Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 232, NWS Nashville, TN

August 20, 2002Wayne County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Aug 20, 2002, 3:03 PM CDT for Wayne County, Tennessee. It was in force for 42 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 20, 2002, 3:03 PM CDT (20:03 UTC)
Expired
Aug 20, 2002, 3:45 PM CDT
In force
42 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Wayne County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.1 hours before the alert went out and 146 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 2002-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3175 joules per kilogram.LCLLFCEL10008507005003002001001 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 2002-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.1939Sfc1 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
3175 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
719 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
-39 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.

571 
WUUS54 KOHX 202003
SVRBNA
TNC181-202045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
300 PM CDT TUE AUG 20 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WAYNE COUNTY IN TENNESSEE

* UNTIL 345 PM CDT

* AT 254 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  SEVERE THUNDERSTORMS SCATTERED ACROSS WAYNE COUNTY. THE STORMS WERE
  NEARLY STATIONARY.

* THE SEVERE THUNDERSTORMS WILL BE...
  ACROSS WAYNE COUNTY THROUGH 345 PM CDT

THESE ARE DANGEROUS STORMS. IF YOU ARE IN ITS PATH YOU SHOULD 
PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND 
DEADLY LIGHTNING.

$$
13

LAT...LON 3504 8769 3541 8762 3541 8798 3500 8801

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 20, 2:32 PM CDT, 31 minutes earlier.

Area forecast discussion, Aug 20, 2:32 PM CDT, 31 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
230 PM CDT TUE AUG 2002

CURRENT...REMNANTS OF MCS DEPOSITED BOUNDARY WHICH HAS TOUCHED OFF
SOME CONVECTION OVER FAR S. THIS WILL DIE OFF THIS EVE BUT WILL
MENTION FOR EARLY EVE ZONES. TEMPS IN 85 TO 90 RANGE FOR MOST PART.

ASSOCIATED VORT MAX FROM AFOREMENTIONED MCS WILL HOVER NEAR PAH THRU
WED MORNING AND THEN MOVE NE. DONT EXPECT CWA TO BE AFFECTED.  DRY
DAY TOMORROW THEN ISOLATED STUFF THU AS DEEPER MOISTURE COMES INTO
PLAY ACCOMPANIED BY WARMER TEMPS AS H5 RIDGE BUILDS.

AS FOR TEMPS... WILL BUY THE WARMER ETA MAXS.

BNA BB 72/95/73/95 -1-2
CSV BB 67/89/67/89 -1-2

.BNA...NONE.

MAG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 2:01 PM CDTSevere Thunderstorm WarningOHXWayne29 min
Aug 20, 2:26 PM CDTFlash Flood WarningOHXWayne2 hr
Aug 20, 2:30 PM CDTSevere Thunderstorm WarningOHXWayne30 min
Aug 20, 3:46 PM CDTSevere Thunderstorm WarningOHXMarshall, Maury44 min
Aug 20, 4:32 PM CDTSevere Thunderstorm WarningOHXMarshall, Maury28 min
Aug 20, 5:21 PM CDTSevere Thunderstorm WarningOHXGiles39 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2002Every severe thunderstorm warning in 2002

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.