Strong winds caused by a wake low from a decaying thunderstorm complex caused damage over south central Upper Michigan on the morning of the 25th.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 MQT wrote it up.
Strong winds caused by a wake low from a decaying thunderstorm complex caused damage over south central Upper Michigan on the morning of the 25th.
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 Marquette, MI wrote its last area forecast discussion before the first event at Jun 25, 3:01 AM CST, 44 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Marquette MI 501 AM EDT Tue Jun 25 2024 .KEY MESSAGES... -Non-severe thunderstorms push east through this morning. -Today will be a warm and windy day, with highs around 80 and wind gusts up to 30-40 mph in the west. -Pattern remains active, especially from late week into early next week, with yet more rounds of showers and storms && .SHORT TERM /THROUGH TONIGHT/... Issued at 500 AM EDT Tue Jun 25 2024 Thunderstorms are ongoing this morning throughout western and central Upper Michigan. A few of these storms have been producing hail, though the largest report thus far has been pea sized hail in Ironwood. Perhaps more perplexing has been the wind gusts, with storms on Isle Royale and the Keweenaw Peninsula gusting above 50 mph, though the wind threat has fallen significantly since the time storms initially passed through that area. These showers and thunderstorms are forecast to continue pushing east through the rest of the morning, with 00Z HREF hourly PoPs falling below 30% UP-wide by 14Z. As winds veer westerly behind the front, soundings show a 30+ kt jet at 850mb that can be mixed into, leading to a gusty day expected, especially over the west and particularly the Keweenaw. By 21Z, the HREF shows 70-100% chances of wind gusts over 30 mph over the west half and along Lake Superior in the east, with the Keweenaw showing 40-90% probabilities of gusts over 40 mph. It will also be a warm day, with MOS guidance showing wide swaths of the south-central UP reaching into the mid 80s for highs today, with the NBM showing about a 25% chance that the M-35 corridor from Escanaba to Menominee could touch 90 today. Overnight, clear skies will begin to cloud up some, though enough radiational cooling should occur to allow low temperatures to fall below 50 away from the Great Lakes. A very subtle 500mb shortwave will be pushing southeast from northwest Ontario, reaching the western UP by 12Z Wednesday. Just enough forcing and moisture will be present for slight-chance (15-30%) PoPs over the west half, though precipitation will be struggling against the near-1015 surface high pressure present at the time, so impacts of any showers will be light, if any. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... Issued at 408 AM EDT Tue Jun 25 2024 Starting Wednesday, a northwest flow shortwave and associated cold front moves from the Northern Plains across the Upper Great Lakes. Most of the models show an inverted sfc trough inflection associated with the shortwave from northern WI along the U.P. border. Instability is limited at 200 j/kg or less so expect isolated to scattered showers Wednesday, probably focused mainly west and along the WI border where the inverted sfc trough axis is situated. Expect drying and clearing skies from the west and north behind the shortwave trough and cold front in the afternoon into early evening as highs peak mainly in the 60s. However, those near the eastern Lake Superior shores may stay in the 50s throughout the day. Weak high pressure ridging persists across the region from Wed night into at least Thu evening, dry weather prevails. Under clear skies and near calm winds, radiative cooling will drop Wed night lows into the 40s, coolest over the interior. Expect highs Thu generally in the lower to mid 70s. Meanwhile, a trough just east of the Pacific northwest will move onshore Wednesday night. This trough progresses east along the international border toward the Upper Great Lakes by Saturday morning with at least a couple of shortwaves embedded in it. This will support cyclogenesis in the northern Rockies Thursday night with the low ejecting east into northern Ontario Friday night/Saturday. WAA/isentropic ascent and theta-e advection ahead of the low will support showers and thunderstorms spreading into Upper Mi on Friday. The first of the shortwaves within the mid-level trough moves through Sat which pushes a cold front through the area Fri night into Sat. Increased instability noted along the cold front should increase chances for thunder as it moves through the area at this time. The second shortwave in the trough will send a secondary cold front and another round of showers across the area late Sat into early Sun along with a burst of gustier nw-n winds and colder temps. High pressure building in quickly behind the front will result in drier, albeit cooler conditions Sunday afternoon into Monday. Models advertise another shortwave and associated sfc low lifting off the Northern Rockies and tracking e across the Northern Plains and Canadian Prairies into the Upper Great Lakes for early next week. This feature will bring another round of showers/t-storms into the area for next Mon night into Tuesday. && .AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 129 AM EDT Tue Jun 25 2024 VFR conditions will prevail early this period, followed by a rapid deterioration as a line of thunderstorms moves into Upper Michigan. Expecting most activity between 06Z and 11Z, with the greatest potential for severe winds, maybe some large hail, at KIWD early on in the event. Expect ceilings to fall to MVFR/IFR after the line moves through with some brief fog/mist developing before the sunrise. Tuesday, gusty winds are expected to develop as ceilings improve. Initial thoughts are KCMX could gust near 30kts from the west. LLWS will occur overnight at IWD and SAW. && .MARINE... Issued at 408 AM EDT Tue Jun 25 2024 Thunderstorms tracking across eastern