Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 59, NWS Nashville, TN

June 18, 2003Montgomery County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 18, 2003, 3:47 AM CDT for Montgomery County, Tennessee. It was in force for 2 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
Jun 18, 2003, 3:47 AM CDT (08:47 UTC)
Expired
Jun 18, 2003, 6:00 AM CDT
In force
2 hr
Issued by
NWS Nashville, TN
Area
Whole counties

County Montgomery County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 8.8 hours before the alert went out and 81 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 2003-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1054 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 2003-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.193958Sfc1 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
1054 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
945 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 180854
FFWBNA
TNC125-181100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
347 AM CDT WED JUN 18 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONTGOMERY COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF CLARKSVILLE

* UNTIL 600 AM CDT

* AT 337 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN FALLING ACROSS MONTGOMERY COUNTY. DOPPLER RADAR ESTIMATED 
  2 INCHES OF RAIN HAD FALLEN IN THE LAST HOUR. AN ADDITIONAL 2 INCHES
  OF RAINFALL IS POSSIBLE THROUGH 6 AM. THIS WILL CAUSE FLOODING OF
  SMALL STREAMS AND CREEKS THROUGHOUT MONTGOMERY COUNTY. PONDING OF
  WATER ON ROADWAYS WILL BECOME A PROBLEM IN MANY AREAS OF THE COUNTY.

* THE THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL REMAIN...
  ACROSS MONTGOMERY COUNTY THROUGH 6 AM CDT

FLASH FLOODING IS IMMINENT. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS.
DO NOT DRIVE WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3640 8763 3627 8747 3654 8712 3662 8755

$$
BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 5:03 AM CDTFlash Flood WarningOHXSumner117 min
Jun 18, 12:45 PM CDTFlash Flood WarningOHXCumberland4 hr
Jun 18, 2:25 PM CDTFlash Flood WarningOHXFentress4 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.