Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Nashville, TN

January 7, 1998Marion County, Sequatchie County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jan 7, 1998, 10:17 AM CST for Marion County, Sequatchie 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
Jan 7, 1998, 10:17 AM CST (16:17 UTC)
Expired
Jan 7, 1998, 1:15 PM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Marion County, TN, Sequatchie County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 4.3 hours before the alert went out and 138 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 1998-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 1998-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
10 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
552 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
108 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 071619
FFWBNA
TNC031-051-055-099-103-127-061-115-153-071915-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1017 AM CST WED JAN 7 1998
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  115 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN MIDDLE TENNESSEE
 
   ...COFFEE COUNTY...FRANKLIN COUNTY...GILES COUNTY
   ...LAWRENCE COUNTY...LINCOLN COUNTY...MOORE COUNTY
 
IN SOUTHEAST TENNESSEE
 
   ...GRUNDY COUNTY...MARION COUNTY...SEQUATCHIE COUNTY
 
AT 1012 AM CST AN AREA OF MODERATE TO HEAVY RAIN WAS MOVING NORTH ACROSS
SOUTHERN MIDDLE TENNESSEE. THIS AREA OF RAIN WILL PRODUCE RAINFALL
AMOUNTS BETWEEN A HALF TO ONE INCH BETWEEN NOW AND 12 NOON. THIS
RAINFALL ON TOP OF THE SATURATED SOIL WILL LIKELY CAUSE FLASH FLOODING.
 
LOCAL LAW ENFORCEMENT OFFICES WERE ALREADY REPORTING HIGH WATER PROBELMS
IN MOORE...LINCOLN AND GRUNDY COUNTIES. WITH THE ADDITIONAL HEAVY
RAINFALL...MORE HIGH WATER PROBLEMS WILL LIKELY BECOME WIDESPREAD.
 
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
Jan 7, 10:17 AM CSTFlash Flood WarningOHXCoffee, Franklin, Grundy, Moore3 hr
Jan 7, 10:17 AM CSTFlash Flood WarningOHXGiles, Lawrence, Lincoln3 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXFranklin, Grundy, Marion4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXJackson, Putnam4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXBedford, Coffee, Lincoln, Marshall, Moore4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXLawrence, Lewis, Maury, Wayne4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXClay, Overton, Pickett4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXBledsoe, Sequatchie, Van Buren, Warren, White4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXCannon, DeKalb4 hr
Jan 7, 12:03 PM CSTFlash Flood WarningOHXGiles4 hr

Nearby

Flash Flood Warnings in Tennessee, 1998Every flash flood warning in 1998

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.