Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 102, NWS Indianapolis, IN

July 16, 1990Saint Joseph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 16, 1990, 7:29 PM EST for Saint Joseph County, Indiana. It was in force for 31 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
Jul 16, 1990, 7:29 PM EST (00:29 UTC)
Expired
Jul 16, 1990, 8:00 PM EST
In force
31 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Saint Joseph 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
Jul 16, 7:50 PM ESTHail 1.75St. Joseph, 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, 0.5 hours before the alert went out and 260 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 1990-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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 1990-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
22 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1824 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSBN 170042 COR
SVRSBN
INC141-170100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION...
NATIONAL WEATHER SERVICE SOUTH BEND IN
729 PM EST MON JUL 16 1990

THE NATIONAL WEATHER SERVICE IN SOUTH BEND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTY...

IN NORTH CENTRAL INDIANA
          ...NORTHEASTERN ST JOSEPH

AT 728 PM EST...SOUTH BEND RADAR INDICATED A SEVERE THUNDERSTORMm
OVER THE CITY OF SOUTH BEND.

THE STORM IS MOVING EAST AT 30 MILES AN HOUR.

TOWNS IN THE PATH OF THIS STORM ARE SOUTH BEND...MISHAWAKA AND GRANGER.
MS

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 16, 7:59 PM ESTSevere Thunderstorm WarningINDElkhart46 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.