Alert archive / Michigan / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 8, NWS Gaylord, MI

July 15, 1986Oceana County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 15, 1986, 7:37 PM EDT for Oceana County, Michigan. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1986, 7:37 PM EDT (23:37 UTC)
Expired
Jul 15, 1986, 8:25 PM EDT
In force
48 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Oceana 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, 11.6 hours before the alert went out and 257 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 1986-07-15Temperature 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 1986-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
951 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
69 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 KMKG 152337
SVRMKG
MIC127-160025-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MUSKEGON MI
737 PM EDT TUE JUL 15 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND 
SPECIAL MARINE WARNING EFFECTIVE UNTIL 825 PM EDT FOR PEOPLE IN THE 
FOLLOWING COUNTY OF

WEST CENTRAL LOWER MICHIGAN...OCEANA
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 725PM, A SEVERE THUNDERSTORM WAS 10 MILES WEST OF
PENTWATER..40 MILES NORTH OF MUSKEGON..MOVING EAST SOUTHEAST
AT 40 MILES AN HOUR.

 THIS IS A DANGEROUS STORM.  TAKE COVER IMMEDIATELY !

 THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNsING AND STRONG GUSTY
 WINDS.

 BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY !

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 7:45 PM EDTSevere Thunderstorm WarningAPXMuskegon60 min

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.