Alert archive / West Virginia / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 39, NWS Charleston, WV

May 6, 1991Doddridge County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at May 6, 1991, 12:58 PM EDT for Doddridge County, West Virginia. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
May 6, 1991, 12:58 PM EDT (16:58 UTC)
Expired
May 6, 1991, 1:45 PM EDT
In force
47 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Doddridge County, WV

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.0 hours before the alert went out and 137 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, Pittsburgh, PA at 12:00Z on 1991-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 250 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, Pittsburgh, PA at 12:00Z on 1991-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
250 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
604 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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 Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 6, 11:33 AM EDTSevere Thunderstorm WarningRLXKanawha, Roane42 min
May 6, 12:06 PM EDTSevere Thunderstorm WarningRLXKanawha54 min
May 6, 12:47 PM EDTSevere Thunderstorm WarningRLXBraxton58 min
May 6, 12:59 PM EDTSevere Thunderstorm WarningRLXHarrison61 min
May 6, 1:49 PM EDTSevere Thunderstorm WarningRLXPreston56 min
May 6, 2:47 PM EDTSevere Thunderstorm WarningRLXHampshire, Hardy58 min
May 6, 2:05 PM EDTSevere Thunderstorm WarningRLXGarrett55 min
May 6, 2:30 PM EDTSevere Thunderstorm WarningRLXAllegany60 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 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.