Alert archive / Michigan / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 4, NWS Gaylord, MI

June 16, 1986Chippewa County, Mackinac County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 16, 1986, 6:30 AM EDT for Chippewa County, Mackinac County, Michigan. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 16, 1986, 6:30 AM EDT (10:30 UTC)
Expired
Jun 16, 1986, 7:30 AM EDT
In force
60 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Chippewa County, MI, Mackinac 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 00:00Z, 10.5 hours before the alert went out and 49 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 00:00Z on 1986-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 00:00Z on 1986-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 square meters per square second.193958Sfc1 km3 km6 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
1133 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
333 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Jun 16, 5:20 AM EDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAULT STE MARIE MI
0520 EDT MON JUN 16 1986

RADAR INDICATES A LINE OF THUNDERSTORMS WAS MOVING THROUGH THE
WHITEFISH BAY AREA IN CHIPPEWA COUNTY 40 MILES NW OF SAULT STE MARIE
AT 515 AM. IT WAS MOVING SOUTHEAST AT 25 MILES PER HOUR.

PEOPLE IN EASTERN CHIPPEWA COUNTY SHOULD BE PREPARED FOR SUDDEN STRONG
GUSTY WINDS AS THESE STORMS MOVE THROUGH THE AREA UNTIL 800 AM.
FREQUENT LIGHTING..AND BRIEF HEAVY RAIN IS LIKELY.

RAB

Nearby

Severe Thunderstorm Warnings in Michigan, 1986Every severe thunderstorm warning 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.