Alert archive / Tennessee / Flash Flood Warnings in 2004

Flash Flood Warning 101, NWS Nashville, TN

December 7, 20049 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Dec 7, 2004, 4:55 AM CST for 9 counties in 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
Dec 7, 2004, 4:55 AM CST (10:55 UTC)
Expired
Dec 7, 2004, 8:00 AM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

Counties Bedford County, TN, Clay County, TN, Jackson County, TN, Macon County, TN, Marshall County, TN, Rutherford County, TN, Smith County, TN, Trousdale County, TN, Wilson County, TN

The radar

The Nashville radar (KOHX), 36 km from the middle of the area, began a volume at 10:56 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, 10.9 hours before the alert went out and 33 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 2004-12-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 63 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 00:00Z on 2004-12-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.1939587897Sfc1 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
63 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
146 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 071057
FFWOHX
TNC003-027-087-111-117-149-159-169-189-071400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
455 AM CST TUE DEC 7 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BEDFORD COUNTY IN TENNESSEE
  CLAY COUNTY IN TENNESSEE
  JACKSON COUNTY IN TENNESSEE
  MACON COUNTY IN TENNESSEE
  NORTHERN MARSHALL COUNTY IN TENNESSEE
  RUTHERFORD COUNTY IN TENNESSEE
  SMITH COUNTY IN TENNESSEE
  TROUSDALE COUNTY IN TENNESSEE
  WILSON COUNTY IN TENNESSEE
  THIS INCLUDES THE CITIES OF SHELBYVILLE...CELINA...GAINESBORO...
  LAFAYETTE...LEWISBURG...MURFREESBORO...CARTHAGE...HARTSVILLE 
  AND LEBANON.

* UNTIL 800 AM CST

* AT 450 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN OVER THE WARNED AREA. RAINFALL RATES ARE APPROACHING
  ONE INCH PER HOUR. THIS ADDITIONAL RAINFALL WILL LIKELY RESULT IN
  FLOODING OF LOW LYING OR FLOOD PRONE AREAS AS WELL AS CITY STREETS
  IN URBAN AREAS.

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 3538 8696 3538 8656 3545 8629 3589 8614
      3627 8581 3625 8560 3645 8546 3665 8533
      3667 8583 3669 8621 3636 8631 3632 8643
      3598 8666 3581 8664 3570 8678

$$

JLM

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 7, 2:35 AM CSTFlash Flood WarningOHXBenton, Houston, Humphreys, Perry, Stewart, Wayne3 hr
Dec 7, 3:03 AM CSTFlash Flood WarningOHXCheatham, Dickson, Hickman, Lewis, Montgomery, Robertson3 hr
Dec 7, 3:27 AM CSTFlash Flood WarningOHXGiles, Lawrence3 hr
Dec 7, 4:03 AM CSTFlash Flood WarningOHXDavidson, Sumner, Williamson3 hr
Dec 7, 4:22 AM CSTFlash Flood WarningOHXMaury3 hr
Dec 7, 5:05 AM CSTSevere Thunderstorm WarningOHXCannon, DeKalb, Jackson, Putnam, Rutherford, Smith and 1 more25 min
Dec 7, 5:11 AM CSTSevere Thunderstorm WarningOHXCannon, DeKalb, Jackson, Putnam, Rutherford, Smith and 1 more19 min
Dec 7, 5:47 AM CSTFlash Flood WarningOHXCannon, Coffee, DeKalb, Putnam3 hr
Dec 7, 6:41 AM CSTFlash Flood WarningOHXFentress, Overton, Pickett, Putnam3 hr

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; radar from the NEXRAD Level II archive.