Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 60, NWS Nashville, TN

June 18, 2003Sumner County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 18, 2003, 5:03 AM CDT for Sumner County, Tennessee. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 18, 2003, 5:03 AM CDT (10:03 UTC)
Expired
Jun 18, 2003, 7:00 AM CDT
In force
117 min
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Sumner County, TN

The radar

The Nashville radar (KOHX), 23 km from the middle of the area, began a volume at 10:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.1 hours before the alert went out and 36 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 181008
FFWBNA
TNC165-181200-

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 700 AM CDT

* AT 505 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN FALLING OVER WESTERN SUMNER COUNTY FROM WHITE HOUSE TO PORTLAND.
  DOPPLER WEATHER RADAR ESTIMATED NEARLY 2 INCHES OF RAIN HAD FALLEN IN 
  THE LAST HOUR. AN ADDITIONAL 2 INCHES IS LIKELY THROUGH 7 AM. THE
  EXCESSIVE RAINFALL WILL CAUSE SMALL STREAMS AND CREEKS TO RISE QUICKLY.
  OTHER PARTS OF SUMNER COUNTY CAN ALSO EXPECT HEAVY RAINFALL AS STORMS 
  DEVELOP.

* THE THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE...
  IN SUMNER COUNTY THROUGH 7 AM

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.

&&
BOYD
LAT...LON 3641 8676 3628 8660 3652 8625 3665 8646

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 3:47 AM CDTFlash Flood WarningOHXMontgomery2 hr
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; radar from the NEXRAD Level II archive.