Alert archive / Michigan / Tornado Warnings in 1986

Tornado Warning 16, NWS Grand Rapids, MI

October 1, 1986Hillsdale County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Oct 1, 1986, 6:45 PM EDT for Hillsdale County, Michigan. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Oct 1, 1986, 6:45 PM EDT (22:45 UTC)
Expired
Oct 1, 1986, 7:15 PM EDT
In force
30 min
Issued by
NWS Grand Rapids, MI
Area
Whole counties

County Hillsdale 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, 10.8 hours before the alert went out and 133 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 1986-10-01Temperature 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 1986-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 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
745 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
231 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 012245
TORLAN
MIC059-012315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE LANSING MI
645 PM EDT WED OCT 1 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 715 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

SOUTH CENTRAL LOWER MICHIGAN...HILLSDALE


AT 640 PM EDT SEVERAL REPORTS OF TORNADOES OR FUNNEL CLOUDS WERE
RECEIVED FROM EXTREME NORTHEAST INDIANA EAST OF ANGOLA.  THE THUNDER
STORM IN THIS AREA WAS MOVING TO THE EAST NORTHEAST AT 25 MPH.
PEOPLE IN EXTREME SOUTHERN HILLSDALE COUNTY ARE IN THE PATH OF THIS
STORM AND SHOULD REMAIN ALERT AS IT MOVES INTO YOUR AREA.

IF YOU ARE IN THE PATH OF THIS STORM...GO TO A BASEMENT SHELTER IF
AVAILABLE OR GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST FLOOR. DO
NOT STAY IN A CAR OR MOBILE HOME...FIND A REINFORCED SHELTER. A DITCH
...RAVINE OR OTHER LOW AREA WILL ALSO OFFER SHELTER.  STAY AS LOW AS
POSSIrBLE AND COVER YOUR HEAD TO AVOID INJURY FROM FLYING DEBRIS.

 BUNTING

Nearby

Tornado Warnings in Michigan, 1986Every tornado warning in 1986Tornadoes in 1986

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.