Alert archive / Tennessee / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 221, NWS Morristown, TN

September 16, 1996Hamilton County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Sep 16, 1996, 5:40 PM EDT for Hamilton County, Tennessee. It was in force for 65 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
Sep 16, 1996, 5:40 PM EDT (21:40 UTC)
Expired
Sep 16, 1996, 6:45 PM EDT
In force
65 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Hamilton County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 167 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 1996-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 1996-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 327 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
351 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
327 m²/s²
0-3 km storm-relative helicity
388 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

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 Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 16, 3:21 PM EDT, 2 hours 19 minutes earlier.

Area forecast discussion, Sep 16, 3:21 PM EDT, 2 hours 19 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
315 PM EDT MON SEP 16 1996

S/W TROF AND ASSOC STRONG TSRA/SHRA WL SHIFT E OF THE FA BY TUE MORNING
BUT UNTIL THEN...WE WILL HAVE TO KEEP RATHER HIGH POPS GOING FOR TONITE
AS BANDS OF TSRA CONT RAPIDLY EWD THRU MD TN.  CURRENT WIDESPREAD RAIN
OVR E TN IS MOVG SO FAST IT WL BE ALMOST OUT OF THE EXTREME NE CORNER
BY FORECAST VALID TIME THIS EVE BUT THE 1ST WAVE OF TSRA WL ENTER THE
CUMBERLAND PLATEAU AROUND 21Z.  STRONGEST STORMS AGAIN EXPECTED OVR THE
SRN VLY COUNTIES.  WOULD STAY CLOSE TO FAN TEMPS TONITE.

CD FNT DROPS INTO THE NRN PLATEAU AND NRN VLY ZONES TWD DAYBREAK BRINGING
AN END TO THE RAIN ARND OR JUST BEFORE 12Z IN THESE AREAS.  FNT CONTINUES
S ACRS REMAINDER OF E TN DRNG THE MORNING ALLOWING THE AREA TO DRY OUT.
HOWEVER...LOW CLOUDS WL REMAIN THROUGH MUCH OF THE DAY ACRS E TN AND
BELIEVE NGM HAS A GOOD HANDLE ON THIS.  WITH LOW CLOUDS IN PLACE AND
CAA BEHIND FNT...WOULD STAY CLOSER TO FAN TEMPS EXCEPT 80 AT CHA LOOKS
TOO WARM.
>
DRY AIR GRADUALLY FILTERS INTO E TN TUE NITE ALLOWING SOME CLEARING
HOWEVER...NLY FLOW WL KEEP TEMPS FM DROPPING QUITE AS LOW AS SOME OF
THE FAN TEMPS SUGGEST SO WOULD TAKE A COMPROMISE HERE.  SUNSHINE
RETURNS ON WED HOWEVER...COOL N-NELY FLOW WL KEEP TEMPS CLOSER TO
FAN NUMBERS.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 16, 7:27 PM EDTSevere Thunderstorm WarningMRXMonroe33 min
Sep 16, 7:44 PM EDTTornado WarningMRXMonroe31 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1996Every 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; the sounding from the Mesonet's radiosonde archive.