An isolated severe thunderstorm produced up to one inch diameter hail.
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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 produced up to one inch diameter hail.
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 May 10, 12:36 AM EST, 1 hour 54 minutes earlier.
Area Forecast Discussion National Weather Service Grand Rapids MI 136 AM EDT Tue May 10 2022 LATEST UPDATE... Aviation .UPDATE... Issued at 1054 PM EDT Mon May 9 2022 A line of showers and thunderstorms is located across portions of Central Wisconsin southwest into Iowa at 1045 pm. This line will likely dissipate upstream of Western Lower Michigan tonight given the loss of daytime heating and therefore overall instability. A few isolated showers will be possible late tonight and into Tuesday morning up near Big and Little Sable Points. Both 850mb moisture transport and the low level jet itself diminish considerably as the convection moves our way. So, have 20 percent chance pops for an isolated shower or storm around daybreak. Otherwise and increase in clouds will be noted as convective cirrus debris clouds move our way. In addition, models continue to want to bring some lower clouds into the area tonight and this can be seen occurring in Eastern Wisconsin and Western Lake Michigan at this time. && .DISCUSSION...(This evening through next Monday) Issued at 227 PM EDT Mon May 9 2022 - Increased potential for some thunderstorms Tue Night to Wed Models were showing a weak cold front approaching from the northwest later Tuesday night into Wednesday. The atmosphere is forecast to become rather unstable along and ahead of this front with projected CAPE values topping 1500 J/kg here in the CWA. The low level jet is not in a favorable position for us to see numerous showers and storms. The CWA is mostly in the entrance region of the low level jet. Still...if some storms could get going upstream in eastern WI later Tuesday...the may have enough momentum to roll into west MI later Tuesday night into Wednesday before diminishing. We will increase the coverage of the thunderstorm potential as several models like the 12z HRRR have trended toward more convection. - Well above normal temperatures expected into the weekend While any diminishing convection and associated debris clouds could lead to an increased uncertainty of max temperatures(mainly Wednesday)...the period overall looks very warm. Part of the reason for this will be the moderating overnight temperatures. As surface dewpoints eventually climb into the 60s...the overnight lows will remain relatively warm...thereby give each day a higher start to the diurnal rise. We are already about 10 degrees warmer than normal today. The warm air advection persists for most of the week. The warmest 850 mb temperatures are progged to occur on Friday with values around 20 deg C. This bump in warmer air occurs ahead of an approaching cold front. With a decent amount of sunshine expected we should be able to mix to that level which would support high temperatures in the upper 80s to near 90 away from the lakeshore. - Highest chance for storms is Saturday night Models are in relatively decent agreement in tracking stronger mid level wave and associated cold front through the area Saturday night. The organized lift combined with an axis of instability should lead to at least scattered thunderstorms. The timing is not favorable for severe weather especially with the diminishing instability...but that will need to be monitored. && .AVIATION...(For the 06Z TAFS through 06Z Tuesday night) Issued at 121 AM EDT Tue May 10 2022 A weakening trend is expected with storms across Wisconsin overnight, but there is a risk for residual SHRA to impact MKG between 10z and 12z. More extensive cloud cover is likely today but VFR/MVFR should hold. Trends will need to be monitored closely for shower and thunderstorm development after 00z tonight as high resolution models are favoring activity to be developing into western Lower MI, bringing higher odds for TSRA to MKG and GRR than the other terminals. For now, will mention SHRA at the terminals with some reduction to visibility. && .MARINE... Issued at 1054 PM EDT Mon May 9 2022 We extended the Small Craft Advisory through 800 AM. A strong core of winds aloft is mixing down in the nearshore waters with numerous sites reporting wind gusts between 20 and 30 knots. The Ludington Buoy has now seen waves increase to around 4 feet. We may need to extend the advisory into the midday hours of Tuesday to allow for the waves to dampen out. 40-50 knot winds are in the core aloft at this time around 2,000ft. By midday on Tuesday winds in the lowest 5,000ft should be 20 knots or less. && .FIRE WEATHER... Issued at 227 PM EDT Mon May 9 2022 Surface temperatures have risen into the mid 70s for many locations in the Red Flag Warning area. Southeast winds were gusting mostly in the 25 to 30 knot range. The humidity values were generally between 25 to 35 percent...which is a little shy of the criteria. We still have a few more hours to go and the humidity will likely lower another 5 percent or so. We will keep the headline going given the forecast conditions. Looking ahead...the surface dewpoints and associated humidity levels will be higher for Tuesday. This occurs as a cold front approaches in from the northwest. As a result...no fire weather headlines are planned for Tuesday. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. LM...Small Craft Advisory until 8 AM EDT this morning for LMZ844>849. && UPDATE...Duke DISCUSSION...MJS AVIATION...Hoving FIRE WEATHER...MJS MARINE...Duke
Hazardous Weather Outlook National Weather Service Grand Rapids MI 903 PM EDT Mon May 9 2022 MIZ037>040-043>046-050>052-056>059-064>067-071>074-110115- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 903 PM EDT Mon May 9 2022 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Thunderstorms will be possible Tuesday evening into Tuesday night across Western Lower Michigan. Severe weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. LMZ844>849-110115- 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- 903 PM EDT Mon May 9 2022 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Tonight Conditions will be hazardous to smaller craft through tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Dense fog will be possible at times on Lake Michigan from at least Tuesday into Wednesday, if not through the work week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. DUKE
Special Weather Statement National Weather Service Grand Rapids MI 325 AM EDT Tue May 10 2022 MIZ051-052-058-059-100830- Montcalm MI-Clinton MI-Gratiot MI-Ionia MI- 325 AM EDT Tue May 10 2022 ...A strong thunderstorm will impact portions of southern Gratiot, eastern Ionia, western Clinton and southeastern Montcalm Counties through 430 AM EDT... At 325 AM EDT, Doppler radar was tracking a strong thunderstorm 7 miles east of Ionia, moving northeast at 25 mph. HAZARD...Nickel size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Ionia... Portland... Ithaca... Grand Ledge... Lake Odessa... Carson City... Sumner... Fowler... Sebewa... North Star... Westphalia... Lyons... Maple Rapids... Muir... Mulliken... Pewamo... Perrinton... Hubbardston... Eagle... Wacousta... PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 4277 8472 4277 8521 4336 8481 4335 8440 TIME...MOT...LOC 0725Z 212DEG 20KT 4300 8491 MAX HAIL SIZE...0.88 IN MAX WIND GUST...<30 MPH MEADE
The Grand Rapids radar (KGRR), 59 km away, was scanning. The volume nearest the first event began at 07:28 UTC.
1 hail. Local standard time, as filed.
Up to one inch diameter hail was reported across portions of Ionia county late in the evening.
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, May 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: 1026718.