Alert archive / Ohio / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 99, NWS Charleston, WV

August 28, 1990Marion County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Aug 28, 1990, 8:59 PM EDT for Marion County, Ohio. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1990, 8:59 PM EDT (00:59 UTC)
Expired
Aug 28, 1990, 9:45 PM EDT
In force
46 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Marion County, OH

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 1.0 hours before the alert went out and 117 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 1990-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1965 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 1990-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
1965 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1458 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.5
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCMH 290059
SVRCMH
OHC101-290145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
859 PM EDT TUE AUG 28 1990
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL OHIO
          ...MARION
 
AT 9PM EDT THE COLUMBUS WEATHER RADAR SHOWED A POSSIBLE SEVERE
THUNDERSTORM ENTERING NORTHWEST MARION COUNTY. THIS STORM WAS MOVING
TO THE SOUTHEAST AT 40 MPH AND WILL MOVE INTO THE CITY OF MARION BY
915 PM.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
RAMEY

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 9:28 PM EDTSevere Thunderstorm WarningRLXMadison47 min
Aug 28, 9:42 PM EDTSevere Thunderstorm WarningRLXFranklin48 min
Aug 28, 10:00 PM EDTSevere Thunderstorm WarningRLXFairfield, Pickaway45 min
Aug 28, 10:00 PM EDTSevere Thunderstorm WarningRLXLicking45 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1990Every severe thunderstorm warning in 1990

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.