Alert archive / Tennessee / Flash Flood Warnings in 2004

Flash Flood Warning 67, NWS Nashville, TN

September 12, 2004Perry County, Tennessee

NWS Nashville, TN issued this flash flood warning at Sep 12, 2004, 5:47 PM CDT for Perry 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
Sep 12, 2004, 5:47 PM CDT (22:47 UTC)
Expired
Sep 12, 2004, 8:45 PM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

County Perry County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 125 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 2004-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 416 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 2004-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 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
416 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1012 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
113 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 122250
FFWBNA
TNC135-130145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
547 PM CDT SUN SEP 12 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PERRY COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF LINDEN

* UNTIL 845 PM CDT

* AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM SEVERAL VERY SLOW MOVING THUNDERSTORMS OVER
  SOUTHERN PERRY COUNTY. RADAR ESTIMATES AS MUCH AS 3 INCHES OF RAINFALL
  HAVE OCCURRED OVER SOUTH CENTRAL PERRY COUNTY ALONG AND EITHER     
  SIDE OF HIGHWAY 412.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
MOVE TO HIGHER GROUND.

LAT...LON 3574 8799 3557 8803 3550 8765 3572 8761

$$

JLM

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 1:51 PM CDTSevere Thunderstorm WarningOHXHumphreys54 min
Sep 12, 2:46 PM CDTSevere Thunderstorm WarningOHXHumphreys59 min
Sep 12, 2:57 PM CDTSevere Thunderstorm WarningOHXBenton48 min
Sep 12, 3:00 PM CDTSevere Thunderstorm WarningOHXBenton45 min
Sep 12, 3:44 PM CDTSevere Thunderstorm WarningOHXBenton61 min
Sep 12, 4:13 PM CDTSevere Thunderstorm WarningOHXHickman, Humphreys32 min
Sep 12, 4:43 PM CDTSevere Thunderstorm WarningOHXHickman, Lewis, Perry32 min
Sep 12, 4:57 PM CDTFlash Flood WarningOHXBenton, Humphreys3 hr
Sep 12, 5:16 PM CDTSevere Thunderstorm WarningOHXHickman, Perry29 min
Sep 12, 5:43 PM CDTSevere Thunderstorm WarningOHXLewis, Perry, Wayne32 min
Sep 12, 6:16 PM CDTSevere Thunderstorm WarningOHXPerry, Wayne29 min
Sep 12, 6:24 PM CDTSevere Thunderstorm WarningOHXWayne21 min
Sep 12, 6:56 PM CDTSevere Thunderstorm WarningOHXWayne34 min

Nearby

Flash Flood Warnings in Tennessee, 2004Every flash flood warning in 2004

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.