Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 91, NWS Wilmington, OH

August 28, 1990Franklin County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 28, 1990, 9:12 PM EST for Franklin County, Indiana. It was in force for 48 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
Aug 28, 1990, 9:12 PM EST (02:12 UTC)
Expired
Aug 28, 1990, 10:00 PM EST
In force
48 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Franklin County, IN

The radar

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

What was reported inside it

TimeReportWhereRemark
Aug 28, 9:22 PM ESTHail 1Franklin, IN

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, 2.2 hours before the alert went out and 91 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 KCLE 290212
SVRCVG
INC047-290300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COVINGTON KY
1012 PM EDT TUE AUG 28 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1100 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTY

   IN THE SOUTHEAST PART OF INDIANA
      FRANKLIN

AT 1010 PM EDT WEATHER SERVICE RADAR SHOWED A POSSIBLE SEVERE
THUNDERSTORM IN SOUTHERN FAYETTE COUNTY IN SOUTHEAST INDIANA.
THE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MPH AND WILL MOVE
ACROSS NORTHEAST FRANKLIN COUNTY.

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

 WHITAKER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 28, 7:30 PM EST, 1 hour 42 minutes before
OHZ006-007-009-011-280230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  COLUMBUS OH
830 PM EDT TUE AUG 28 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE NORTHERN
TWO THIRDS OF OHIO UNTIL 10 PM EDT.

AT 825 PM THE COLUMBUS WEATHER RADAR SHOWED A LARGE AREA OF SHOWERS
AND THUNDERSTORMS OVER NORTHERN AND WEST CENTRAL OHIO. THE AREA OF
SHOWERS AND THUNDERSTORMS WAS MOVING EAST TO SOUTHEAST AROUND 35 MPH

THUNDERSTORMS ARE EXPECTED TO REACH WESTERN MARION AND UNION COUNTIES
AROUND 9 PM. THESE THUNDERSTORMS MAY PRODUCE STRONG GUSTY WINDS AND
BRIEF HEAVY RAINS.

PEOPLE IN CENTRAL OHIO SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS.

LVW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 10:17 PM ESTSevere Thunderstorm WarningILNFranklin43 min
Aug 28, 10:31 PM ESTSevere Thunderstorm WarningILNDearborn, Ripley59 min

Nearby

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