Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 55, NWS Nashville, TN

February 27, 1997Montgomery County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Feb 27, 1997, 12:36 AM CST for Montgomery County, Tennessee. It was in force for 39 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: Feb 27, 1997, 12:36 AM CST (06:36 UTC)
Expired: Feb 27, 1997, 1:15 AM CST
In force: 39 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Montgomery 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
Feb 27, 12:15 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.6 hours before the alert went out and 81 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 589 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 482 m²/s²
0-3 km storm-relative helicity: 523 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.

510 
WUUS1 KBNA 270641 RRA
SVRBNA
TNC125-270715-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION TO EXPIRATION TIME
NATIONAL WEATHER SERVICE NASHVILLE TN
1236 AM CST THU FEB 27 1997

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN MIDDLE TENNESSEE

   ...MONTGOMERY COUNTY

AT 1234 AM...WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM
MOVING INTO THE COUNTY 15 MILES SOUTH SOUTHWEST OF CLARKSVILLE.
THIS STORM WAS MOVING NORTHEAST NEAR 45 MILES AN HOUR AND WILL
MOVE NEAR OR THROUGH THE CITY OF CLARKSVILLE.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 Feb 26, 7:16 PM CST, 5 hours 20 minutes earlier.

Area forecast discussion, Feb 26, 7:16 PM CST, 5 hours 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
715 PM CST WED FEB 26 1997

SQ LN STILL WELL W OF MS RVR THIS EVENG IN VCNTY OF CDFNT.  TEMPS
ACRS FA CURRNTLY ARND 60 DEGREES.   XPCT CDFNT BNA VCNTY ARND 12Z
WITH SQ LN ACRS ~05Z-13Z.  SVR THREAT STILL PSBL BUT BLV FOCUS WL
SHIFT MORE N WITH BST INSTBLTY AND DEEPR MSTR. CUD LV ZNS WRDD AS
IS BUT BLV TEMP FCST LTL LO ACRS MST OF AREA..OTRW NO CHGS NEEDD.

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 26, 11:54 PM CST	Severe Thunderstorm Warning	OHX	Decatur	51 min
Feb 27, 12:06 AM CST	Severe Thunderstorm Warning	OHX	Perry	54 min
Feb 27, 12:10 AM CST	Severe Thunderstorm Warning	OHX	Humphreys	50 min
Feb 27, 12:25 AM CST	Severe Thunderstorm Warning	OHX	Dickson, Houston	50 min
Feb 27, 12:34 AM CST	Severe Thunderstorm Warning	OHX	Montgomery	26 min
Feb 27, 12:51 AM CST	Severe Thunderstorm Warning	OHX	Dickson	39 min
Feb 27, 2:15 AM CST	Severe Thunderstorm Warning	OHX	Trousdale, Wilson	45 min
Feb 27, 4:49 AM CST	Severe Thunderstorm Warning	OHX	Grundy, Sequatchie	26 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1997 Every severe thunderstorm warning in 1997

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.