Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 332, NWS Nashville, TN

June 20, 1998Putnam County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jun 20, 1998, 1:10 PM CDT for Putnam County, Tennessee. It was in force for 50 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 20, 1998, 1:10 PM CDT (18:10 UTC)
Expired: Jun 20, 1998, 2:00 PM CDT
In force: 50 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Putnam County, TN

The radar

The Nashville radar (KOHX), 97 km from the middle of the area, began a volume at 18:11 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.2 hours before the alert went out and 99 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: 801 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 84 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.

824 
WUUS1 KBNA 201812 RRA
SVRBNA
TNC141-201900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
110 PM CDT SAT JUN 20 1998

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

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

* UNTIL 200 PM CDT

* AT 109 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 11 MILES SOUTHEAST OF CARTHAGE OR 5 MILES
  SOUTHWEST OF GENTRY MOVING EAST AT 15 MPH.

* SEVERE THUNDERSTORM WILL BE NEAR...
  GENTRY AT 115 PM CDT
  HICKEY AT 120 PM CDT
  BOMA  AT 125 PM CDT
  BAXTER AT 135 PM CDT
  BLOOMINGTON SPRINGS AT 140 PM CDT
  BURGESS FALLS STATE PARK AT 145 PM CDT

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

08

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 20, 9:12 AM CDT, 3 hours 58 minutes earlier.

Area forecast discussion, Jun 20, 9:12 AM CDT, 3 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
912 AM CDT SAT JUN 20 1998

MRNG BNA SOUNDING MODERATELY UNSTABLE...ALTHO MID AND UPR LVLS REMAIN
DRY. AREA OF PCPN IN W TN SLO TO MV E. W/ A LTL SFC HEATING AND CAP
EROSION BLV THIS WL CHANGE.

CURNT ZFP LOOKS OK...BUT WUD CHANGE PARTLY CLOUDY IN PD 1 FCST TO
PARTLY SUNNY AND REMOVE MENTION OF DENSE FOG. TEMPS AND POPS ARE FINE.

08

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 12:40 PM CDT	Severe Thunderstorm Warning	OHX	Smith	50 min
Jun 20, 12:59 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb	31 min
Jun 20, 1:18 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	47 min
Jun 20, 1:32 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Wilson	63 min
Jun 20, 1:35 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	50 min
Jun 20, 2:18 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Warren	52 min
Jun 20, 2:42 PM CDT	Severe Thunderstorm Warning	OHX	Lincoln	48 min
Jun 20, 4:11 PM CDT	Severe Thunderstorm Warning	OHX	Maury	34 min
Jun 20, 4:52 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury	48 min
Jun 20, 5:41 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury	49 min
Jun 20, 5:50 PM CDT	Flash Flood Warning	OHX	Marshall, Maury	2 hr
Jun 20, 6:03 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	47 min
Jun 20, 6:18 PM CDT	Tornado Warning	OHX	Robertson	37 min
Jun 20, 6:30 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	50 min
Jun 20, 6:42 PM CDT	Severe Thunderstorm Warning	OHX	Sumner, Wilson	48 min
Jun 20, 6:54 PM CDT	Tornado Warning	OHX	Davidson	36 min
Jun 20, 6:58 PM CDT	Tornado Warning	OHX	Wilson	37 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; radar from the NEXRAD Level II archive.