Alert archive / Michigan / Tornado Warnings in 1990
Tornado Warning 4, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Sep 14, 1990, 10:18 AM EDT for Kent County, Montcalm County, Michigan. It was in force for 27 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
- Sep 14, 1990, 10:18 AM EDT (14:18 UTC)
- Expired
- Sep 14, 1990, 10:45 AM EDT
- In force
- 27 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
Counties Kent County, MI, Montcalm 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 |
|---|---|---|---|
| Sep 14, 10:40 AM EDT | Thunderstorm Wind 0 | Montcalm, MI | |
| Sep 14, 10:40 AM EDT | Thunderstorm Wind 0 | Kent, 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
Detroit, MI (KFNT), launched 12:00Z, 2.3 hours before the alert went out and 164 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
- 134 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 825 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KGRR 141419
TORGRR
MIC081-117-141445-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1018 AM EDT FRI SEP 14 1990
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1045 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHWEST MICHIGAN
...NORTHEASTERN KENT...SOUTHERN MONTCALM
AT 1009AM EDT STATE POLICE REPORTED AN UNCONFIRMED TORNADO JUST WEST
OF SAND LAKE...25 MILES NORTH OF GRAND RAPIDS MOVING TOWARD THE
SOUTHEAST AT 35 MPH. DAMAGE WAS TO HOMES AND TREES. THIS TORNADO WAS
MOVING TOWARD THE COMMUNITIES OF LINCOLN LAKE...IN NORTHEAST KENT
COUNTY...GOWEN AND GREENVILLE IN MONTCALM COUNTY.
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 11:03 AM EDT | Severe Thunderstorm Warning | GRR | Isabella | 27 min |
| Sep 14, 11:09 AM EDT | Tornado Warning | GRR | Ionia | 36 min |
| Sep 14, 11:51 AM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kalamazoo, Van Buren | 39 min |
| Sep 14, 12:13 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Eaton | 62 min |
| Sep 14, 12:38 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 52 min |
| Sep 14, 12:45 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 60 min |
Nearby
Tornado Warnings in Michigan, 1990Every tornado warning in 1990Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.