Alert archive / Tennessee / Flash Flood Warnings in 2002

Flash Flood Warning 15, NWS Nashville, TN

March 17, 20028 counties in Tennessee

NWS Nashville, TN issued this flash flood warning at Mar 17, 2002, 4:59 PM CST for 8 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 counties it named.

The facts

Issued
Mar 17, 2002, 4:59 PM CST (22:59 UTC)
Expired
Mar 17, 2002, 7:45 PM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Benton County, TN, Cheatham County, TN, Davidson County, TN, Dickson County, TN, Hickman County, TN, Humphreys County, TN, Perry County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 81 km from the middle of the area, began a volume at 23:03 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 12:00Z, 11.0 hours before the alert went out and 74 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 2002-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 2002-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 298 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
298 m²/s²
0-3 km storm-relative helicity
304 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 172259
FFWBNA
TNC005-021-037-043-081-085-135-187-180145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
451 PM CST SUN MAR 17 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BENTON COUNTY IN TENNESSEE
  CHEATHAM COUNTY IN TENNESSEE
  DAVIDSON COUNTY IN TENNESSEE
  DICKSON COUNTY IN TENNESSEE
  HICKMAN COUNTY IN TENNESSEE
  HUMPHREYS COUNTY IN TENNESSEE
  PERRY COUNTY IN TENNESSEE
  WILLIAMSON COUNTY IN TENNESSEE
  THIS INCLUDES THE CITIES OF...NASHVILE...FAIRVIEW...BRENTWOOD AND WAVERLY

* UNTIL 745 PM CST

* AT 444 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
   HEAVY RAIN ALONG A LINE FROM HALLIDAY IN SOUTHERN BENTON COUNTY
   TO DICKSON TO NASHVILLE. RAINFALL OF 1 TO 2 INCHES HAS OCCURRED 
   WITH MORE RAIN MOVING INTO THE AREA.

* EXPECT FLOODING OF ROADWAYS IN LOW LYING AREAS...PARTICULARLY
  THOSE ADJACENT TO DITCHES OR CREEKS. AN ADDITIONAL INCH OF RAINFALL 
  IS EXPECTED OVER THIS AREA DURING THE NEXT 2 HOURS. SPOTTERS
  HAVE REPORTED A FEW ROADS IN WESTERN WILLIAMSON COUNTY ARE UNDER WATER.

A FLOOD WARNING MEANS THAT 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 3602 8813 3570 8800 3600 8663 3642 8682

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 8:17 PM CSTSevere Thunderstorm WarningOHXLewis, Wayne28 min
Mar 16, 10:52 PM CSTSevere Thunderstorm WarningOHXCannon, DeKalb38 min
Mar 17, 12:13 AM CSTSevere Thunderstorm WarningOHXPerry47 min
Mar 17, 1:23 AM CSTFlash Flood WarningOHXBedford, Marshall3 hr
Mar 17, 5:24 PM CSTFlash Flood WarningOHXMacon, Sumner, Trousdale, Wilson3 hr

Nearby

Flash Flood Warnings in Tennessee, 2002Every flash flood warning in 2002

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.