Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 96, NWS Nashville, TN

August 6, 2003Perry County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 6, 2003, 3:50 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
Aug 6, 2003, 3:50 PM CDT (20:50 UTC)
Expired
Aug 6, 2003, 7:00 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 radar

The Nashville radar (KOHX), 143 km from the middle of the area, began a volume at 20:49 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, 8.8 hours before the alert went out and 133 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 2003-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 127 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 2003-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
127 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1148 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 062053
FFWBNA
TNC135-070000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
350 PM CDT WED AUG 6 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PERRY COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF LINDEN
  
* UNTIL 700 PM CDT

* AT 344 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN OF ABOUT 2 INCHES PER HOUR HAS FALLEN OVER PERRY COUNTY. MORE 
  HEAVY RAIN IS EXPECTED TO CONTINUE FOR THE NEXT FEW HOURS. 
  AREAS JUST SOUTH OF LOBELVILLE AND ALSO IN EXTREME SOUTHWEST 
  PART OF PERRY COUNTY HAVE ALREADY RECEIVED HEAVY RAINS 
  AND FLOODING IS LIKELY IN THOSE AREAS.

A FLASH FLOOD WARNING MEANS THAT FLASH FLOODING IS IMMINENT OR
OCCURRING. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS, OR WATERS
OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS,
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

LAT...LON 3554 8801 3542 8799 3544 8756 3574 8783

$$

END/ORCHANIAN
1 follow-up statement
000 
WGUS74 KOHX 062248
FFSBNA
TNC101-135-070015-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
547 PM CDT WED AUG 6 2003

...FLASH FLOOD WARNING CONTINUES FOR PERRY COUNTY UNTIL 7 PM...
...FLASH FLOOD WARNING CONTINUES FOR LEWIS COUNTY UNTIL 715 PM...

THOUGH THE HEAVIEST RAINFALL HAS MOVED SOUTH OF THE WARNING AREA...
SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE SOUTH ACROSS THE AREA
THROUGH 7PM. GIVEN THE HEAVY RAINS THAT OCCURRED EARLIER...ANY
ADDITIONAL RAINFALL THAT FALLS WITHIN THE VALID TIME OF THE WARNING
COULD PRODUCE FLASH FLOODING.

IF TRAVELING BY CAR...DO NOT ATTEMPT TO DRIVE ACROSS WATER OF
UNKNOWN DEPTH. KEEP IN MIND THAT FLASH FLOOD DEATHS ARE THE NUMBER
ONE WEATHER RELATED KILLER. PLEASE AVOID BECOMING A STATISTIC.

$$

21

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 10:21 AM CDTFlash Flood WarningOHXMaury3 hr
Aug 6, 12:40 PM CDTFlash Flood WarningOHXCannon3 hr
Aug 6, 12:55 PM CDTFlash Flood WarningOHXRutherford3 hr
Aug 6, 1:20 PM CDTFlash Flood WarningOHXLewis3 hr
Aug 6, 1:34 PM CDTSevere Thunderstorm WarningOHXHickman, Lewis41 min
Aug 6, 2:03 PM CDTFlash Flood WarningOHXWilliamson3 hr
Aug 6, 2:17 PM CDTFlash Flood WarningOHXHickman3 hr
Aug 6, 3:13 PM CDTSevere Thunderstorm WarningOHXBenton32 min
Aug 6, 3:46 PM CDTSevere Thunderstorm WarningOHXPerry, Wayne44 min
Aug 6, 4:13 PM CDTFlash Flood WarningOHXLewis3 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.