Alert archive / Michigan / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 9, NWS Gaylord, MI

June 29, 1987Oscoda County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 29, 1987, 3:07 PM EDT for Oscoda County, Michigan. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1987, 3:07 PM EDT (19:07 UTC)
Expired
Jun 29, 1987, 3:55 PM EDT
In force
48 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Oscoda 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, 7.1 hours before the alert went out and 199 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 1987-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Sault Ste Marie, MI at 12:00Z on 1987-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897Sfc1 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
7 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
667 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
80 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 KAPN 291907
SVRAPN
MIC135-292000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALPENA MI
307 PM EDT MON JUN 29 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 400 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

NORTHEAST LOWER MICHIGAN...SOUTHERN OSCODA

AT 300 PM EDT A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 10 MILES
NORTHEAST OF HOUGHTON LAKE IN NORTHEAST ROSCOMMON COUNTY. THIS
STORM WAS MOVING EAST AT 40 MILES AN HOUR. GOLFBALL SIZE HAIL HAS
BEEN REPORTED WITH THIS STORM.

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

STAY TUNED TO YOUR LOCAL RADIO OR TELEVISION STATION..OR TO NOAA
WEATHER RADIO FOR THE LATEST INFORMATION.

KAMINSKE

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.