Alert archive / Michigan / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 18, NWS Grand Rapids, MI

September 14, 1990Jackson County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Sep 14, 1990, 12:45 PM EDT for Jackson County, Michigan. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Sep 14, 1990, 12:45 PM EDT (16:45 UTC)
Expired
Sep 14, 1990, 1:45 PM EDT
In force
60 min
Issued by
NWS Grand Rapids, MI
Area
Whole counties

County Jackson 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

Detroit, MI (KFNT), launched 12:00Z, 4.8 hours before the alert went out and 97 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, Detroit, MI at 12:00Z on 1990-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 134 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, Detroit, MI at 12:00Z on 1990-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.19395878Sfc1 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
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

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Sep 14, 8:43 AM EDT, 4 hours 2 minutes before
MIZ002-003-004-009-010-013-015-016-141400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI...CORRECTION
840 AM EDT FRI SEP 14 1990

...STRONG THUNDERSTORMS HEADED TOWARD SOUTHWEST LOWER MICHIGAN...

AT 835 AM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS...A FEW
WITH VERY HEAVY RAIN HEADING TOWARD SOUTHWEST LOWER MICHIGAN. THE
THUNDERSTORMS EXTENDED FROM ALPENA IN NORTHEAST LOWER MICHIGAN TO
JUST NORTHWEST OF MUSKEGON...OR 60 MILES NORTHWEST OF GRAND RAPIDS...
THEN SOUTHWEST TO CHICAGO.

THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 35 MILES MPH AND WILL
MOVE INTO THE COUNTIES OF SOUTHWEST LOWER MICHIGAN BY 900AM THIS
MORNING...AND INTO THE GRAND RAPIDS AREA BY 1000AM.

THE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...HAIL...
HEAVY RAINFALL...AND LIGHTNING AS THEY MOVE THROUGH PARTS OF SOUTHWEST
LOWER MICHIGAN THIS MORNING. IF THREATENING WEATHER APPROACHES YOUR
AREA BE PREPARED TO MOVE TO A IPLACE OF SAFETY.

BOATERS ON LAKE MICHIGAN IN THE NEARSHORE AREAS FROM NEW BUFFALO NORTH
TO GRAND HAVEN SHOULD BE PREPARED TO TAKE SAFETY PRECAUTIONS AS THEY
APPROACH...AND SEEK SAFE HARBOR.

JSB
Special weather statement, Sep 14, 9:11 AM EDT, 3 hours 34 minutes before
MIZALL-141500-

SPECIAL WEATHER AND MARINE STATEMENT
NATIONAL WEATHER SERVICE MUSKEGON MI
905 AM EDT FRI SEP 14 1990

...SHOWERS AND THUNDERSTORMS MOVING ACROSS WEST CENTRAL LOWER MICHIGAN
   THIS MORNING...

AT 9 AM EDT WEATHER RADAR DETECTED THUNDERSTORMS...A FEW WITH HEAVY RAINS
OCCURRING ACROSS PARTS OF WEST CENTRAL AND NORTHWEST LOWER MICHIGAN. THE
LEADING EDGE OF THE SHOWERS AND THUNDERSTORMS WAS NORTHWEST OF A LINE FROM
CHICAGO...TO MUSKEGON...TO HOUGHTON LAKE. THE SHOWERS AND THUNDERSTORMS
WERE MOVING EAST AT 35 MILES AN HOUR AND WILL BE AFFECTING ALL OF MUSKEGON
...NEWAYGO...MECOSTA...AND OSCEOLA COUNTIES IN THE NEXT HOUR. NO SEVERE
WEATHER HAS BEEN DETECTED ON RADAR...HOWEVER THESE SHOWERS AND STORMS ARE
CAPABLE OF PRODUCING GUSTY WINDS...VERY HEAVY RAINS...SMALL HAIL AND
DEADLY LIGHTNING STRIKES AS THEY MOVE ACROSS THE AREA.

IF THREATENING WEATHER DOES APPROACH YOUR AREA BE PREPARED TO SEEK A
PLACE OF SAFETY.

SMITH
s
Special weather statement, Sep 14, 9:14 AM EDT, 3 hours 31 minutes before
MIZALL-141500-

SPECIAL WEATHER AND MARINE STATEMENT...CORRECTION...
NATIONAL WEATHER SERVICE MUSKEGON MI
905 AM EDT FRI SEP 14 1990

...SHOWERS AND THUNDERSTORMS MOVING ACROSS WEST CENTRAL LOWER MICHIGAN
   THIS MORNING...

AT 9 AM EDT WEATHER RADAR DETECTED THUNDERSTORMS...A FEW WITH HEAVY RAINS
OCCURRING ACROSS PARTS OF WEST CENTRAL AND NORTHWEST LOWER MICHIGAN. THE
LEADING EDGE OF THE SHOWERS AND THUNDERSTORMS WAS NORTHWEST OF A LINE FROM
CHICAGO...TO MUSKEGON...TO HOUGHTON LAKE. THE SHOWERS AND THUNDERSTORMS
WERE MOVING EAST AT 35 MILES AN HOUR AND WILL BE AFFECTING ALL OF MUSKEGON
...NEWAYGO...MECOSTA...AND OSCEOLA COUNTIES IN THE NEXT HOUR. NO SEVERE
STORMS HAVE BEEN DETECTED ON RADAR...HOWEVER THESE SHOWERS AND STORMS ARE
CAPABLE OF PRODUCING GUSTY WINDS...VERY HEAVY RAINS...SMALL HAIL AND
DEADLY LIGHTNING STRIKES AS THEY MOVE ACROSS THE AREA.

