Alert archive / Michigan / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 28, NWS Grand Rapids, MI

June 9, 20204 counties in Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 9, 2020, 9:31 PM EDT for 4 counties in Michigan. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 9, 2020, 9:31 PM EDT (01:31 UTC)
Expired: Jun 9, 2020, 10:04 PM EDT
In force: 33 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Barry County, MI, Ionia County, MI, Kent County, MI, Montcalm County, MI

The radar

The Grand Rapids radar (KGRR), 24 km from the middle of the area, began a volume at 01:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 1.5 hours before the alert went out and 153 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2192 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 270 m²/s²
0-3 km storm-relative helicity: 342 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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.

NWS Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 9, 7:40 PM EDT, 1 hour 51 minutes earlier.

Area forecast discussion, Jun 9, 7:40 PM EDT, 1 hour 51 minutes before

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Hazardous weather outlook, Jun 9, 5:13 PM EDT, 4 hours 18 minutes before

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
513 PM EDT Tue Jun 9 2020

MIZ037>040-043>046-050>052-056>059-064>067-071>074-100830-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
513 PM EDT Tue Jun 9 2020

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Tonight

A marginal risk for severe thunderstorms exists tonight, primarily
before midnight. Damaging wind gusts are possible along with a
slight chance of a brief tornado.

Strong southerly winds will impact the Lake Michigan shoreline
tonight, particularly north of Holland. Gusts to 45 mph are
expected, but a few gusts to 60 mph are possible. Scattered power
outages may occur.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Severe thunderstorms capable of producing large hail, damaging
winds, and even a tornado are possible on Wednesday. The highest
threat is east of Highway 131 in the afternoon, including Lansing,
Jackson, Alma, and Mt Pleasant.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this evening, then again on
Wednesday afternoon.

LMZ844>849-100830-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
513 PM EDT Tue Jun 9 2020

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Tonight

Southerly gale force winds will impact Lake Michigan tonight.
Waves of 6 to 10 feet are expected north of Holland and 4 to 6
feet to the south of Holland. Isolated severe thunderstorms are
also possible tonight, primarily between 6 PM and Midnight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There will be a lull in the wind on Wednesday before winds out of
west increase to gale force once again Wednesday evening.
Hazardous winds and waves will persist into Thursday before
subsiding late Thursday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this evening, then again on
Wednesday afternoon.

Meade 04

In the hours before

Local storm report, Jun 9, 6:50 PM EDT, 2 hours 41 minutes before

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Local storm report, Jun 9, 7:13 PM EDT, 2 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
713 PM EDT TUE JUN 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0653 PM     TSTM WND DMG     HOPKINS                 42.63N 85.76W
06/09/2020                   ALLEGAN            MI   PUBLIC

            TREE DOWN ON A HOUSE AT MAIN ST AND GOODELL.
            TIME ESTIMATED FROM RADAR.

&&

HLO

Local storm report, Jun 9, 7:29 PM EDT, 2 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
729 PM EDT TUE JUN 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0625 PM     TSTM WND DMG     PORTAGE                 42.20N 85.59W
06/09/2020                   KALAMAZOO          MI   PUBLIC

            DAMAGE TO POWER POLES AFTER TREE BRANCHES
            FELL ON LINES ON OSTERHOUT ROAD EAST OF
            SHAVER. TIME ESTIMATED FROM RADAR.

&&

HLO

Local storm report, Jun 9, 7:39 PM EDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
739 PM EDT TUE JUN 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0733 PM     TSTM WND DMG     1 WNW PORTAGE           42.21N 85.61W
06/09/2020                   KALAMAZOO          MI   TRAINED SPOTTER

            TREE DAMAGE TO HOUSE WITH MINOR CHIMNEY
            DAMAGE. SHINGLES MISSING.

&&

HLO

Local storm report, Jun 9, 7:44 PM EDT, 1 hour 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
744 PM EDT TUE JUN 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0707 PM     TSTM WND DMG     3 W OTSEGO              42.48N 85.75W
06/09/2020                   ALLEGAN            MI   PUBLIC

            MULTIPLE TREES DOWN AND ROADS BLOCKED IN
            OTSEGO TOWNSHIP, WATSON TOWNSHIP, ALLEGAN
            CITY, ALLEGAN TOWNSHIP, HOPKINS TOWNSHIP OF
            ALLEGAN COUNTY.

&&

HLO

Local storm report, Jun 9, 7:50 PM EDT, 1 hour 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
750 PM EDT TUE JUN 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0716 PM     TSTM WND GST     3 W JAMESTOWN           42.82N 85.90W
06/09/2020  M66 MPH          OTTAWA             MI   PUBLIC

            MEASURED GUST AT FELCH AND 48TH STREET.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 8:03 PM EDT	Special Marine Warning	GRR		69 min
Jun 9, 8:05 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Kalamazoo, Van Buren	55 min
Jun 9, 11:45 PM EDT	Severe Thunderstorm Warning	GRR	Newaygo	34 min
Jun 9, 11:54 PM EDT	Special Marine Warning	GRR		47 min
Jun 10, 12:17 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	21 min
Jun 10, 1:16 AM EDT	Severe Thunderstorm Warning	GRR	Allegan	22 min
Jun 10, 9:33 AM EDT	Special Weather Statement	GRR	Allegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 12 more	72 min
Jun 10, 10:13 AM EDT	Special Marine Warning	GRR		92 min
Jun 10, 11:06 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Kalamazoo	84 min
Jun 10, 11:12 AM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa, Van Buren	71 min
Jun 10, 11:20 AM EDT	Special Marine Warning	GRR		85 min
Jun 10, 11:29 AM EDT	Severe Thunderstorm Warning	GRR	Kent	77 min
Jun 10, 12:00 PM EDT	Severe Thunderstorm Warning	GRR	Clinton, Ionia	90 min
Jun 10, 12:09 PM EDT	Severe Thunderstorm Warning	GRR	Mecosta, Montcalm, Muskegon, Newaygo	70 min
Jun 10, 12:28 PM EDT	Severe Thunderstorm Warning	GRR	Gratiot	32 min
Jun 10, 12:51 PM EDT	Severe Thunderstorm Warning	GRR	Clare, Gratiot, Isabella, Osceola	57 min
Jun 10, 1:29 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo	61 min
Jun 10, 1:47 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun	43 min
Jun 10, 1:50 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry	40 min
Jun 10, 2:07 PM EDT	Severe Thunderstorm Warning	GRR	Eaton	53 min
Jun 10, 2:25 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun, Jackson	65 min
Jun 10, 2:39 PM EDT	Severe Thunderstorm Warning	GRR	Eaton, Ingham	66 min
Jun 10, 3:05 PM EDT	Severe Thunderstorm Warning	GRR	Jackson	40 min
Jun 10, 3:18 PM EDT	Areal Flood Advisory	GRR	Eaton, Ingham	3 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2020 Every severe thunderstorm warning in 2020

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; radar from the NEXRAD Level II archive.