Alert archive / Tennessee / Tornado Warnings in 2003

Tornado Warning 15, NWS Morristown, TN

July 13, 2003Morgan County, Tennessee

NWS Morristown, TN issued this tornado warning at Jul 13, 2003, 5:16 PM EDT for Morgan County, Tennessee. It was in force for 29 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: Jul 13, 2003, 5:16 PM EDT (21:16 UTC)
Expired: Jul 13, 2003, 5:45 PM EDT
In force: 29 min
Issued by: NWS Morristown, TN
Area: Counties, with a storm outline in the text

County Morgan County, TN

The radar

The Knoxville radar (KMRX), 99 km from the middle of the area, began a volume at 21:16 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
Jul 13, 4:05 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.3 hours before the alert went out and 189 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: 1439 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 779 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

831 
WFUS54 KMRX 132116
TORMRX
TNC129-132145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
516 PM EDT SUN JUL 13 2003

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  MORGAN COUNTY IN EAST TENNESSEE

* UNTIL 545 PM EDT

* AT 511 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO NEAR LONE MOUNTAIN
  STATE FOREST...OR 4 MILES SOUTHEAST OF WARTBURG...MOVING SOUTHEAST
  AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  RURAL SOUTHEASTERN MORGAN COUNTY THROUGH 545 PM EDT

THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY
ISSUED FOR THE WARNED AREA.

LAT...LON 3615 8448 3605 8465 3598 8453 3606 8434

$$

DMG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 1:06 PM EDT	Severe Thunderstorm Warning	MRX	Morgan	54 min
Jul 13, 1:16 PM EDT	Severe Thunderstorm Warning	MRX	Scott	29 min
Jul 13, 4:11 PM EDT	Severe Thunderstorm Warning	MRX	Morgan	49 min
Jul 13, 4:43 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton	32 min
Jul 13, 4:58 PM EDT	Severe Thunderstorm Warning	MRX	Morgan	47 min
Jul 13, 5:00 PM EDT	Severe Thunderstorm Warning	MRX	Bledsoe	45 min
Jul 13, 5:30 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton, Sequatchie	60 min
Jul 13, 5:36 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Roane	39 min
Jul 13, 5:40 PM EDT	Severe Thunderstorm Warning	MRX	Marion	65 min
Jul 13, 5:59 PM EDT	Severe Thunderstorm Warning	MRX	Bradley	61 min
Jul 13, 6:16 PM EDT	Severe Thunderstorm Warning	MRX	Loudon, Roane	44 min
Jul 13, 6:30 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton	60 min
Jul 13, 6:47 PM EDT	Severe Thunderstorm Warning	MRX	McMinn, Meigs, Monroe	58 min
Jul 13, 6:58 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, Loudon	47 min
Jul 13, 7:44 PM EDT	Severe Thunderstorm Warning	MRX	Monroe	46 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.