Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 30, NWS Charleston, WV

April 27, 1994Madison County, Union County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Apr 27, 1994, 4:42 AM EDT for Madison County, Union County, Ohio. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Apr 27, 1994, 4:42 AM EDT (08:42 UTC)
Expired
Apr 27, 1994, 5:45 AM EDT
In force
63 min
Issued by
NWS Charleston, WV
Area
Whole counties

Counties Madison County, OH, Union County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 8.7 hours before the alert went out and 73 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, Dayton/James M C, OH at 00:00Z on 1994-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 981 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, Dayton/James M C, OH at 00:00Z on 1994-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
981 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1633 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.0

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 Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 27, 11:28 AM EDTSevere Thunderstorm WarningRLXRaleigh, Summers47 min
Apr 27, 11:52 AM EDTSevere Thunderstorm WarningRLXMercer53 min
Apr 27, 4:42 AM EDTSevere Thunderstorm WarningRLXFayette63 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1994Every severe thunderstorm warning in 1994

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.