DeKalb, Smith50 min
Feb 21, 8:17 AM CSTSevere Thunderstorm WarningOHXCoffee, Grundy43 min
Feb 21, 8:27 AM CSTSevere Thunderstorm WarningOHXJackson48 min
Feb 21, 8:32 AM CSTSevere Thunderstorm WarningOHXWarren43 min
Feb 21, 8:46 AM CSTSevere Thunderstorm WarningOHXOverton, Pickett44 min
Feb 21, 8:54 AM CSTSevere Thunderstorm WarningOHXWhite51 min
Feb 21, 9:02 AM CSTSevere Thunderstorm WarningOHXPutnam43 min

Nearby

Flash Flood Warnings in Tennessee, 1997Every flash flood warning in 1997

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.