Alert archive / Virginia / Tornado Warnings in 2001

Tornado Warning 1, NWS Morristown, TN

August 23, 2001City of Bristol, Virginia; Sullivan County, Tennessee

NWS Morristown, TN issued this tornado warning at Aug 23, 2001, 9:46 PM EDT for City of Bristol, Virginia; Sullivan 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 counties it named.

The facts

Issued: Aug 23, 2001, 9:46 PM EDT (01:46 UTC)
Expired: Aug 23, 2001, 10:15 PM EDT
In force: 29 min
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Sullivan County, TN, City of Bristol, VA

The radar

The Knoxville radar (KMRX), 112 km from the middle of the area, began a volume at 01:48 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.8 hours before the alert went out and 217 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: 769 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 1545 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

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

299 
WFUS54 KMRX 240147
TORMRX
TNC163-VAC520-240215-
/NEW.KMRX.TO.W.0007.240146-240215/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
946 PM EDT THU AUG 23 2001

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* TORNADO WARNING FOR...
  THE CITY OF BRISTOL VA
  SULLIVAN COUNTY IN EAST TENNESSEE

* UNTIL 1015 PM EDT

* AT 943 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO NEAR BRISTOL         
  TN...MOVING SOUTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  SOUTH HOLSTON DAM AROUND 955 PM EDT
  HARR AROUND 1000 PM EDT

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

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS. 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 3661 8202 3659 8224 3645 8209 3660 8189

DMG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 8:01 PM EDT	Severe Thunderstorm Warning	MRX	Washington	44 min
Aug 23, 9:17 PM EDT	Severe Thunderstorm Warning	MRX	Washington	43 min
Aug 23, 9:41 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	49 min
Aug 23, 10:07 PM EDT	Severe Thunderstorm Warning	MRX	Johnson	38 min
Aug 23, 11:16 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	44 min

Nearby

Tornado Warnings in Virginia, 2001 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.