Alert archive / Tennessee / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 2, NWS Morristown, TN

March 22, 1991Scott County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Mar 22, 1991, 9:13 PM EST for Scott County, Tennessee. It was in force for 62 min.

The area

The counties it named.

The facts

Issued
Mar 22, 1991, 9:13 PM EST (02:13 UTC)
Expired
Mar 22, 1991, 10:15 PM EST
In force
62 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Scott County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.2 hours before the alert went out and 191 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 00:00Z on 1991-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 581 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 00:00Z on 1991-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 394 square meters per square second.1939587897Sfc1 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
581 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1260 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
394 m²/s²
0-3 km storm-relative helicity
582 m²/s²
Significant tornado parameter
1.7
Supercell composite
6.3

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
Mar 22, 9:13 PM ESTSevere Thunderstorm WarningMRXCumberland, Fentress, Morgan62 min
Mar 22, 11:17 PM ESTSevere Thunderstorm WarningMRXCumberland, Morgan58 min
Mar 22, 11:26 PM ESTSevere Thunderstorm WarningMRXCampbell, Scott64 min
Mar 23, 12:19 AM ESTSevere Thunderstorm WarningMRXCumberland, Morgan, Roane41 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1991Every severe thunderstorm warning in 1991

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.