Alert archive / Michigan / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 3, NWS Gaylord, MI

June 30, 19904 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 30, 1990, 1:03 AM EDT for 4 counties in Michigan. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 30, 1990, 1:03 AM EDT (05:03 UTC)
Expired
Jun 30, 1990, 2:00 AM EDT
In force
57 min
Issued by
NWS Gaylord, MI
Area
Whole counties

Counties Benzie County, MI, Grand Traverse County, MI, Manistee County, MI, Wexford 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 00:00Z, 5.1 hours before the alert went out and 175 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 00:00Z on 1990-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2871 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1990-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
2871 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMKG 300503
SVRMKG
MIC019-055-101-165-300600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE MUSKEGON MI
103 AM EDT SAT JUN 30 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 200 AM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHWEST PART OF LOWER MICHIGAN
      SOUTHEAST BENZIE...SOUTHERN GRAND TRAVERSE...NORTHEAST 
      MANISTEE...NORTHERN WEXFORD

AT 145AM EDT WEATHER RADAR DETECTED A SEVERE THUNDERSTORM 20
MILES SOUTHWEST OF TRAVERSE CITY...NEAR THE TOWN OF THOMPSONVILLE
IN SE BENZIE COUNTY. THE THUNDERSTORM IS MOVING SOUTHEAST AT 35
MILES AN HOUR.

IF YOU ARE IN THE PATH OF THIS STORM.....GO TO A BASEMENT SHELTER IF
AVAILABLE...OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE LOWEST
FLOOR. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING.

THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY.

 SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH
 ...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR
 YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
 YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT
 DRIVE INTO AREAS WHERE WATER2 COVERS THE ROAD.

 SMITH

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 30, 12:07 AM EDT, 56 minutes before
MIZ045-043-044-046-047-063 300402

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
1202 AM EDT SAT JUN 30 1990

...STRONG THUNDERSTORMS MOVING TOWARDS HOUGHTON LAKE...

AT 1200 MIDNIGHT WEATHER RADAR AT HOUGHTON LAKE INDICATED AN AREA
OF VERY STRONG THUNDERSTORMS ABOUT 25 MILES NORTHWEST OF HOUGHTON
LAKE. THE STRONGEST STORMS ARE CURRENTLY ABOUT 45 MILES NORTHWEST
OF HOUGHTON LAKE AND ARE MOVING SOUTHEAST AT ABOUT 35 MILES AN
HOUR.

PERSONS IN ROSCOMMON AND CRAWFORD COUNTIES SHOULD BE ESPECIALLY
ALERT DURING THE NEXT SEVERAL HOURS FOR THESE THUNDERSTORMS AS
THEY WILL PRODUCE VERY HEAVY RAINS...DANGEROUS LIGHTNING AND
STRONG GUSTY WINDS AS THEY PASS THROUGH THE AREA.

BOATERS ON HOUGHTON LAKE TONIGHT SH0ULD MOVE TO THE SAFETY OF THE
SHORE IMMEDIATELY AS THESE DANGEROUS STORMS WILL REACH THE HOUGHTON
LAKE AREA IN THE NEXT TWENTY MINUTES TO HALF HOUR.

KEITH DICKS
Special weather statement, Jun 30, 12:45 AM EDT, 18 minutes before
MIZ045-043-044-046-047-063 300402

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUGHTON LAKE MI
1240 AM EDT SAT JUN 30 1990

...STRONG THUNDERSTORMS MOVING TOWARDS HOUGHTON LAKE...

AT 1230 AM EDT WEATHER SERVICE RADAR FROM HOUGHTON LAKE INDICATED
AN AREA OF VERY STRONG THUNDERSTORMS FROM 20 MILES NORTHWEST OF
HOUGHTON LAKE TO GRAND TRAVERSE BAY. MOVEMENT IS EAST TO SOUTHEAST
AT 30 TO 35 MILES AN HOUR.

PERSONS IN NORTHWEST AND NORTHCENTRAL LOWER MICHIGAN SHOULD
BE ON THE ALERT FOR THESE STRONG STORMS AS THEY WILL PRODUCE VERY
HEAVY RAINS...DANGEROUS LIGHTNING AND STRONG GUSTY WINDS AS THEY PASS
THROUGH THE AREA.

BOATERS ON HOUGHTON LAKE TON IGHT SH0ULD MOVE TO THE SAFETY OF THE
SHORE IMMEDIATELY AS THESE DANGEROUS STORMS WILL REACH THE HOUGHTON
LAKE AREA IN THE NEXT 15 TO 20 MINUTES.

KEITH DICKS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 1:18 AM EDTSevere Thunderstorm WarningAPXManistee57 min
Jun 30, 2:02 AM EDTSevere Thunderstorm WarningAPXMissaukee, Wexford58 min
Jun 30, 2:22 AM EDTSevere Thunderstorm WarningAPXLake, Manistee, Mason68 min
Jun 30, 3:52 AM EDTSevere Thunderstorm WarningAPXMuskegon, Oceana68 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1990Every severe thunderstorm warning in 1990

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.