Alert archive / Ohio / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 83, NWS Wilmington, OH

August 28, 1990Allen County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 28, 1990, 7:34 PM EDT for Allen County, Ohio. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Aug 28, 1990, 7:34 PM EDT (23:34 UTC)
Expired
Aug 28, 1990, 8:30 PM EDT
In force
56 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Allen 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 12:00Z, 11.6 hours before the alert went out and 97 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 12:00Z on 1990-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1114 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 12:00Z on 1990-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.1939587897117Sfc1 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
1114 J/kg
Mixed-layer CIN
-266 J/kg
Mixed-layer LCL
1466 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDAY 282334
SVRDAY
OHC003-290030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE DAYTON OH
734 PM EDT TUE AUG 28 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE STATE OF OHIO
      ALLEN

AT 730 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE
SEVERE THUNDERSTORM IN WESTERN ALLEN COUNTY OHIO.  THE THUNDERSTORM
WAS MOVING SOUTHEAST AT 30 MILS AN HOUR AND WILL PASS ACROSS PARTS
OF THE CITY OF LIMA AROUND 745 TO 800 PM EDT.

IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

IF THREATENING WEATHER APPROACHES... YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY AND ASK THE NEAREST LAW ENFORCEMENT AGENCrY TO RELAY
YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE
OFFICE.

 LINDSEY

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 28, 7:47 PM EDTSevere Thunderstorm WarningILNAuglaize58 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.