Alert archive / Michigan / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 5, NWS Gaylord, MI

June 23, 1986Alpena County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 23, 1986, 7:36 PM EDT for Alpena County, Michigan. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Jun 23, 1986, 7:36 PM EDT (23:36 UTC)
Expired
Jun 23, 1986, 8:30 PM EDT
In force
54 min
Issued by
NWS Gaylord, MI
Area
Whole counties

County Alpena 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, 11.6 hours before the alert went out and 169 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 1986-06-23Temperature 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 1986-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1200 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
72 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 232336
SVRAPN
MIC007-240030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ALPENA MI
736 PM EDT MON JUN 23 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND 
SPECIAL MARINE WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE 
FOLLOWING COUNTY OF

NORTHEAST LOWER MICHIGAN...EASTERN ALPENA
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED

A SEVERE THUNDERSTORM HAS DEVELOPED OVER EAST ALPENA COUNTY AND IS
MOVING EAST AT 35 MILES.

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.

SMALL BOATS ARE ADVISED TO SEEK SAFE HARBOR IMMEDIATELY. WIND AND
WAVE CONDITIONS MAY INCREASE DRASTICALLY WITH THUNDERSTORMS.

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, 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.