Alert archive / Michigan / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 75, NWS Indianapolis, IN

June 28, 1990Saint Joseph County, Michigan

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 28, 1990, 7:15 PM EST for Saint Joseph County, Michigan. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Jun 28, 1990, 7:15 PM EST (00:15 UTC)
Expired
Jun 28, 1990, 7:45 PM EST
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Saint Joseph County, MI

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

Detroit, MI (KFNT), launched 00:00Z, 0.3 hours before the alert went out and 194 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, Detroit, MI at 00:00Z on 1990-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Detroit, MI at 00:00Z on 1990-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
7 J/kg
Mixed-layer CIN
-216 J/kg
Mixed-layer LCL
766 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
126 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 290016
SVRSBN
MIC149-290045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
815 PM EDT (715 PM EST) THU JUN 28 1990
 
THE NATIONAL WEATHER SERVICE IN SOUTH BEND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM EDT (745 PM EST)
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHWEST MICHIGAN
          ...SOUTHEASTERN ST JOSEPH
 
AT 815 PM EDT...SOUTH BEND RADAR INDICATED A SEVERE THUNDERSTORM
BETWEEN BURR OAK AND STURGIS MICHIGAN...25 MILES SOUTH SOUTHEAST OF
KALAMAZOO MICHIGAN.
 
THE THUNDERSTORM IS MOVING EAST AT 15 MPH.
 
TOWNS IN THE PATH OF THIS STORM ARE FINDLEY...BURR OAK...STURGIS...AND
FAWN RIVER MICHIGAN.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKL'Y SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

Nearby

Severe Thunderstorm Warnings in Michigan, 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.