Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 22, NWS Morristown, TN

June 7, 1990Loudon County, Monroe County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 7, 1990, 12:54 PM EDT for Loudon County, Monroe County, Tennessee. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1990, 12:54 PM EDT (16:54 UTC)
Expired
Jun 7, 1990, 2:00 PM EDT
In force
66 min
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Loudon County, TN, Monroe County, TN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 4.9 hours before the alert went out and 203 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, Athens Municipal, GA at 12:00Z on 1990-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1343 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, Athens Municipal, GA at 12:00Z on 1990-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1343 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1043 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 8:06 PM EDTSevere Thunderstorm WarningMRXMorgan54 min
Jun 6, 8:23 PM EDTSevere Thunderstorm WarningMRXCampbell52 min
Jun 6, 8:38 PM EDTSevere Thunderstorm WarningMRXClaiborne, Union67 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1990Every severe thunderstorm warning in 1990

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.