Alert archive / Michigan / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 7, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 4, 1989, 11:18 PM EDT for Manistee County, Mason County, Michigan. It was in force for 57 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 4, 1989, 11:18 PM EDT (03:18 UTC)
- Expired
- Aug 5, 1989, 12:15 AM EDT
- In force
- 57 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
Counties Manistee County, MI, Mason County, MI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 11:45 PM EDT | Thunderstorm Wind 0 | Manistee, MI | |
| Aug 5, 12:00 AM EDT | Thunderstorm Wind 0 | Mason, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.3 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 3204 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1215 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMKG 050318 RRA
SVRMKG
MIC101-105-050415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MUSKEGON MI
1118 PM EDT FRI AUG 4 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 1215 AM EDT FOR
PEOPLE IN THE FOLLOWING COUNTIES
IN THE NORTHWEST PART OF LOWER MICHIGAN
MANISTEE...
IN THE WEST CENTRAL PART OF LOWER MICHIGAN
MASON...
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTIES JUST MENTIONED
AT 1105 PM EDT WEATHER RADAR INDICATED AN AREA OF SEVERE THUNDER
STORMS OVER CENTRAL AND EASTERN LAKE MICHIGAN FROM WEST OF
ARCADIA IN NORTHWEST MANISTEE COUNTY TO ABOUT 20 MILES WEST OF
LUDINGTON IN MASON COUNTY. THESE STORMS WERE MOVING TO THE EAST
SOUTHEAST AT ABOUT 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.
IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN
AND DANGER_OUS LIGHTNING.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, Aug 4, 8:29 PM EDT, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 825 PM EDT FRI AUG 4 1989 AT 815 PM EDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS MOVING INTO OTSEGO COUNTY IN NORTH CENTRAL MICHIGAN. THE SHOWERS AND THUNDERSTORMS WERE LOCATED 50 MILES NORTHWEST OF HOUGHTON LAKE OR 15 MILES WEST OF GAYLORD. THE THUNDERSTORMS WERE MOVING EAST SOdUTHEAST AT AROUND 25 MILES AN HOUR AND WILL LIKELY PRODUCE HEAVY RAIN...GUSTY WINDS AND DANGEROUS LIGHTNING AND HAIL.
Special weather statement, Aug 4, 9:17 PM EDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 915 PM EDT FRI AUG 4 1989 AT 910 PM EDT...RADAR INDICATED THUNDERSTORMS MOVING THROUGH CRAWFORD COUNTY IN NORTH CENTRAL MICHIGAN. THE THUNDERSTORMS WERE LOCATED 20 MILES NORTHWEST OF HOUGHTON LAKE OR 7 MILES NORTHWEST OF GRAYLING MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. THE THUNDERSTORMS WILL LIKELY PRODUCE STRONG GUSTY WINDS...HAIL AND DANGEROUS LIGHTNING. THERE ARE NO TORNADO WATCHES IN EFFECT IN MICHIGAN.
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 9:18 PM EDT | Severe Thunderstorm Warning | APX | Montmorency | 42 min |
| Aug 4, 9:45 PM EDT | Severe Thunderstorm Warning | APX | Alpena | 31 min |
| Aug 4, 9:57 PM EDT | Severe Thunderstorm Warning | APX | Missaukee, Wexford | 63 min |
| Aug 5, 12:06 AM EDT | Severe Thunderstorm Warning | APX | Muskegon, Oceana | 69 min |
| Aug 5, 12:06 AM EDT | Severe Thunderstorm Warning | APX | Manistee, Mason | 39 min |
| Aug 5, 4:45 PM EDT | Severe Thunderstorm Warning | APX | Chippewa, Luce | 60 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1989Every severe thunderstorm warning in 1989
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.