Alert archive / Tennessee / Tornado Warnings in 1998

Tornado Warning 8, NWS Morristown, TN

April 3, 1998Cumberland County, Tennessee

NWS Morristown, TN issued this tornado warning at Apr 3, 1998, 5:08 PM CST for Cumberland County, Tennessee. It was in force for 52 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
Apr 3, 1998, 5:08 PM CST (23:08 UTC)
Expired
Apr 3, 1998, 6:00 PM CST
In force
52 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Cumberland County, TN

The radar

The Nashville radar (KOHX), 144 km from the middle of the area, began a volume at 23:07 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.

IssuedProductOfficeLasted
Apr 3, 1:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.1 hours before the alert went out and 145 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 1998-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1998-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
888 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
46 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 
TTAA00 KMRX 032312 RRA
TORMRX
TNC035-040000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KNOXVILLE TRI CITIES TN
608 PM EST (508 PM CST) FRI APR 3 1998

THE NATIONAL WEATHER SERVICE IN KNOXVILLE TRI CITIES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  700 PM EST (600 PM CST)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST TENNESSEE

   ...CUMBERLAND COUNTY

AT 510 PM CST DOPPLER RADAR INDICATED A POSSIBLE TORNADO JUST EAST OF
SPARTA IN WHITE COUNTY. THIS STORM IS MOVING EAST AT 60 MPH AND WILL BE
IN CUMBERLAND COUNTY BETWEEN 515 PM AND 520 PM CST. PLEASANT HILL WILL
BE AFFECTED BY 530 AND CROSSVILLE BY 540 PM CST. IF YOU ARE IN THE PATH
OF THIS STORM TAKE ACTION IMMEDIATELY.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW S,POT.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 3:02 PM CSTSevere Thunderstorm WarningMRXMorgan, Roane28 min
Apr 3, 3:16 PM CSTTornado WarningMRXMeigs, Rhea44 min
Apr 3, 3:17 PM CSTSevere Thunderstorm WarningMRXAnderson43 min
Apr 3, 3:45 PM CSTSevere Thunderstorm WarningMRXKnox, Union45 min
Apr 3, 4:00 PM CSTTornado WarningMRXBradley, Hamilton45 min
Apr 3, 4:08 PM CSTSevere Thunderstorm WarningMRXClaiborne, Grainger67 min
Apr 3, 4:37 PM CSTSevere Thunderstorm WarningMRXHamblen, Hancock, Hawkins53 min
Apr 3, 4:37 PM CSTSevere Thunderstorm WarningMRXBlount, Knox38 min
Apr 3, 4:46 PM CSTSevere Thunderstorm WarningMRXFentress44 min
Apr 3, 4:47 PM CSTTornado WarningMRXBlount, Knox28 min
Apr 3, 4:52 PM CSTTornado WarningMRXFentress53 min
Apr 3, 4:55 PM CSTTornado WarningMRXSevier35 min
Apr 3, 4:56 PM CSTSevere Thunderstorm WarningMRXMonroe34 min
Apr 3, 5:08 PM CSTTornado WarningMRXJefferson37 min
Apr 3, 5:23 PM CSTTornado WarningMRXHamilton, Meigs, Rhea52 min
Apr 3, 5:25 PM CSTSevere Thunderstorm WarningMRXCocke, Greene65 min
Apr 3, 5:25 PM CSTSevere Thunderstorm WarningMRXSullivan65 min
Apr 3, 5:31 PM CSTSevere Thunderstorm WarningMRXScott44 min
Apr 3, 5:31 PM CSTTornado WarningMRXCocke29 min
Apr 3, 5:35 PM CSTSevere Thunderstorm WarningMRXMcMinn40 min
Apr 3, 5:45 PM CSTSevere Thunderstorm WarningMRXWashington60 min
Apr 3, 5:47 PM CSTSevere Thunderstorm WarningMRXMorgan, Roane58 min
Apr 3, 5:47 PM CSTSevere Thunderstorm WarningMRXCampbell58 min
Apr 3, 5:49 PM CSTSevere Thunderstorm WarningMRXCumberland26 min

Nearby

Tornado Warnings in Tennessee, 1998Every tornado warning in 1998Tornadoes in 1998

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.