Lake Superior along a cold frontal passage will bring somewhat gusty winds and lightning to mariners over the eastern lake early this morning. Winds will shift from southerly to westerly winds behind the cold front later this morning while gusting as high as 30 kts. Strongest winds are expected over the central portion of the lake as fcst soundings and model guidance suggest a (20-30%) potential for west gale gusts to 35 knots, especially at higher platform locations like Stannard Rock. This period of longer fetch and stronger winds will help waves build up to 4-6 feet this afternoon and evening north of the Keweenaw. Winds around 20-25 kts veer north tonight behind an additional cold front that drops south across the lake before tapering off below 20 kts Wednesday morning. With high pressure over the lake through Thursday, winds are expected to mainly remain below 20 kts. A weakening low pressure tracking through the Upper Great Lakes early this weekend will allow for s-se gusts near 20 kt Friday and 20-25 kt nw gusts behind a cold frontal passage Saturday before building high pressure returns Sunday and ushers in lighter winds. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...GS LONG TERM...Voss AVIATION...07 MARINE...Voss
Hazardous Weather Outlook National Weather Service Marquette MI 406 AM EDT Tue Jun 25 2024 MIZ001>007-009>014-084-085-260815- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 406 AM EDT Tue Jun 25 2024 /306 AM CDT Tue Jun 25 2024/ This Hazardous Weather Outlook is for portions of central Upper Michigan and western Upper Michigan. .DAY ONE...Today and Tonight Thunderstorms will continue to push east through the morning. There is a high swim risk for the Lake Michigan beaches of Schoolcraft County. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a moderate swim risk for the Lake Superior beaches of Alger County Wednesday morning. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any observed hail or wind damage from thunderstorms to the National Weather Service in Marquette. The public may also submit reports to the National Weather Service via phone, on our website, or through Facebook or Twitter. LSZ162-240>251-263>267-260815- Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM-Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- Point Isabelle to Lower Entrance of Portage Canal MI- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays-Huron Islands to Marquette MI- Marquette to Munising MI-Munising to Grand Marais MI- Grand Marais to Whitefish Point MI- Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park- Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border- Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore- Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore- Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border- 406 AM EDT Tue Jun 25 2024 /306 AM CDT Tue Jun 25 2024/ This Hazardous Weather Outlook is for portions of Central Lake Superior...Eastern Lake Superior and Western Lake Superior. .DAY ONE...Today and Tonight Thunderstorms will continue to push east through the morning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any observed hail or wind damage from thunderstorms to the National Weather Service in Marquette. The public may also submit reports to the National Weather Service via phone, on our website, or through Facebook or Twitter. LMZ221-248-250-260815- Green Bay North of line from Cedar River MI to Rock Island Passage-Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 406 AM EDT Tue Jun 25 2024 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Today and Tonight Thunderstorms are possible this morning. .DAYS TWO THROUGH SEVEN...Wednesday through Monday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report any observed hail or wind damage from thunderstorms to the National Weather Service in Marquette. The public may also submit reports to the National Weather Service via phone, on our website, or through Facebook or Twitter. GS
Special Weather Statement
National Weather Service Marquette MI
129 AM CDT Tue Jun 25 2024
MIZ012-250715-
Menominee MI-
129 AM CDT Tue Jun 25 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN MENOMINEE COUNTY
THROUGH 215 AM CDT...
At 129 AM CDT, Doppler radar was tracking a strong thunderstorm near
Pound, or 13 miles west of Marinette, moving northeast at 40 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Menominee, Stephenson, Cedar River, Arthur Bay, Wallace, Ingalls,
Wells State Park, Carbondale, and Birch Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4519 8774 4528 8770 4534 8765 4539 8769
4538 8771 4556 8742 4546 8723 4541 8726
4540 8736 4529 8744 4516 8759 4512 8761
4511 8766
TIME...MOT...LOC 0629Z 239DEG 35KT 4513 8791
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH
07Special Weather Statement
National Weather Service Marquette MI
143 AM CDT Tue Jun 25 2024
MIZ012-250730-
Menominee MI-
143 AM CDT Tue Jun 25 2024
...STRONG THUNDERSTORMS WILL IMPACT CENTRAL MENOMINEE COUNTY THROUGH
230 AM CDT...
At 142 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles east of Wausaukee to 10 miles south of
Marinette. Movement was northeast at 40 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Marinette, Menominee, Stephenson, Cedar River, Bagley, Wilson,
Nadeau, Gourley, Daggett, Carney, Swanson, Ingalls, Wells State Park,
Birch Creek, Banat, Arthur Bay, Wallace, and Carbondale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4511 8767 4519 8774 4537 8766 4539 8770
4535 8776 4535 8783 4540 8786 4582 8733
4555 8733 4556 8726 4567 8717 4558 8712
4541 8726 4540 8736 4529 8744 4516 8759
4509 8761
TIME...MOT...LOC 0642Z 227DEG 37KT 4535 8780 4494 8762
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
07Special Weather Statement
National Weather Service Marquette MI
201 AM CDT Tue Jun 25 2024
MIZ011-012-250730-
Dickinson MI-Menominee MI-
201 AM CDT Tue Jun 25 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN DICKINSON AND NORTHERN
MENOMINEE COUNTIES THROUGH 230 AM CDT...
