Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 103, NWS Nashville, TN

March 28, 1997Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 28, 1997, 8:11 PM CST for Williamson 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: Mar 28, 1997, 8:11 PM CST (02:11 UTC)
Expired: Mar 28, 1997, 9:00 PM CST
In force: 49 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Williamson County, TN

The radar

The Nashville radar (KOHX), 50 km from the middle of the area, began a volume at 02:15 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 28, 5:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.2 hours before the alert went out and 38 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: 1331 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1544 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 390 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 11.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBNA 290214 RRA
SVRBNA
TNC187-290300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
811 PM CST FRI MAR 28 1997
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN MIDDLE TENNESSEE
 
   ...WILLIAMSON COUNTY
 
AT 810 PM DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM
APPROACHING FAIRVIEW. THE THUNDERSTORM WAS MOVING NORTHEAST AT
45 MPH. THR LEIPERS FORK AREA AND FRANKLIN IS IN THE PATH OF THIS STORM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLHE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
END/ORCHANIAN

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 Mar 28, 1:04 PM CST, 7 hours 7 minutes earlier.

Area forecast discussion, Mar 28, 1:04 PM CST, 7 hours 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
100 PM CST FRI MAR 28 1997

COLD FRONT PUSHING THROUGH ARKANSAS AT THIS TIME AND SO FAR UNEVENTFUL.
AIR MASS ACROSS MIDDLE TN DESTABILIZING RATHER QUICKLY NOW THAT THE
SUN HAS COME OUT.  EVEN NOTED PRESSURE FALLING RAPIDLY AT BNA LAST OB.
ADAP SHOWING IMPRESSIVE LI`S RUNNING NORTH OUT OF MISSISSIPPI ACROSS
WESTERN AREAS.

UNMODIFIED NOON-TIME BNA SOUNDING SHOWING WEAK CAP IN PLACE JUST BELOW
850 MBS WITH PLENTY OF DRY AIR ALOFT. WET-BULB ZERO WENT FROM 8300 FT
AT 12Z DOWN TO 6000 FT AT 18Z...INDICATIVE OF THE DRIER AIR BEING
ADVECTED INTO OUR AREA.  ON THE OTHER HAND BRN (BULK RICHARDSON NUMBER)
OFF 18Z SOUNDING WAS AT 5 WHILE THE 0-3 KM STORM RELATIVE HELICITY WAS AT
63 M2/S2.

EVEN THOUGH IT MAY APPEAR TOO MUCH DRY AIR IS IN PLACE ALONG WITH WEAK CAP
I AM IMPRESSED WITH JET MAX DIVING THIS AFTERNOON ALONG MISSOURI/ARKANSAS
BORDER. BELIEVE IF DYNAMICS ARE STRONG ENOUGH MOFISTURE WILL FIND ITS WAY
INTO SYSTEM.  SO WOULD NOT RULE THE POSSIBLITY OF AT LEAST ISOLATED SEVERE
TSTMS IN MIDDLE TN LATE AFTERNOON/EVENING.

BNA 52/68/45/65 35    4/0/0/0

BOYD
01

In the hours before

Local storm report, Mar 28, 7:23 PM CST, 48 minutes before

PRELIMINARY LOCAL STORM REPORT....CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
0724 PM CST FRI MAR 28 1997

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

0716 PM    PARSONS                   TN   1.00 INCH HAIL
03/28/97   DECATUR                        SKYWARN SPOTTER REPORTED
                                          QUARTER SIZE HAIL.

0720 PM    2 N DICKSON               TN   1.50 INLCH HAIL
03/28/97   DICKSON                        REPORT BY SKYWARN SPOTTER

CORRECTED FOR LOCATION OF 1 INCH HAIL.

END/ORCHANIAN

Local storm report, Mar 28, 7:24 PM CST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT....CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
0724 PM CST FRI MAR 28 1997

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

0716 PM    PARSONS                   TN   1.00 INCH HAIL
03/28/97   DECATUR                        SKYWARN SPOTTER REPORTED
                                          QUARTER SIZE HAIL.

0720 PM    2 N DICKSON               TN   1.50 INCH HAIL
03/28/97   DICKSON                        REPORT BY SKYWARN SPOTTER

CORRECTED FOR LOCATION OF 1 INCH HAIL.

END/ORCHANIAN

Local storm report, Mar 28, 7:40 PM CST, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0740 PM CST FRI MAR 28 1997

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

0735 PM    CENTERVILLE               TN   0.75 INCH HAIL
03/28/97   HICKMAN                        DIME SIZE HAIL REPORTED
                                          BY AMATEUR RADIO OPERATOR
                                          IN WESTERN PART OF CENTERVILLE

0736 PM    CHAPMANSBORO              TN   0.75 INCH HAIL
03/28/97   CHEATHAM                       REPORT BY SKYWARN SPOTTER

END/ORCHANIAN

Local storm report, Mar 28, 7:41 PM CST, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0740 PM CST FRI MAR 28 1997

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

0735 PM    CENTERVILLE               TN   0.75 INCH HAIL
03/28/97   HICKMAN                        DIME SIZE HAIL REPORTED
                                          BY AMATEUR RADIO OPERATOR
                                          IN WESTERN PART OF CENTERVILLE

0736 PM    CHAPMANSBORO              TN   0.75 INCH HAIL
03/28/97   CHEATHAM                       REPORT BY SKYWARN SPOTTER

