Alert archive / Tennessee / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 162, NWS Nashville, TN

July 21, 1996Montgomery County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 21, 1996, 8:24 PM CDT for Montgomery County, Tennessee. It was in force for 51 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 21, 1996, 8:24 PM CDT (01:24 UTC)
Expired: Jul 21, 1996, 9:15 PM CDT
In force: 51 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Montgomery County, TN

What was reported inside it

Time	Report	Where	Remark
Jul 21, 8:33 PM CDT	Thunderstorm Wind 50	Clarksville, TN

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 00:00Z, 1.4 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: 1165 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1570 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 21, 8:02 PM CDT, 22 minutes earlier.

Area forecast discussion, Jul 21, 8:02 PM CDT, 22 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
802 PM SUN JUL 21 1996

TSTMS LATE AFTN AND EVE RESULTED FM GUD INSTABILITY...ALG WITH UPR LVL
DIV/LO LVL CONV...A 500 MB S/WV MOVG ESE ACRS OH VLY...AND HI 850 MB
DEW PTS IN PARTICULAR. BOW ECHOES WERE THE CAUSE OF DAMAGE IN THE
NASHVILLE AREA.

EXPECT LESS ACTIVITY LTR TNGT AS HEATG AND UPR LVL S/WV BGNS MOVG TO E
OF AREA. BUT APCH OF SFC TROF FM W/NW...WITH LO LVL CYC FLO AND CONTD
THETA RDG AXIS AT BOTH 1000 AND 850 MB LVLS ACRS AREA OVRNGT WL BE ENUF
TO CONT CHC OF TSTMS ALL NGT.
STEIGERWALDT

In the hours before

Special weather statement, Jul 21, 2:57 PM CDT, 5 hours 27 minutes before

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Local storm report, Jul 21, 3:17 PM CDT, 5 hours 7 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 7:00 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	45 min
Jul 21, 7:07 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	53 min
Jul 21, 7:09 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale	51 min
Jul 21, 8:00 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Smith	45 min
Jul 21, 8:50 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	40 min
Jul 21, 9:13 PM CDT	Severe Thunderstorm Warning	OHX	Bedford	47 min
Jul 21, 9:30 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	60 min
Jul 21, 9:46 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	59 min
Jul 21, 9:51 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	69 min
Jul 21, 10:09 PM CDT	Flash Flood Warning	OHX	Davidson, Sumner, Wilson	3 hr
Jul 22, 12:14 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury	46 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1996 Every severe thunderstorm warning in 1996

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.