Alert archive / Tennessee / Tornado Warnings in 2004

Tornado Warning 26, NWS Nashville, TN

October 18, 2004Giles County, Lawrence County, Tennessee

NWS Nashville, TN issued this tornado warning at Oct 18, 2004, 6:03 PM CDT for Giles County, Lawrence County, Tennessee. It was in force for 27 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: Oct 18, 2004, 6:03 PM CDT (23:03 UTC)
Expired: Oct 18, 2004, 6:30 PM CDT
In force: 27 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Giles County, TN, Lawrence County, TN

The radar

The Northeast Alabama radar (KHTX), 101 km from the middle of the area, began a volume at 23:03 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
Oct 18, 3:20 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.1 hours before the alert went out and 135 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 142 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 182303
TORBNA
TNC055-099-182330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
602 PM CDT MON OCT 18 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN GILES COUNTY IN TENNESSEE
  EXTREME SOUTHEASTERN LAWRENCE COUNTY IN TENNESSEE

* UNTIL 630 PM CDT

* AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 12 MILES WEST OF
  MINOR HILL...OR ABOUT 19 MILES SOUTH OF LAWRENCEBURG...MOVING EAST
  AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  MINOR HILL BY 625 PM CDT

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE 
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. EVACUATE MOBILE
HOMES. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 3506 8744 3488 8742 3492 8680 3515 8683

$$

JLM

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 10:14 AM CDT	Severe Thunderstorm Warning	OHX	Montgomery	31 min
Oct 18, 6:31 PM CDT	Tornado Warning	OHX	Giles	29 min

Nearby

Tornado Warnings in Tennessee, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.