END/ORCHANIAN

Local storm report, Mar 28, 7:59 PM CST, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0759 PM CST FRI MAR 28 1997

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

0755 PM    NASHVILLE                 TN   0.88 INCH HAIL
03/28/97   DAVIDSON                       NICKEL SIZE HAIL REPORTED
                                          AT OPRYLAND PARK BY
                                          BY AMATEUR RADIO OPERATOR

0800 PM    GOODLETTSVILLE            TN   0.88 INCH HAIL
03/28/97   DAVIDSON                       E.M.A. OFFICIAL REPORTED
                                          NICKEL SIZE HAIL

804 PM     MADISON                   TN   1.75 INCH HAIL
03/28/97   DAVIDSON                       GOLF BALL SIZE HAIL REPORTED
                                          BY SPOTTER.
END/ORCHANIAN

Local storm report, Mar 28, 8:08 PM CST, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0759 PM CST FRI MAR 28 1997

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

0755 PM    NASHVILLE                 TN   0.88 INCH HAIL
03/28/97   DAVIDSON                       NICKEL SIZE HAIL REPORTED
                                          AT OPRYLAND PARK BY
                                          BY AMATEUR RADIO OPERATOR

0800 PM    GOODLETTSVILLE            TN   0.88 INCH HAIL
03/28/97   DAVIDSON                       E.M.A. OFFICIAL REPORTED
                                          NICKEL SIZE HAIL

804 PM     MADISON                   TN   1.75 INCH HAIL
03/28/97   DAVIDSON                       GOLF BALL SIZE HAIL REPORTED
                                          BY SPOTTER.
END/ORCHANIAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 6:00 PM CST	Tornado Warning	OHX	Robertson	45 min
Mar 28, 6:16 PM CST	Tornado Warning	OHX	Sumner	44 min
Mar 28, 6:19 PM CST	Severe Thunderstorm Warning	OHX	Benton	41 min
Mar 28, 6:22 PM CST	Tornado Warning	OHX	Davidson, Wilson	38 min
Mar 28, 6:31 PM CST	Severe Thunderstorm Warning	OHX	Houston, Humphreys	44 min
Mar 28, 6:34 PM CST	Severe Thunderstorm Warning	OHX	Decatur	56 min
Mar 28, 6:51 PM CST	Severe Thunderstorm Warning	OHX	Perry	39 min
Mar 28, 6:55 PM CST	Tornado Warning	OHX	Dickson, Humphreys	50 min
Mar 28, 7:01 PM CST	Tornado Warning	OHX	Benton, Decatur	44 min
Mar 28, 7:17 PM CST	Severe Thunderstorm Warning	OHX	Lewis	43 min
Mar 28, 7:24 PM CST	Severe Thunderstorm Warning	OHX	Cheatham	51 min
Mar 28, 7:31 PM CST	Severe Thunderstorm Warning	OHX	Hickman, Maury	44 min
Mar 28, 7:43 PM CST	Tornado Warning	OHX	Cheatham, Davidson	47 min
Mar 28, 7:54 PM CST	Tornado Warning	OHX	Wayne	51 min
Mar 28, 8:01 PM CST	Severe Thunderstorm Warning	OHX	Sumner, Wilson	44 min
Mar 28, 8:25 PM CST	Severe Thunderstorm Warning	OHX	Macon, Trousdale	50 min
Mar 28, 8:31 PM CST	Severe Thunderstorm Warning	OHX	Rutherford	44 min
Mar 28, 8:41 PM CST	Severe Thunderstorm Warning	OHX	Lawrence	49 min
Mar 28, 8:54 PM CST	Severe Thunderstorm Warning	OHX	Smith	36 min
Mar 28, 9:02 PM CST	Severe Thunderstorm Warning	OHX	Giles, Marshall	43 min
Mar 28, 9:06 PM CST	Tornado Warning	OHX	Smith	54 min
Mar 28, 9:12 PM CST	Tornado Warning	OHX	Jackson	48 min
Mar 28, 9:23 PM CST	Severe Thunderstorm Warning	OHX	Rutherford, Wilson	37 min
Mar 28, 9:26 PM CST	Tornado Warning	OHX	DeKalb, Wilson	49 min
Mar 28, 9:35 PM CST	Tornado Warning	OHX	Giles, Lawrence	40 min
Mar 28, 9:40 PM CST	Tornado Warning	OHX	Overton	50 min
Mar 28, 9:44 PM CST	Severe Thunderstorm Warning	OHX	Sumner	31 min
Mar 28, 9:48 PM CST	Severe Thunderstorm Warning	OHX	Bedford	27 min
Mar 28, 10:05 PM CST	Severe Thunderstorm Warning	OHX	Putnam	40 min
Mar 28, 10:10 PM CST	Tornado Warning	OHX	Putnam	50 min
Mar 28, 10:25 PM CST	Tornado Warning	OHX	Coffee, Franklin, Lincoln	50 min
Mar 28, 10:37 PM CST	Tornado Warning	OHX	Grundy	38 min
Mar 28, 10:55 PM CST	Tornado Warning	OHX	Sequatchie	65 min
Mar 28, 11:01 PM CST	Severe Thunderstorm Warning	OHX	Marion	44 min
Mar 28, 11:16 PM CST	Tornado Warning	OHX	Bledsoe	44 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; radar from the NEXRAD Level II archive.