Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 89, NWS Nashville, TN

August 4, 2003Wayne County, Tennessee

NWS Nashville, TN issued this flash flood warning at Aug 4, 2003, 11:13 PM CDT for Wayne County, Tennessee. It was in force for 2 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 4, 2003, 11:13 PM CDT (04:13 UTC)
Expired: Aug 5, 2003, 1:15 AM CDT
In force: 2 hr
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Wayne County, TN

The radar

The Nashville radar (KOHX), 155 km from the middle of the area, began a volume at 04:14 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, 4.2 hours before the alert went out and 144 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: 2474 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KOHX 050415
FFWBNA
TNC181-050615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1113 PM CDT MON AUG 4 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WAYNE COUNTY IN TENNESSEE

* UNTIL 115 AM CDT.

* AT 1109 PM CDT...WEATHER RADAR INDICATED VERY HEAVY RAIN ACROSS 
ROUGHLY THE NORTHERN TWO THIRDS OF WAYNE COUNTY. THE THUNDERSTORMS 
ARE MOVING VERY SLOWLY TO THE SOUTHEAST AND THE ADDITIONAL RAINFALL 
WILL ONLY INCREASE THE POTENTIAL FOR FLASH FLOODING.

* CITIES AFFECTED THROUGH 115 AM CDT INCLUDE...
  WAYNESBORO...COLLINWOOD

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...
ACT QUICKLY.

LAT...LON 3541 8789 3509 8791 3508 8767 3544 8767

$$

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 8:44 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	46 min
Aug 4, 8:55 PM CDT	Severe Thunderstorm Warning	OHX	Perry	35 min
Aug 4, 9:21 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	39 min
Aug 4, 9:45 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	45 min
Aug 4, 9:58 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	42 min
Aug 4, 10:20 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	40 min
Aug 4, 10:26 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	49 min
Aug 4, 10:35 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	40 min
Aug 4, 10:55 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale	35 min
Aug 4, 10:55 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	50 min
Aug 4, 11:07 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb	38 min
Aug 4, 11:09 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	51 min
Aug 4, 11:34 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton, Putnam, White	41 min
Aug 4, 11:43 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	32 min
Aug 5, 12:17 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, White	43 min
Aug 5, 12:59 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	16 min
Aug 5, 2:01 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury	59 min

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.