Alert archive / Tennessee / Tornado Warnings in 2000

Tornado Warning 38, NWS Nashville, TN

April 20, 2000DeKalb County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 20, 2000, 6:37 PM CDT for DeKalb County, Tennessee. It was in force for 23 min. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 20, 2000, 6:37 PM CDT (23:37 UTC)
Expired
Apr 20, 2000, 7:00 PM CDT
In force
23 min
Issued by
NWS Nashville, TN
Area
Whole counties

County DeKalb County, TN

The radar

The Nashville radar (KOHX), 72 km from the middle of the area, began a volume at 23:39 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.

What was reported inside it

TimeReportWhereRemark
Apr 20, 6:45 PM CDTHail 1Temperance Hall, TNQuarter size hail reported.
Apr 20, 6:45 PM CDTThunderstorm Wind 50 ESmithville, TNA few large tree limbs blown down in the Temperance Hall area. The largest limb was 6 inches in diameter.
Apr 20, 6:47 PM CDTThunderstorm Wind 50 ETemperance Hall, TNSeveral trees and large tree limbs were down.
Apr 20, 6:50 PM CDTThunderstorm Wind 60 ENorth Portion, TNEMA reported barn roof damaged in the northern part of the county.
Apr 20, 6:53 PM CDTHail 1.25Smithville, TNHail the size of half dollars were reported near Center Hill Dam.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 20, 5:15 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.6 hours before the alert went out and 71 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 2000-04-20Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2000-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 319 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
1180 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
319 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOHX 202339
TORBNA
TNC041-210000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
637 PM CDT THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN DE KALB COUNTY IN TENNESSEE

* UNTIL 700 PM CDT

* AT 633 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  TORNADO 2 MILES SOUTHEAST OF ALEXANDRIA...OR ABOUT 13 MILES        
  NORTHWEST OF _SMITHVILLE...MOVING EAST AT 40 MPH. A FUNNEL CLOUD    
  WAS REPORTED EARLIER NEAR WATERTOWN WITH THIS STORM.

THIS STORM IS ALSO CAPABLE OF PRODUCING LARGE HAIL. IF YOU ARE IN 
IT'S PATH...PLEASE TAKE COVER NOW!
$$

08

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 1:54 PM CDTSevere Thunderstorm WarningOHXRutherford, Wilson51 min
Apr 20, 1:58 PM CDTSevere Thunderstorm WarningOHXWilliamson32 min
Apr 20, 2:28 PM CDTSevere Thunderstorm WarningOHXDeKalb, Smith47 min
Apr 20, 3:06 PM CDTSevere Thunderstorm WarningOHXPutnam24 min
Apr 20, 3:15 PM CDTSevere Thunderstorm WarningOHXOverton30 min
Apr 20, 4:14 PM CDTSevere Thunderstorm WarningOHXDickson31 min
Apr 20, 4:26 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Robertson49 min
Apr 20, 4:36 PM CDTTornado WarningOHXCheatham24 min
Apr 20, 4:50 PM CDTTornado WarningOHXDavidson25 min
Apr 20, 4:56 PM CDTSevere Thunderstorm WarningOHXLewis, Wayne34 min
Apr 20, 5:07 PM CDTSevere Thunderstorm WarningOHXWilliamson53 min
Apr 20, 5:13 PM CDTSevere Thunderstorm WarningOHXHickman, Maury17 min
Apr 20, 5:27 PM CDTSevere Thunderstorm WarningOHXMaury48 min
Apr 20, 5:34 PM CDTSevere Thunderstorm WarningOHXMacon, Sumner, Trousdale41 min
Apr 20, 5:39 PM CDTTornado WarningOHXLewis, Maury51 min
Apr 20, 5:49 PM CDTTornado WarningOHXDavidson, Rutherford, Williamson26 min
Apr 20, 6:19 PM CDTTornado WarningOHXWilson26 min
Apr 20, 6:24 PM CDTSevere Thunderstorm WarningOHXMarshall21 min
Apr 20, 6:24 PM CDTTornado WarningOHXTrousdale, Wilson36 min
Apr 20, 6:24 PM CDTTornado WarningOHXMacon36 min
Apr 20, 6:41 PM CDTTornado WarningOHXBedford49 min
Apr 20, 6:54 PM CDTTornado WarningOHXPutnam51 min

Nearby

Tornado Warnings in Tennessee, 2000Every tornado warning in 2000Tornadoes in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.