Alert archive / Michigan / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 7, NWS Gaylord, MI

June 7, 1987Leelanau County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 7, 1987, 2:08 PM EDT for Leelanau County, Michigan. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 7, 1987, 2:08 PM EDT (18:08 UTC)
Expired
Jun 7, 1987, 3:05 PM EDT
In force
57 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Leelanau 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.1 hours before the alert went out and 179 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, Green Bay/Straub, WI at 12:00Z on 1987-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 82 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, Green Bay/Straub, WI at 12:00Z on 1987-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 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
82 J/kg
Mixed-layer CIN
-638 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
218 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 071808
SVRMKG
MIC089-071930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MUSKEGON MI
208 PM EDT SUN JUN 7 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND 
SPECIAL MARINE WARNING EFFECTIVE UNTIL 330 PM EDT FOR PEOPLE IN THE 
FOLLOWING COUNTY OF

NORTHWEST LOWER MICHIGAN...LEELANAU
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

AT 201PM EDT RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES
NORTHWEST OF TRAVERSE CITY IN NORTHWEST LOWER MICHIGAN...ABOUT 15
MILES WEST OF NORTH MANITO ISLAND...MOVING TOWARD THE EAST AT 30
MILES AN HOUR.

IF YOU ARE IN THE PATH OF THIS STORM..GET TO A REINFORCED BUILDING.
SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WIND..LARGE HAIL..VERY
HEAVY RAIN..AND FREQUENT LIGHTNING. THEY OCCASIONALLY DO SPAWN A
TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT.

BOATERS SHO3ULD SEEK SAFE HARBOR IMMEDIATELY!

GALLOWAY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 12:15 AM EDTSevere Thunderstorm WarningAPXChippewa, Luce75 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1987Every severe thunderstorm warning in 1987

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.