Alert archive / Michigan / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 10, NWS Grand Rapids, MI

April 5, 20234 counties in Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 5, 2023, 7:18 AM EDT for 4 counties in Michigan. It was in force for 42 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
Apr 5, 2023, 7:18 AM EDT (11:18 UTC)
Expired
Apr 5, 2023, 8:00 AM EDT
In force
42 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Allegan County, MI, Barry County, MI, Kalamazoo County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 57 km from the middle of the area, began a volume at 11:22 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 11.3 hours before the alert went out and 297 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 2023-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2023-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 737 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
737 m²/s²
0-3 km storm-relative helicity
1512 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

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 Apr 5, 3:25 AM EDT, 3 hours 53 minutes earlier.

Area forecast discussion, Apr 5, 3:25 AM EDT, 3 hours 53 minutes before
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Hazardous weather outlook, Apr 5, 3:47 AM EDT, 3 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
347 AM EDT Wed Apr 5 2023

MIZ037>040-043>046-050>052-056>059-064>067-071>074-060800-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
347 AM EDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

Occasional thunderstorms are expected this morning through the
afternoon. Damaging wind gusts, large hail, and isolated tornadoes
are possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

LMZ844>849-060800-
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-
347 AM EDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

Winds and waves will be hazardous to small craft today. Thunderstorms
will pose a hazard to mariners today.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Winds and waves will be hazardous to small craft Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

In the hours before

Special weather statement, Apr 5, 3:21 AM EDT, 3 hours 57 minutes before
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Special weather statement, Apr 5, 5:07 AM EDT, 2 hours 11 minutes before
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Local storm report, Apr 5, 5:45 AM EDT, 1 hour 33 minutes before
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Local storm report, Apr 5, 6:10 AM EDT, 1 hour 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 8:04 PM EDTSevere Thunderstorm Warning Considerable damage threatGRRClinton, Eaton, Ingham, Ionia34 min
Apr 5, 12:08 AM EDTSpecial Marine WarningGRR18 min
Apr 5, 1:21 AM EDTSpecial Marine WarningGRR54 min
Apr 5, 3:21 AM EDTSpecial Weather StatementGRRMason54 min
Apr 5, 5:07 AM EDTSpecial Weather StatementGRRMuskegon23 min
Apr 5, 6:44 AM EDTSpecial Marine WarningGRR61 min
Apr 5, 7:29 AM EDTSpecial Marine WarningGRR31 min
Apr 5, 7:46 AM EDTSpecial Weather StatementGRRIonia, Kent, Ottawa59 min
Apr 5, 8:02 AM EDTSpecial Weather StatementGRRClinton, Gratiot58 min
Apr 5, 8:22 AM EDTSpecial Weather StatementGRRIsabella, Mecosta, Montcalm53 min
Apr 5, 8:45 AM EDTSpecial Marine WarningGRR90 min
Apr 5, 9:12 AM EDTAreal Flood AdvisoryGRRAllegan, Barry, Calhoun, Clinton, Eaton, Gratiot and 7 more6 hr
Apr 5, 9:18 AM EDTSevere Thunderstorm WarningGRRAllegan, Kalamazoo, Van Buren57 min
Apr 5, 9:54 AM EDTSevere Thunderstorm WarningGRRKent42 min
Apr 5, 9:58 AM EDTSevere Thunderstorm WarningGRREaton47 min
Apr 5, 10:14 AM EDTSevere Thunderstorm WarningGRRClinton, Ingham61 min
Apr 5, 10:17 AM EDTSevere Thunderstorm WarningGRRIonia, Montcalm37 min
Apr 5, 10:34 AM EDTSevere Thunderstorm WarningGRRGratiot41 min
Apr 5, 10:38 AM EDTSevere Thunderstorm WarningGRRKalamazoo52 min
Apr 5, 10:54 AM EDTSevere Thunderstorm WarningGRRBarry34 min
Apr 5, 11:12 AM EDTSevere Thunderstorm WarningGRREaton46 min
Apr 5, 11:26 AM EDTSevere Thunderstorm WarningGRRCalhoun50 min
Apr 5, 11:37 AM EDTSevere Thunderstorm WarningGRRIngham53 min
Apr 5, 11:53 AM EDTSevere Thunderstorm WarningGRRJackson49 min
Apr 5, 11:54 AM EDTRiver Flood WarningGRRNewaygo6 days
Apr 5, 11:54 AM EDTRiver Flood WarningGRRNewaygo6 days
Apr 5, 11:54 AM EDTRiver Flood WarningGRRKent5 days
Apr 5, 11:54 AM EDTRiver Flood WarningGRROttawa8 days
Apr 5, 11:54 AM EDTRiver Flood WarningGRRIngham34 hr
Apr 5, 12:22 PM EDTGale WarningGRR8 hr
Apr 5, 3:49 PM EDTRiver Flood WarningGRRClinton52 hr
Apr 5, 3:49 PM EDTRiver Flood WarningGRRIngham64 hr
Apr 5, 3:49 PM EDTRiver Flood WarningGRRIonia4 days
Apr 5, 3:49 PM EDTRiver Flood WarningGRRKent4 days
Apr 5, 3:49 PM EDTRiver Flood WarningGRRKent6 days
Apr 5, 3:49 PM EDTRiver Flood WarningGRRKent5 days
Apr 5, 6:02 PM EDTRiver Flood WarningGRRGratiot18 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2023Every severe thunderstorm warning in 2023

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.