Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 359, NWS Nashville, TN

July 4, 1998Moore County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 4, 1998, 4:14 PM CDT for Moore County, Tennessee. It was in force for 36 min. 1 report 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: Jul 4, 1998, 4:14 PM CDT (21:14 UTC)
Expired: Jul 4, 1998, 4:50 PM CDT
In force: 36 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Moore County, TN

What was reported inside it

Time	Report	Where	Remark
Jul 4, 4:30 PM CDT	Thunderstorm Wind 50	Countywide, TN	Trees and power lines were down across the county.

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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.2 hours before the alert went out and 96 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: 1943 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

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

758 
WUUS1 KBNA 042117 RRA
SVRBNA
TNC127-042150-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
414 PM CDT SAT JUL 4 1998

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 450 PM CDT

* AT 413 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 7 MILES WEST OF LYNCHBURG MOVING SOUTHEAST
  AT 15 MPH.

* SEVERE THUNDERSTORM WILL BE NEAR...
  LYNCHBURG AT 425 PM CDT
  LOIS  AT 435 PM CDT

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

SW/MR

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 Jul 4, 9:20 AM CDT, 6 hours 54 minutes earlier.

Area forecast discussion, Jul 4, 9:20 AM CDT, 6 hours 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
920 AM CDT SAT JUL 4 1998

SCATTERED TSRA ALREADY POPPING UP OVER CWA AT THIS EARLY HOUR.  STORMS
MOVING OUT OF MO ARE DISSIPATING BUT WITH MODERATE INSTABILITY IN PLACE
AND WITH VARIOUS WEAK SYNOPTIC AND SFC BOUNDARIES LAYING ARND...WOULD
LEAVE POPS AS IS. TEMP FCST LOOKS OK.  12

In the hours before

Local storm report, Jul 4, 2:26 PM CDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
226 PM CDT SAT JUL 04 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0215 PM    ELMWOOD                   TN   .88 INCH HAIL
07/04/98   SMITH                          NICKEL SIZED HAIL REPORTED
                                          BY SKYWARN SPOTTER

Local storm report, Jul 4, 4:06 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
406 PM CDT SAT JUL 04 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0240 PM                              TN   WIND DAMAGE
07/04/98   RUTHERFORD                     ROOF BLOWN OFF OF A TEXACO
                                          SERVICE STATION IN
                                          SOUTHERN PART OF THE
                                          COUNTY. REPORTED BY LOCAL
                                          LAW ENFORCEMENT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 2:04 PM CDT	Severe Thunderstorm Warning	OHX	Smith	51 min
Jul 4, 2:09 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	51 min
Jul 4, 2:53 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	47 min
Jul 4, 3:46 PM CDT	Severe Thunderstorm Warning	OHX	Franklin, Grundy	49 min
Jul 4, 3:56 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Lincoln	49 min
Jul 4, 4:24 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	51 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.