Alert archive / Tennessee / Flash Flood Warnings in 2003

Flash Flood Warning 12, NWS Nashville, TN

April 29, 2003Lewis County, Maury County, Tennessee

NWS Nashville, TN issued this flash flood warning at Apr 29, 2003, 9:08 PM CDT for Lewis County, Maury 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: Apr 29, 2003, 9:08 PM CDT (02:08 UTC)
Expired: Apr 30, 2003, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Lewis County, TN, Maury County, TN

The radar

The Nashville radar (KOHX), 103 km from the middle of the area, began a volume at 02:07 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, 2.1 hours before the alert went out and 91 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: 2956 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1150 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 35 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 300214
FFWBNA
TNC101-119-300515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
908 PM CDT TUE APR 29 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN LEWIS COUNTY IN TENNESSEE
  SOUTHERN MAURY COUNTY IN TENNESSEE

* UNTIL 1200 MIDNIGHT CDT

* AT 901 PM CDT...TENNESSEE EMERGENCY OPERATIONS CENTER REPORTED
  FLASH FLOODING OVER SOUTHERN MAURY COUNTY...JUST SOUTH OF COLUMBIA.
  SEVERAL ROADS IN THE AREA HAVE BEEN CLOSED DUE TO HIGH WATER.
  LIGHT TO MODERATE RAIN WILL CONTINUE OVER THE AREA FOR THE NEXT
  SEVERAL HOURS AND WILL ONLY AGGRAVATE THE FLOODING SITUATION.  

* IF YOU ARE NEAR CREEKS OR STREAMS IN THE AREA...YOU SHOULD MOVE TO 
  HIGHER GROUND IMMEDIATELY. 

&&

LAT...LON 3556 8738 3549 8737 3548 8697 3558 8732

$$
19

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 7:04 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	26 min
Apr 29, 7:16 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	29 min
Apr 29, 7:38 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis	22 min
Apr 29, 7:40 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	50 min
Apr 29, 7:44 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	46 min
Apr 29, 7:52 PM CDT	Severe Thunderstorm Warning	OHX	Humphreys	38 min
Apr 29, 8:01 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	44 min
Apr 29, 9:18 PM CDT	Severe Thunderstorm Warning	OHX	Overton	27 min
Apr 29, 9:19 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys	41 min
Apr 29, 9:29 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	61 min
Apr 29, 9:57 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys, Overton	48 min
Apr 29, 10:44 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys	46 min
Apr 29, 11:51 PM CDT	Flash Flood Warning	OHX	Lewis, Maury	3 hr
Apr 30, 2:50 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren	40 min
Apr 30, 3:32 PM CDT	Flash Flood Warning	OHX	Cumberland, Van Buren	118 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.