Alert archive / Tennessee / Tornado Warnings in 2001

Tornado Warning 21, NWS Nashville, TN

October 24, 2001Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Oct 24, 2001, 7:51 PM CDT for Williamson County, Tennessee. It was in force for 39 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Oct 24, 2001, 7:51 PM CDT (00:51 UTC)
Expired: Oct 24, 2001, 8:30 PM CDT
In force: 39 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Williamson County, TN

What was reported inside it

Time	Report	Where	Remark
Oct 24, 8:00 PM CDT	Tornado F0	Leipers Fork, TN	A few trees were down.
Oct 24, 8:00 PM CDT	Hail 0.75	Franklin, TN	Spotters relayed report of dime size hail covering the roads from Franklin to Brentwood.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 24, 6:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.9 hours before the alert went out and 38 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: 659 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1147 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 245 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

769 
WFUS54 KOHX 250052
TORBNA
TNC187-250130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
751 PM CDT WED OCT 24 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  WILLIAMSON COUNTY IN TENNESSEE
  THIS INCLUDES THE CITIES OF...FRANKLIN...BRENTWOOD

* UNTIL 830 PM CDT

* AT 748 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 10 MILES WEST OF FRANKLIN...OR ABOUT 9 MILES SOUTHEAST OF
  FAIRVIEW...MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  FRANKLIN AT 805 PM CDT
  BRENTWOOD AT 815 PM CDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT WEDNESDAY EVENING
FOR TENNESSEE.

$$
BOYD
LAT...LON 3598 8713 3581 8698 3583 8670 3601 8678

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 7:10 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Perry	50 min
Oct 24, 7:26 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	49 min
Oct 24, 7:28 PM CDT	Severe Thunderstorm Warning	OHX	Lewis, Wayne	62 min
Oct 24, 7:37 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	38 min
Oct 24, 7:52 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Maury	53 min
Oct 24, 7:55 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	35 min
Oct 24, 8:01 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Smith, Trousdale	44 min
Oct 24, 8:09 PM CDT	Severe Thunderstorm Warning	OHX	Giles	36 min
Oct 24, 8:10 PM CDT	Tornado Warning	OHX	Rutherford	35 min
Oct 24, 8:20 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson	55 min
Oct 24, 8:25 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall	50 min
Oct 24, 8:50 PM CDT	Severe Thunderstorm Warning	OHX	Lincoln, Moore	55 min
Oct 24, 8:52 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Overton, Putnam	53 min
Oct 24, 8:52 PM CDT	Severe Thunderstorm Warning	OHX	Pickett	53 min
Oct 24, 8:56 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford	34 min
Oct 24, 9:10 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Warren	50 min
Oct 24, 9:21 PM CDT	Severe Thunderstorm Warning	OHX	Franklin	54 min
Oct 24, 9:24 PM CDT	Tornado Warning	OHX	Coffee, Grundy	36 min
Oct 24, 9:32 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Van Buren, White	48 min
Oct 24, 9:39 PM CDT	Severe Thunderstorm Warning	OHX	Fentress	51 min
Oct 24, 10:22 PM CDT	Severe Thunderstorm Warning	OHX	Franklin	28 min

Nearby

Tornado Warnings in Tennessee, 2001 Every tornado warning in 2001 Tornadoes in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.