Alert archive / Ohio / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 13, NWS Wilmington, OH

March 27, 1991Crawford County, Richland County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Mar 27, 1991, 11:20 PM EST for Crawford County, Richland County, Ohio. It was in force for 55 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 27, 1991, 11:20 PM EST (04:20 UTC)
Expired
Mar 28, 1991, 12:15 AM EST
In force
55 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Crawford County, OH, Richland County, OH

What was reported inside it

TimeReportWhereRemark
Mar 27, 11:30 PM ESTThunderstorm Wind 0Richland, OH

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 4.3 hours before the alert went out and 161 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 1991-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 448 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, Dayton/James M C, OH at 00:00Z on 1991-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 536 square meters per square second.19395878Sfc1 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
448 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
536 m²/s²
0-3 km storm-relative helicity
687 m²/s²
Significant tornado parameter
1.9
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 Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 8:45 PM ESTSevere Thunderstorm WarningILNMercer, Van Wert60 min
Mar 27, 8:59 PM ESTSevere Thunderstorm WarningILNAllen61 min
Mar 27, 9:14 PM ESTSevere Thunderstorm WarningILNDarke61 min
Mar 27, 9:32 PM ESTSevere Thunderstorm WarningILNShelby58 min
Mar 27, 9:46 PM ESTSevere Thunderstorm WarningILNLogan59 min
Mar 27, 9:57 PM ESTSevere Thunderstorm WarningILNHardin63 min
Mar 27, 10:10 PM ESTSevere Thunderstorm WarningILNDarke50 min
Mar 27, 10:26 PM ESTSevere Thunderstorm WarningILNMiami, Shelby49 min
Mar 27, 10:29 PM ESTSevere Thunderstorm WarningILNPreble61 min

Nearby

Severe Thunderstorm Warnings in Ohio, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.