An isolated severe thunderstorm brought large hail and damaging wind gusts.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS GRR wrote it up.
An isolated severe thunderstorm brought large hail and damaging wind gusts.
The local office's own words before the first event, 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 the first event at Sep 20, 6:44 AM EST, 5 hours 11 minutes earlier.
Area Forecast Discussion National Weather Service Grand Rapids MI 744 AM EDT Tue Sep 20 2022 LATEST UPDATE... Aviation .DISCUSSION...(Today through next Monday) Issued at 310 AM EDT Tue Sep 20 2022 - Convection possible this afternoon through Wednesday morning - Showers across portions of WI early this morning should dissipate as they move east towards our area and encounter a stable airmass here. However we expect scattered convection to develop across portions of our area this afternoon due to gradually increasing elevated instability north of the warm front. Strongest storms may contain hail and briefly gusty winds and the overall svr wx threat later today looks marginal. Scattered convection is also likely to develop very late tonight and Wednesday morning along and just ahead of the approaching strong cold front. It is noted that the CAMs are not bullish on convection. This is likely tied to unfavorable frontal timing for our area and that the most favorable upper level dynamics stay north also stay north of our area. However we think the CAMs may be underdone with convection given ample low level moisture and strong omegas with the cold front in conjunction with favorable kinematics and as deep layer shear increases to 30-40 kts. Given all this I would not be surprised if we had a few severe storms late Tuesday night into Wednesday. - Much cooler late this week - Strong caa will occur after fropa and h8 temps will plummet to around 2 C by midday Thursday. Max temps will struggle to reach the lower 60s by Thur/Fri with mins mainly in the 40's but some colder readings in the 30s across our north/ne area. Lake induced rain showers are also forecast Thursday mainly west of US-131 given the nw to nnw flow regime and very high delta t/s. Temps will moderate a bit for the weekend and return to near normal for this time of year. && .AVIATION...(For the 12Z TAFS through 12Z Wednesday morning) Issued at 736 AM EDT Tue Sep 20 2022 The area of showers in thunderstorms tracking along a warm front in Wisconsin is projected to weaken and roll into Southwest Lower MI this morning as it moves away from the most favorable instability. For now...we featured a few hours of VCTS for KMKG this morning. Then the atmosphere is forecast to destabilize again this afternoon into the evening. An isolated storm or two could develop. Confidence is low as the location of any storms that do develop but we will need to monitor the latest trends. A cold front does drop in from the northwest Wednesday morning. A few storms could develop along and/or ahead of this feature. Again...confidence on the location of any storms is low late tonight into Wednesday so they have not been included in the forecast at this time. && .MARINE... Issued at 310 AM EDT Tue Sep 20 2022 Winds and waves will ramp up today as southerly flow strengthens. There still is not a good consensus in the high res models in terms of how strong winds will become later today. Some of the guidance seems overdone with wind speeds likely as a result of an mcv forecast to move ese across central Lake MI later this morning. This probably will not happen since only showers are noted across central WI with no signs of convective development. Northwest flow cold air advection after fropa will result in wave heights hazardous to small craft Wednesday through Thursday. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. LM...None. && DISCUSSION...Laurens AVIATION...MJS MARINE...Laurens
Hazardous Weather Outlook National Weather Service Grand Rapids MI 318 AM EDT Tue Sep 20 2022 MIZ037>040-043>046-050>052-056>059-064>067-071>074-210730- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 318 AM EDT Tue Sep 20 2022 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight There is a chance for showers and storms later today through tonight. Small hail and briefly gusty winds are possible but severe weather is unlikely. Patchy dense fog is expected early this morning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms Wednesday morning and a few strong to severe storms are possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed early Wednesday morning. LMZ844>849-210730- 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- 318 AM EDT Tue Sep 20 2022 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight There is a chance for showers and storms later today through tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms Wednesday morning and a few strong to severe storms are possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed early Wednesday morning.
The Grand Rapids radar (KGRR), 98 km away, was scanning. The volume nearest the first event began at 16:54 UTC.
1 thunderstorm wind. Local standard time, as filed.
An isolated severe storm near Lawrence produced one inch diameter hail and brought down a tree.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2022Every state in 2022This day in weather historyWarnings in Michigan, September 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1056093.