Alert archive / Michigan / Tornado Warnings in 1986

Tornado Warning 4, NWS Marquette, MI

July 27, 1986Alger County, Michigan

NWS Marquette, MI issued this tornado warning at Jul 27, 1986, 6:15 PM EDT for Alger County, Michigan. It was in force for 15 min.

The area

The counties it named.

The facts

Issued
Jul 27, 1986, 6:15 PM EDT (22:15 UTC)
Expired
Jul 27, 1986, 6:30 PM EDT
In force
15 min
Issued by
NWS Marquette, MI
Area
Whole counties

County Alger 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

Sault Ste Marie, MI (KSSM), launched 12:00Z, 10.3 hours before the alert went out and 172 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, Sault Ste Marie, MI at 12:00Z on 1986-07-27Temperature 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, Sault Ste Marie, MI at 12:00Z on 1986-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1154 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
98 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 KMQT 272217 COR
TORMQT
MIC003-272230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO AND SPECIAL MARINE WARNING..CORRECTED TORNADOES TO FUNNEL CLDS
NATIONAL WEATHER SERVICE MARQUETTE MI
615 PM EDT SUN JUL 27 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO AND SPECIAL
MARINE WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE
FOLLOWING COUNTY OF

NORTH CENTRAL UPPER MICHIGAN...ALGER
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 548 PM EDT..MICHIGAN STATE POLICE REPORTED TWO FUNNEL CLOUDS 1 MILE
WEST OF EBEN..30 MILES SOUTHEAST OF MARQUETTE MICHIGAN..MOVING
TO THE EAST AT 30 MILES AN HOUR.

IF YOU ARE IN THE PATH OF A 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.

REPORT ALL SEVERE WEATHER SIGHTINGS TO YOUR NEAREST LAW
ENFORCEMENT AGENCY AND ASK THEM TO RELAY IT TO THE NATIONAL
WEATHER SERVICE.

EGGER

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 27, 4:56 PM EDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MARQUETTE MI
455 PM EDT SUN JUL 27 1986

AT 440 PM EDT..THUNDERSTORMS WITH VERY HEAVY RAINSHOWERS WERE
OVER CENTRAL UPPER MICHIGAN.  THE HEAVIEST SHOWER ACTIVITY
WAS ABOUT 25 MILES SOUTHEAST OF MARQUETTE..NEAR GWINN.

ANOTHER AREA OF THUNDERSTORMS..SOME WITH HEAVY RAINSHOWERS WAS
IN NORTHCENTRAL WISCONSIN AND EXTENDED EAST THROUGH IRON MOUNTAIN
TO 15 MILES WEST OF ESCANABA.

ALL SHOWERS AND THUN"DERSTORMS WERE MOVING TO THE EAST AT 30
MILES AN HOUR.

EGGER

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.