Alert archive / Tennessee / Tornado Warnings in 2003

Tornado Warning 104, NWS Nashville, TN

August 22, 2003Robertson County, Sumner County, Tennessee

NWS Nashville, TN issued this tornado warning at Aug 22, 2003, 7:23 PM CDT for Robertson County, Sumner County, Tennessee. It was in force for 37 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 22, 2003, 7:23 PM CDT (00:23 UTC)
Expired: Aug 22, 2003, 8:00 PM CDT
In force: 37 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Robertson County, TN, Sumner County, TN

The radar

The Nashville radar (KOHX), 35 km from the middle of the area, began a volume at 00:26 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 watch it was issued in

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

Issued	Product	Office	Lasted
Aug 22, 5:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 48 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: 2889 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1273 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -26 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 
WFUS54 KOHX 230023
TORBNA
TNC147-165-230100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
723 PM CDT FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ROBERTSON COUNTY IN TENNESSEE
  NORTHERN SUMNER COUNTY IN TENNESSEE

* UNTIL 800 PM CDT

* AT 720 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER CROSS PLAINS...OR ABOUT 11 MILES SOUTH OF FRANKLIN...
  MOVING SOUTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
RURAL CENTRAL SUMNER COUNTY AT 740 PM CDT

DOPPLER RADAR INDICATED A TORNADO MAY FORM AT ANY TIME. TAKE COVER
NOW. ABANDON MOBILE HOMES AND VEHICLES. MOVE TO A BASEMENT...AN
INTERIOR ROOM OR HALLWAY...ON THE LOWEST FLOOR.

HEAVY RAIN COULD HIDE THIS TORNADO. TAKE COVER NOW IF YOU WAIT UNTIL
YOU SEE OR HEAR IT COMING, IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

LAT...LON 3670 8659 3658 8676 3637 8657 3645 8631

$$

04

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 7:21 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Smith	39 min
Aug 22, 7:27 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Sumner, Williamson, Wilson	48 min
Aug 22, 7:49 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	41 min
Aug 22, 8:00 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Marshall, Maury, Rutherford, Williamson and 1 more	45 min
Aug 22, 8:25 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Warren	50 min
Aug 22, 8:45 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Lawrence, Lincoln, Marshall, Maury and 1 more	45 min
Aug 22, 8:57 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys	48 min
Aug 22, 9:02 PM CDT	Severe Thunderstorm Warning	OHX	Franklin	43 min
Aug 22, 9:30 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lincoln	45 min
Aug 22, 9:39 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys, Perry	51 min

Nearby

Tornado Warnings in Tennessee, 2003 Every tornado warning in 2003 Tornadoes 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.