Alert archive / Michigan / Tornado Warnings in 1986

Tornado Warning 17, NWS Detroit, MI

July 25, 1986Clare County, Michigan

NWS Detroit, MI issued this tornado warning at Jul 25, 1986, 4:33 PM EDT for Clare County, Michigan. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1986, 4:33 PM EDT (20:33 UTC)
Expired
Jul 25, 1986, 5:00 PM EDT
In force
27 min
Issued by
NWS Detroit, MI
Area
Whole counties

County Clare 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, 8.6 hours before the alert went out and 182 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 1986-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 62 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 12:00Z on 1986-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
62 J/kg
Mixed-layer CIN
-181 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
-6 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 KARB 252033
TORHTL
MIC035-252100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
ISSUED BY ANN ARBOR MI
433 PM EDT FRI JUL 25 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

CENTRAL LOWER MICHIGAN...CLARE

A TORNADO WAS SPOTTED BY THE CLARE COUNTY SHERIFF 5 MI WEST OF
HARRISON MOVING EAST AT 25 MPH.

IF YOU ARE IN THE PATH OF THIS TORNADO..GO TO A BASEMENT SHELTER IF
AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR.  DO NOT STAY IN A CAR OR MOBILE HOME..FIND A REINFORCED
SHELTER OR LIE FLAT IN A DITCH OR RAVINE.

PHP,/CDD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 5:28 PM EDTSevere Thunderstorm WarningDTXLenawee, Washtenaw62 min
Jul 25, 5:56 PM EDTSevere Thunderstorm WarningDTXMonroe64 min

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.