Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 99, NWS Nashville, TN

August 7, 2003Clay County, Jackson County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 7, 2003, 5:50 PM CDT for Clay County, Jackson County, Tennessee. It was in force for 115 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
Aug 7, 2003, 5:50 PM CDT (22:50 UTC)
Expired
Aug 7, 2003, 7:45 PM CDT
In force
115 min
Issued by
NWS Nashville, TN
Area
Counties, with a storm outline in the text

Counties Clay County, TN, Jackson County, TN

The radar

The Nashville radar (KOHX), 84 km from the middle of the area, began a volume at 22:54 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, 10.8 hours before the alert went out and 92 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 2003-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2003-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 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
1176 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
16 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 072252
FFWBNA
TNC027-087-080045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
550 PM CDT THU AUG 7 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CLAY COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF CELINA
  JACKSON COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF GAINESBORO

* UNTIL 745 PM CDT

* AT 548 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
RAIN 9 MILES NORTHEAST OF CELINA...MOVING NORTHEAST AT 20 MPH. VERY 
HEAVY RAIN WAS ALSO NOTED JUST NORTH OF GAINESBORO.

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 3641 8578 3631 8561 3659 8540 3659 8573

$$

21
1 follow-up statement
000 
WGUS74 KOHX 072356
FFSBNA
TNC027-087-080045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
656 PM CDT THU AUG 7 2003

...FLASH FLOOD WARNING CONTINUES FOR CLAY AND JACKSON COUNTIES
UNTIL 745 PM...

THOUGH THE RAINFALL HAS WEAKENED IN INTENSITY...ADDITIONAL SHOWERS
AND SCATTERED HEAVIER THUNDERSTORMS MAY STILL DRIFT SOUTHWARD ACROSS
THE WARNED AREA LATER THIS EVENING. THUS FAR...RADAR PRECIPITATION
ESTIMATES INDICATE THAT AROUND 1 1/2 TO 2 INCHES OF RAINFALL HAS
FALLEN ACROSS A GOOD PORTION OF EASTERN CLAY COUNTY NEAR THE TOWN
OF CELINA.

IF THE STORMS ACROSS KY CAN HOLD TOGETHER THIS EVENING...ANY
ADDITIONAL RAINFALL COULD PRESENT FLOODING PROBLEMS ACROSS THE WARNED
AREA.

REMEMBER...FLASH FLOOD DEATHS ARE THE NUMBER ONE WEATHER RELATED
KILLER. PLEASE AVOID BECOMING A STATISTIC. IN ADDITION...REMEMBER
THAT FLASH FLOODING CAN STILL OCCUR FOR SEVERAL HOURS AFTER THE
RAINFALL SUBSIDES OR ENDS.

$$

21

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 7:42 PM CDTFlash Flood WarningOHXClay2 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.