Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 95, NWS Nashville, TN

August 6, 2003Hickman County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 6, 2003, 2:17 PM CDT for Hickman 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, 2:17 PM CDT (19:17 UTC)
Expired: Aug 6, 2003, 5:15 PM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Hickman County, TN

The radar

The Nashville radar (KOHX), 99 km from the middle of the area, began a volume at 19:17 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, 7.3 hours before the alert went out and 90 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 061919
FFWBNA
TNC081-062215-

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HICKMAN COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF CENTERVILLE

* UNTIL 515 PM CDT

* AT 205 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN HAS FALLEN OVER SOUTHERN AND CENTRAL HICKMAN COUNTY. SOME 
  FLOODING WAS OCCURRING ON THE LEWIS AND HICKMAN COUNTY LINE. MORE
  HEAVY RAIN WILL ENTER THE WARNED AREA FROM HUMPHREYS COUNTY. 

A FLASH FLOOD WARNING MEANS THAT FLASH 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 3565 8770 3571 8729 3597 8720 3594 8761

$$
END/ORCHANIAN

1 follow-up statement

000 
WGUS74 KOHX 062233
FFSBNA
TNC081-187-062300-

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

...FLASH FLOOD WARNINGS FOR HICKMAN AND WILLIAMSON COUNTIES HAVE
EXPIRED...

THE HEAVY RAINFALL THAT BROUGHT THE THREAT OF FLASH FLOODING TO
HICKMAN COUNTY AND WILLIAMSON COUNTY HAS NOW MOVED SOUTH OF THE
AREA. THEREFORE...THE POTENTIAL FOR FLASH FLOODING NO LONGER
EXISTS.

HOWEVER...WITH THE ONGOING POTENTIAL FOR ISOLATED SHOWERS AND
THUNDERSTORMS TO STILL OCCUR...THE PONDING OF WATER ON ROADWAYS AND
MINOR FLOODING OF LOW LYING AREAS WILL STILL BE POSSIBLE.

LAT...LON 3658 8577 3645 8561 3656 8496 3693 8539

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 10:21 AM CDT	Flash Flood Warning	OHX	Maury	3 hr
Aug 6, 12:40 PM CDT	Flash Flood Warning	OHX	Cannon	3 hr
Aug 6, 12:55 PM CDT	Flash Flood Warning	OHX	Rutherford	3 hr
Aug 6, 1:20 PM CDT	Flash Flood Warning	OHX	Lewis	3 hr
Aug 6, 1:34 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis	41 min
Aug 6, 2:03 PM CDT	Flash Flood Warning	OHX	Williamson	3 hr
Aug 6, 3:13 PM CDT	Severe Thunderstorm Warning	OHX	Benton	32 min
Aug 6, 3:46 PM CDT	Severe Thunderstorm Warning	OHX	Perry, Wayne	44 min
Aug 6, 3:50 PM CDT	Flash Flood Warning	OHX	Perry	3 hr
Aug 6, 4:13 PM CDT	Flash Flood Warning	OHX	Lewis	3 hr

Nearby

Flash Flood Warnings in Tennessee, 2003 Every 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.