IF THREATENING WEATHER DOES APPROACH YOUR AREA BE PREPARED TO SEEK A
PLACE OF wSAFETY.

SMITH
Special weather statement, Sep 14, 9:40 AM EDT, 3 hours 5 minutes before
MIZ002-003-004-009-010-013-015-016-141500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
940 AM EDT FRI SEP 14 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3PM EDT FOR MUCH OF
LOWER MICHIGAN...

AT 935 AM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS...SOME
WITH VERY HEAVY RAIN HEADING TOWARD SOUTHWEST LOWER MICHIGAN. THE
THUNDERSTORMS EXTENDED FROM HOUGHTON LAKE IN NORTH LOWER MICHIGAN TO
MUSKEGON THEN SOUTHWEST TO GARY INDIANA...45 MILES SOUTHEAST OF CHICAGO.

THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT 35 MILES MPH AND WILL
MOVE TO THE GRAND RAPIDS AREA BY 10 AM.

AN UNCOMFIRMED TORNADO WAS REPORTED IN OCEANA COUNTY NEAR FERRY...25
MILES NORTH OF MUSKEGON. THE TORNADO WAS SIGHTED AT 840AM EDT BY
SEVERAL CITIZENS AND A DEPUTY.
THE THUNDERSTORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN...GUSTY
WINDS...LIGHTNING AND TORNADOES. PLEASE STAY ALERT FOR SEVERE WEATHER IN
YOUR AREA AND STAY TUNED TO WEATHER RADIO.

JSB
Special weather statement, Sep 14, 11:09 AM EDT, 1 hour 36 minutes before
MIZALL-141600-

SPECIAL WEATHER AND MARINE STATEMENT
NATIONAL WEATHER SERVICE MUSKEGON MI
1110 AM EDT FRI SEP 14 1990

...SEVERE THUNDERSTORM WATCH NUMBER 744 CANCELLED FOR PARTS OF WEST
   CENTRAL LOWER MICHIGAN...

AT 11 AM EDT A LARGE AREA OF SHOWERS AND THUNDERSTORMS WAS LOCATED
ACROSS PARTS OF NORTHWEST AND WEST CENTRAL LOWER MICHIGAN. THE SHOWERS AND
THUNDERSTORMS WERE WEST OF A LINE FROM JUST NORTH OF SAGINAW TO SOUTHWEST
OF BATTLE CREEK. THE SHOWERS AND STORMS WERE MOVING EAST AT 35 MILES AN
HOUR.

REPORTS FROM THE SHERIFFS OFFICE IN OCEANA COUNTY INDICATED THAT A BARN
WAS DESTROYED SOUTH OF FERRY...IN SOUTH CENTRAL OCEANA COUNTY...OR 25 MILES
OF MUSKEGON. TREES AND POWER LINES WERE ALSO DAMAGED AS THE THUNDERSTORMS
ROLLED THROUGH THE AREA THIS MORNING. IN SOUTHEAST LAKE COUNTY...NEAR THE
TOWN OF CHASE...OR 50 MILES NORTH-NORTHEAST OF MUSKEGON...REPORTS FROM THE
LAKE COUNTY SHERIFF DEPARTMENT INDICATED ROOF DAMAGE TO A BARN NEAR THE
TOWN OF CHASE...LOCATED IN SOUTHEAST LAKE COUNTY.

AS THE THUNDERSTORMS AND ASSOCIATED COLD FRONT MOVED THROUGH THE MUSKEGON
COUNTY AIRPORT...WINDS GUSTED TO 33 MILES AN HOUR ALONG WITH A 13 DEGREE
TEMPERATURE DROP. RAINFALL AMOUNTS WERE JUST OVER AN INCH SINCE 8AM THIS
MORNING.

THE SHOWERS AND THUNDERSTORMS WILL CONTINUE FOR THE NEXT SEVERAL HOURS
ACROSS WEST CENTRAL AND NORTHWEST LOWER MICHIGAN...BUT THE THREAT OF
ANY SEVERE WEATHER HAS ENDED ACROSS THE AREA.

SMITH
Special weather statement, Sep 14, 12:44 PM EDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 10:18 AM EDTTornado WarningGRRKent, Montcalm27 min
Sep 14, 11:03 AM EDTSevere Thunderstorm WarningGRRIsabella27 min
Sep 14, 11:09 AM EDTTornado WarningGRRIonia36 min
Sep 14, 11:51 AM EDTSevere Thunderstorm WarningGRRAllegan, Barry, Kalamazoo, Van Buren39 min
Sep 14, 12:13 PM EDTSevere Thunderstorm WarningGRRCalhoun, Eaton62 min
Sep 14, 12:38 PM EDTSevere Thunderstorm WarningGRRIngham52 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.