Alert archive / Tennessee / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 155, NWS Morristown, TN

June 26, 1995Sullivan County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 26, 1995, 9:20 PM EDT for Sullivan County, Tennessee. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 26, 1995, 9:20 PM EDT (01:20 UTC)
Expired
Jun 26, 1995, 10:15 PM EDT
In force
55 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Sullivan County, TN

The radar

The Knoxville radar (KMRX), 106 km from the middle of the area, began a volume at 01:20 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.3 hours before the alert went out and 221 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, Greensboro/Hi Pt, NC at 00:00Z on 1995-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2693 joules per kilogram.LCLEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 1995-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
2693 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8

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 Jun 26, 9:25 AM EDT, 11 hours 55 minutes earlier.

Area forecast discussion, Jun 26, 9:25 AM EDT, 11 hours 55 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
925 AM EDT MON JUN 26 1995

UPR LOW IS LOCATED OVR MO THIS MRNG WITH COLD POOL ALF BEGINNING TO
MOVE INTO W/MID TN. BNA SOUNDING INDICATED THAT THE AMS IS ALREADY
MODERATELY UNSTABLE THIS MRNG. MODIFYING SOUNDING WITH TEMPS IN THE
MID 80S/DEWPOINTS IN THE MID AND UPR 60S DEPICTS A FAIRLY UNSTABLE
ATMOSPHERE FOR THIS AFTN WITH CAPES OF 2700 J/KG AND LIFTED INDICES
OF -6 TO -8. THUS AMS WILL BE PRIMED FOR TRW DEVELOPMENT. SOUNDING
ALSO DEPICTED AN INVERTED V CHARACTERISTICS WITH WINDS ALOFT GENERALLY
PARRALLEL...SO DAMAGING WINDS WILL DEFINITELY BE A CONCERN THIS AFTN/
EVENG. ALSO AS 500 MB 50 KNOT JET MOVES ACRS THE GLF COAST STATES...
WINDS ALF WILL STRENGTHEN AND PLACE FA UNDER FAVORED LEFT FRONT QUAD.

WBZ IS PROGGD TO BE NR 11,500 FT BY AFTN WHICH IS IN THE UPPER IN OF
THE SPECTRUM FOR LARGE HAIL...BUT GIVEN EXPECTED STRONG UPDRAFTS
BELIEVE HAIL WILL ALSO BE A CONCERN.

PW AND K INDICES ARE FAIRLY HIGH AS WELL...BUT STORM MOTION OF 15 TO
20 KNOTS SHOULD LIMIT PCPN AMOUNTS.

WILL CHG FCST WORDING TO SCT FOR THIS AFTN AND INCLUDE SOME POSSIBLY
SVR AS WELL. TEMP LOOKS GUD.

DH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 9:51 PM EDTSevere Thunderstorm WarningMRXWashington69 min
Jun 26, 10:18 PM EDTSevere Thunderstorm WarningMRXRussell57 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1995Every severe thunderstorm warning in 1995

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.