Alert archive / Michigan / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Grand Rapids, MI

June 3, 1989Branch County, Calhoun County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 3, 1989, 11:49 AM EDT for Branch County, Calhoun County, Michigan. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jun 3, 1989, 11:49 AM EDT (15:49 UTC)
Expired
Jun 3, 1989, 12:40 PM EDT
In force
51 min
Issued by
NWS Grand Rapids, MI
Area
Whole counties

Counties Branch County, MI, Calhoun 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 12:00Z, 3.8 hours before the alert went out and 150 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 12:00Z on 1989-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1989-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1983 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
79 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 KLAN 031549
SVRLAN
MIC023-025-031645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LANSING MI
1149 AM EDT SAT JUN 3 1989
 
THE NATIONAL WEATHER SERVICE IN LANSING HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL MICHIGAN
          ...BRANCH...CALHOUN
 
AT 1245 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM 25 MILES
SOUTHWEST OF BATTLE CREEK...20 MILES WEST OF COLDWATER MOVING
NORTHEAST AT 40 MPH. THE STORM WILL MOVE INTO SOUTHWEST CALHOUN COUNTY
AND WESTERN BRANCH COUNTY BY NOON AND TO THE COLDWATER AND MARSHALL
AREA BY 1215 PM EDT.
 
 
A TORNADO WATCH IS ALSO IN EFFECHT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 11:41 AM EDTTornado WarningGRRSaint Joseph34 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1989Every severe thunderstorm warning in 1989

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.