Alert archive / Michigan / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 65, NWS Grand Rapids, MI

July 26, 2023Jackson County, Michigan

NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 26, 2023, 6:34 PM EDT for Jackson County, Michigan. It was in force for 56 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: Jul 26, 2023, 6:34 PM EDT (22:34 UTC)
Expired: Jul 26, 2023, 7:30 PM EDT
In force: 56 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County Jackson County, MI

The radar

The Detroit radar (KDTX), 93 km from the middle of the area, began a volume at 22:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 26, 6:33 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.6 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-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: 1873 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 81 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 Jul 26, 3:49 PM EDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 26, 3:49 PM EDT, 2 hours 45 minutes before

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Hazardous weather outlook, Jul 26, 5:00 AM EDT, 13 hours 34 minutes before

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
500 AM EDT Wed Jul 26 2023

MIZ037>040-043>046-050>052-056>059-064>067-071>074-270900-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
500 AM EDT Wed Jul 26 2023

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

.DAY ONE...Today and Tonight

Rounds of thunderstorms are expected today from roughly noon
through 700pm this evening. Storms will move onshore from Lake
Michigan at midday and move eastward as we head through the
afternoon and evening hours. Damaging winds are the most likely
threat with gusts in excess of 60 mph possible. Both hail and
isolated tornadoes are also possible. All areas of Southwest Lower
Michigan have a chance of severe weather with the best chance
south and east of a line from Grand Haven to Mt. Pleasant.

Heavy rain is also possible today leading to localized flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Another round of storms and potential heavy rain will occur on
Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible today.

LMZ844>849-270900-
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-
500 AM EDT Wed Jul 26 2023

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

.DAY ONE...Today and Tonight

South winds today of 10 to 20 knots will build waves into the 2 to
4 foot range north of Holland. A moderate swim risk will exist
today in these areas.

Thunderstorms are expected over Lake Michigan from late morning
through the afternoon. Storms will be capable of damaging winds,
possibly in excess of 50 knots.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Another round of storms is expected on Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible today.

DUKE

In the hours before

Local storm report, Jul 26, 3:24 PM EDT, 3 hours 10 minutes before

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Local storm report, Jul 26, 3:41 PM EDT, 2 hours 53 minutes before

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Local storm report, Jul 26, 3:55 PM EDT, 2 hours 39 minutes before

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Local storm report, Jul 26, 4:29 PM EDT, 2 hours 5 minutes before

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Special weather statement, Jul 26, 5:37 PM EDT, 57 minutes before

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Local storm report, Jul 26, 6:34 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 9:18 AM EDT	Special Marine Warning	GRR		87 min
Jul 26, 9:38 AM EDT	Special Weather Statement	GRR	Lake, Mason, Muskegon, Newaygo, Oceana	52 min
Jul 26, 9:56 AM EDT	Severe Thunderstorm Warning	GRR	Mason, Oceana	49 min
Jul 26, 10:52 AM EDT	Special Marine Warning	GRR		53 min
Jul 26, 11:01 AM EDT	Special Weather Statement	GRR	Lake, Mecosta, Newaygo, Osceola	59 min
Jul 26, 11:08 AM EDT	Special Weather Statement	GRR	Van Buren	52 min
Jul 26, 11:42 AM EDT	Special Marine Warning	GRR		63 min
Jul 26, 11:47 AM EDT	Special Weather Statement	GRR	Muskegon	58 min
Jul 26, 12:08 PM EDT	Areal Flood Advisory	GRR	Muskegon	4 hr
Jul 26, 12:20 PM EDT	Special Weather Statement	GRR	Isabella	55 min
Jul 26, 12:24 PM EDT	Special Weather Statement	GRR	Barry, Calhoun, Eaton, Kalamazoo	66 min
Jul 26, 12:36 PM EDT	Special Weather Statement	GRR	Kent, Montcalm	54 min
Jul 26, 1:39 PM EDT	Special Weather Statement	GRR	Eaton, Ingham, Jackson	66 min
Jul 26, 1:42 PM EDT	Special Marine Warning	GRR		63 min
Jul 26, 1:58 PM EDT	Special Weather Statement	GRR	Gratiot, Isabella, Mecosta, Montcalm	62 min
Jul 26, 2:04 PM EDT	Special Weather Statement	GRR	Ottawa	56 min
Jul 26, 2:17 PM EDT	Special Weather Statement	GRR	Ingham, Jackson	58 min
Jul 26, 2:30 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GRR	Jackson	30 min
Jul 26, 2:31 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	44 min
Jul 26, 2:37 PM EDT	Tornado Warning	GRR	Ingham	23 min
Jul 26, 5:37 PM EDT	Special Weather Statement	GRR	Kalamazoo	53 min
Jul 26, 6:06 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun, Kalamazoo	39 min
Jul 26, 6:42 PM EDT	Severe Thunderstorm Warning	GRR	Calhoun	16 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2023 Every 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.