Alert archive / Michigan / Tornado Warnings in 1990

Tornado Warning 45, NWS Indianapolis, IN

July 16, 1990Cass County, Michigan

NWS Indianapolis, IN issued this tornado warning at Jul 16, 1990, 7:44 PM EST for Cass County, Michigan. It was in force for 31 min.

The area

The counties it named.

The facts

Issued
Jul 16, 1990, 7:44 PM EST (00:44 UTC)
Expired
Jul 16, 1990, 8:15 PM EST
In force
31 min
Issued by
NWS Indianapolis, IN
Area
Whole counties

County Cass 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, 0.7 hours before the alert went out and 229 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 1990-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 165 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 1990-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
165 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1608 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSBN 170045
TORSBN
MIC027-170115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SOUTH BEND IN
744 PM EST (844 PM EDT) MON JUL 16 1990
 
THE NATIONAL WEATHER SERVICE IN SOUTH BEND HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  815 PM EST (915 PM EDT)
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHWEST MICHIGAN
          ...CASS
 
AT 740 PM EST/840 PM EDT...A CONFIRMED TORNADO WAS REPORTED AT
EDWARDSBURG MICHIGAN...10 MILES NORTHEAST OF SOUTH BEND.
 
THE TORNADO IS MOVING EAST AT 30 MPH.
 
TOWNS IN THE PATH OF THIS TORNADO ARE ADAMSVILLE AND UNION MICHIGAN.
 
ONE INCH SIZE HAIL WAS REPORTED AT CASSOPOLIS MICHIGAN AT 830 PM EDT.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODvY.  AVOID WINDOWS.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

Nearby

Tornado Warnings in Michigan, 1990Every tornado warning in 1990Tornadoes 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.