Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 86, NWS Nashville, TN

August 3, 2003Overton County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 3, 2003, 4:47 AM CDT for Overton 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 outline as issued.

The facts

Issued
Aug 3, 2003, 4:47 AM CDT (09:47 UTC)
Expired
Aug 3, 2003, 7:45 AM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Overton County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.8 hours before the alert went out and 122 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 2003-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 149 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 2003-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
149 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
1010 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
93 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 
WGUS54 KOHX 030947
FFWBNA
TNC133-031245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
447 AM CDT SUN AUG 3 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  OVERTON COUNTY IN TENNESSEE

* UNTIL 745 AM CDT

* AT 437 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED SHOWERS    
  AND THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER A LARGE PORTION   
  OF OVERTON COUNTY. MORE ACTIVE WEATHER UPSTREAM WILL BRING EVEN    
  MORE HEAVY RAINFALL TO THE WARNED AREA DURING AT LEAST THE NEXT    
  HOUR. DOPPLER RADAR ESTIMATES THAT AS MUCH AS 1.45 INCHES HAS      
  ACCUMULATED IN SOME SPOTS WITHIN THE PAST HOUR.

* TOWNS WITHIN THE WARNED AREA INCLUDE LIVINGSTON, CRAWFORD, AND     
  BEAVER HILL.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS OCCURRING OR
IMMINENT. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES, DIPS, OR OTHER LOW SPOTS IF WATER COVERS THE ROAD.
NEVER TRY TO CROSS A FLOWING STREAM, EVEN A SMALL ONE, ON FOOT. TO
ESCAPE RISING WATER, MOVE TO HIGHER GROUND.

LAT...LON 3630 8550 3615 8520 3615 8512 3621 8508
          3632 8513 3641 8512 3652 8521 3655 8529
          3649 8549
$$
ROSE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 9:20 PM CDTFlash Flood WarningOHXBenton3 hr
Aug 3, 2:17 AM CDTFlash Flood WarningOHXFranklin3 hr
Aug 3, 2:47 AM CDTFlash Flood WarningOHXTrousdale3 hr
Aug 3, 5:23 AM CDTFlash Flood WarningOHXFentress, Pickett3 hr
Aug 3, 5:33 AM CDTFlash Flood WarningOHXSmith3 hr

Nearby

Flash Flood Warnings in Tennessee, 2003Every flash flood warning in 2003

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.