Alert archive / Virginia / Flash Flood Warnings in 1991

Flash Flood Warning 11, NWS Morristown, TN

December 1, 1991Wise County, Virginia

NWS Morristown, TN issued this flash flood warning at Dec 1, 1991, 2:58 PM EST for Wise County, Virginia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Dec 1, 1991, 2:58 PM EST (19:58 UTC)
Expired
Dec 1, 1991, 6:00 PM EST
In force
3 hr
Issued by
NWS Morristown, TN
Area
Whole counties

County Wise County, VA

The nearest sounding before it

Huntington/Tri S, WV (KHTS), launched 12:00Z, 8.0 hours before the alert went out and 155 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, Huntington/Tri S, WV at 12:00Z on 1991-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Huntington/Tri S, WV at 12:00Z on 1991-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 294 square meters per square second.1939587897Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
524 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
294 m²/s²
0-3 km storm-relative helicity
333 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
Dec 1, 3:36 PM ESTFlash Flood WarningMRXBuchanan3 hr
Dec 1, 4:08 PM ESTFlash Flood WarningMRXScott3 hr

Nearby

Flash Flood Warnings in Virginia, 1991Every flash flood 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.