At 200 AM CDT, Doppler radar was tracking a strong thunderstorm near
Iron Mountain, moving east at 50 mph.
HAZARD...Pea size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Iron Mountain, Kingsford, Norway, Hermansville, La Branche, Wilson,
Niagara, Whitney, Waucedah, Quinnesec, Loretto, Vulcan, and Cunard.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4572 8785 4575 8788 4576 8798 4579 8800
4578 8804 4579 8808 4587 8809 4587 8807
4588 8809 4591 8809 4597 8737 4570 8733
TIME...MOT...LOC 0700Z 267DEG 42KT 4583 8798
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH
07Special Weather Statement
National Weather Service Marquette MI
310 AM EDT Tue Jun 25 2024
MIZ004-005-250745-
Marquette MI-Baraga MI-
310 AM EDT Tue Jun 25 2024
...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN MARQUETTE AND BARAGA
COUNTIES THROUGH 345 AM EDT...
At 309 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Gay to near Covington. Movement was east
at 60 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
L'anse, Covington, Michigamme, Champion, Alberta, The Huron Islands,
Skanee, Big Bay, Lake Michigamme, Three Lakes, Humboldt, Canyon
Falls, King Lake, Watton, Silver Lake Basin, Mount Arvon, Mountain
Lake, Herman, Island Lake, and Van Riper State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4703 8818 4703 8797 4695 8784 4690 8762
4678 8749 4642 8780 4653 8867 4717 8811
TIME...MOT...LOC 0709Z 274DEG 52KT 4720 8805 4659 8858
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
07Special Weather Statement
National Weather Service Marquette MI
336 AM EDT Tue Jun 25 2024
MIZ005-250800-
Marquette MI-
336 AM EDT Tue Jun 25 2024
...STRONG THUNDERSTORMS WILL IMPACT CENTRAL MARQUETTE COUNTY THROUGH
400 AM EDT...
At 335 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles east of The Huron Islands to
Michigamme. Movement was east at 55 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Marquette, Ishpeming, Presque Isle, Negaunee, Michigamme, Champion,
Little Presque Isle, Trowbridge Park, West Ishpeming, Harvey, Big
Bay, Lake Michigamme, Sands, Humboldt, Beaver Grove, Van Riper State
Park, The 553 and 480 Crossroads, Sugarloaf Mountain, Silver Lake
Basin, and Halfway Village.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4690 8762 4677 8748 4678 8735 4657 8726
4657 8722 4641 8733 4648 8812 4652 8812
4694 8783
TIME...MOT...LOC 0735Z 270DEG 47KT 4696 8782 4655 8809
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
07Special Weather Statement
National Weather Service Marquette MI
351 AM EDT Tue Jun 25 2024
MIZ005-250815-
Marquette MI-
351 AM EDT Tue Jun 25 2024
...STRONG THUNDERSTORMS WILL IMPACT CENTRAL MARQUETTE COUNTY THROUGH
415 AM EDT...
At 351 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles east of Big Bay to 7 miles southeast of
Champion. Movement was east at 60 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Marquette, Ishpeming, Presque Isle, Negaunee, K. I. Sawyer Airport,
Little Presque Isle, Trowbridge Park, West Ishpeming, Harvey, Gwinn,
Sands, Skandia, Shot Point, Beaver Grove, The 553 and 480 Crossroads,
Sugarloaf Mountain, Halfway Village, Palmer, Diorite, and National
Mine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4648 8695 4651 8696 4653 8701 4650 8712
4627 8712 4636 8796 4686 8758 4677 8748
4678 8735 4657 8726 4660 8696 4656 8688
TIME...MOT...LOC 0751Z 272DEG 51KT 4686 8753 4643 8787
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
07The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
Facebook reports of trees and power lines down in Iron Mountain from strong wake low winds. One picture showed a heavily damaged car from one of the fallen trees. Power was out for several hours during the early morning.
Several public reports of numerous trees and powerlines down from Daggett and Cedar River to Carbondale from strong wake low winds that lasted approximately a half hour.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2024Every state in 2024This day in weather historyWarnings in Michigan, June 2024
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: 1184561, 1184562.