Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 321, NWS Nashville, TN

June 14, 1998Cheatham County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 14, 1998, 9:31 PM CDT for Cheatham County, Tennessee. It was in force for 49 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: Jun 14, 1998, 9:31 PM CDT (02:31 UTC)
Expired: Jun 14, 1998, 10:20 PM CDT
In force: 49 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Cheatham County, TN

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 14, 4:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.5 hours before the alert went out and 46 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: 3344 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 936 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 451 m²/s²
0-3 km storm-relative helicity: 509 m²/s²
Significant tornado parameter: 11.0
Supercell composite: 67.6

Open this sounding in Storm Lab

The text

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

548 
WUUS1 KBNA 150232 RRA
SVRBNA
TNC021-150320-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
931 PM CDT SUN JUN 14 1998

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHEATHAM COUNTY IN MIDDLE TENNESSEE

* UNTIL 1020 PM CDT

* AT 927 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES NORTHWEST OF KINGSTON SPRINGS...
  MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NORTH OF KINGSTON SPRINGS AT 950 PM CDT
  NARROW OF THE HARPETH PARK AT 10 PM CDT

THIS STORM HAS A HISTORY OF DAMAGING WIND. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

WSS/DM

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 Jun 14, 7:35 PM CDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jun 14, 7:35 PM CDT, 1 hour 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
735 PM CDT SUN JUN 14 1998

00Z BNA SNDG REVEALS VERY UNSTBL AMS OVR RGN. WHEN INPUTING OBSERVED
STORM MOTION...S.R. HELICITY INCREASES TO ABT 450 M2/S2. NEEDLESS TO
SAY SCT SUPERCELLS OVR WRN TN/WRN KY/NE AR SHOULD CONT TO MOV TWD
MOIST UNSTBL AMS OVR MID TN. APPRS HIGHEST THREAT FOR TORNADIC TSTMS WL
BE OVR NW MID TN INCLUDING CITIES OF DOVER...WAVERLY...CAMDEN AND
CLARKSVILLE.

WHILE NOT EVIDENT ATTM...COULD SEE CELLS MERGE INTO A LINE TWDS 05Z AND
BRING HEAVY RAIN/DAMAGING WIND THREAT TO ERN MID TN. SEE LTL REASON TO
ALTER CURRENT FCST FOR OVRNIGHT HRS XPCT MAYBE TO DECREASE POP AFT 05Z
FOR WRN MID COUNTIES.
09

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 7:39 PM CDT	Severe Thunderstorm Warning	OHX	Benton	61 min
Jun 14, 8:36 PM CDT	Severe Thunderstorm Warning	OHX	Humphreys	49 min
Jun 14, 8:46 PM CDT	Tornado Warning	OHX	Benton	49 min
Jun 14, 8:56 PM CDT	Tornado Warning	OHX	Dickson, Humphreys	34 min
Jun 14, 9:07 PM CDT	Tornado Warning	OHX	Humphreys	48 min
Jun 14, 9:30 PM CDT	Flash Flood Warning	OHX	Benton, Dickson, Houston, Humphreys	3 hr
Jun 14, 9:38 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Humphreys	47 min
Jun 14, 9:47 PM CDT	Tornado Warning	OHX	Cheatham	33 min
Jun 14, 10:01 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	64 min
Jun 14, 10:11 PM CDT	Tornado Warning	OHX	Dickson, Hickman	64 min
Jun 14, 10:15 PM CDT	Tornado Warning	OHX	Davidson	50 min
Jun 14, 10:27 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	63 min
Jun 14, 10:29 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	66 min
Jun 14, 10:55 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale	50 min
Jun 14, 11:17 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	48 min
Jun 14, 11:33 PM CDT	Tornado Warning	OHX	Putnam	62 min
Jun 14, 11:52 PM CDT	Flash Flood Warning	OHX	Williamson	2 hr
Jun 15, 12:13 AM CDT	Severe Thunderstorm Warning	OHX	White	62 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1998 Every severe thunderstorm warning 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.