An upper disturbance moving through an unstable and highly-sheared environment triggered severe thunderstorms over portions of central Upper Michigan on the afternoon of the 13th.
Every event with a place to put it. 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.
An upper disturbance moving through an unstable and highly-sheared environment triggered severe thunderstorms over portions of central Upper Michigan on the afternoon of the 13th.
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 13, 10:04 AM EST, 1 hour 39 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Marquette MI 1104 AM EDT Thu Jun 13 2024 .KEY MESSAGES... - Gusty northwest winds are expected today along with additional chances for isolated showers and thunderstorms. There is a marginal risk (category 1/5) of severe weather for most of the UP, with the main threats being large hail in excess of an inch and damaging winds in excess of 60 mph. - Dry Friday and early Saturday before the return of showers and thunderstorms later in the weekend. - Warmer than normal temperatures frequent the forecast, with some areas approaching 90 for highs by next week. && .SHORT TERM /THROUGH THIS AFTERNOON/... Issued at 514 AM EDT Thu Jun 13 2024 RAP analysis shows a mid level trough over southern Manitoba with a weak low pressure trough at 1004 mb extending over Lake Superior and into the UP. A cold front drapes from western lake superior northeast into northern Ontario. Showers and lingering thunderstorms have almost made their way out of the UP, but dry weather is expected within the next hour as PVA diminishes and this sfc low pressure trough slowly moves east this morning. This dry period is only expected to be brief as mid level trough rotates east through northern Ontario, sending a stream of vorticity south across the UP today. As the sfc low pressure trough progresses east toward Quebec, it deepens and brings the cold front eastward across the UP through early this afternoon. CAMs do not have the greatest agreement on the timing of shower and storm activity today, but there does seem to be a consensus on two periods. The first one being a round progressing east across the UP with the cold front. The second period would be more PVA forced in the later part of the afternoon. The marginal risk for much of the UP seems appropriate for today as neither of these rounds is a home run. Bulk shear of ~50 kts will be sufficient for storms throughout the day, but the best instability (6/13 0z HREF mean SBCAPE to around 1000 J/kg) is expected in the earlier part of the afternoon ahead of mid level lapse rates increasing to near 7C/km. That said, some isolated stronger to severe storms are possible. If any severe storms are able to develop (5% chance), the main threats will be hail and winds. CAA and drier air behind the cold front will allow for some good mixing resulting in some gusty northwest winds. While the 6/13 0z HREF indicates only a 40-60% chance of wind gusts exceeding 30 mph, model soundings do indicate the potential for isolated gusts as high as 40 to even 50 mph. These gusts are not expected to be consistently high enough for an advisory, but it will still be a gusty day. Highs for the most part are expected in the 70s with the south central UP being warmer in the low to mid 80s. The other exception to highs in the 70s would be those near Lake Superior which may only see highs in the 60s. && .LONG TERM /TONIGHT THROUGH WEDNESDAY/... Issued at 547 AM EDT Thu Jun 13 2024 After a few lingering showers/thunderstorms (far south) this evening, high pressure will strengthen over Upper Michigan. This will bring a lull to the active weather and dry conditions for a bit. Meanwhile though, focus will be on a potent cutoff low over the Pacific Northwest and the potential for several rounds of showers and thunderstorms through the weekend/next week ahead and with it. With multiple lifting mechanisms in the pattern, there will still be much ambiguity in regard to timing and strength of storms. The first round, though, is expected to arrive late Saturday as a wave approaches just ahead of a surface low centered over central Manitoba. This disturbance will help to transport moisture from the Gulf and strong WAA ahead of the aforementioned cutoff and surface lows. And, early indications are trending toward a cold front moving through this environment on Sunday. Again, it is still tough to pinpoint the details of the dynamics, but one thing for certain is that there will be a strong warming trend through next week. And, this hints at some unstable environments in place until the timing of the dynamics come into better agreement. Temperatures will already start out above normal on Friday with highs climbing into the low to mid 70s. And, the trend will continue through the weekend with mid to upper 70s and finally mid to upper 80s across portions of the interior by Monday and through the week. So, overall a warm and wetter pattern throughout the extended period. && .AVIATION /12Z TAFS THROUGH 12Z FRIDAY/... Issued at 1102 AM EDT Thu Jun 13 2024 Mainly VFR conditions are expected at all TAF sites for the duration of the 12Z TAF period. The exception to this would be for a period of MVFR to possibly IFR cigs at CMX this morning with northwest upslope flow off Lake Superior. Daytime mixing will support gusty west becoming northwest winds with the current forecast for 25-30kt, but some guidance suggests mixing could support infrequent gusts upwards of 40kts in the afternoon. Some isolated showers and thunderstorms are possible this afternoon mainly at CMX and SAW. With low confidence in timing and coverage, opted to only include VCSH at SAW and CMX for now. Winds taper off this evening as showers diminish. 11AM Update: With CMX holding onto LIFR cigs this morning, I've kept the cigs lower until this afternoon, when the low-level cloud deck looks to slowly scatter out over the Keweenaw. && .MARINE... Issued at 324 AM EDT Thu Jun 13 2024 Southwesterly winds will become west-northwesterly and increase behind a cold front later this morning with gusts of 20 to 25 knots. By Friday, winds will return to less than 20 knots with the return of high pressure where they will stay until early Sunday morning. At that point, the next cold front will bring southerly winds of 20 to 25 knots along with 4 to 5 foot waves along the US/Canada border on Lake Superior. In addition, thunderstorm chances will return to the forecast, but it is too early to determine severity. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...Jablonski LONG TERM...TDUD AVIATION...Jablonski/TAP MARINE...TDUD
Hazardous Weather Outlook National Weather Service Marquette MI 533 AM EDT Thu Jun 13 2024 MIZ001>007-009>014-084-085-140945- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 533 AM EDT Thu Jun 13 2024 /433 AM CDT Thu Jun 13 2024/ This Hazardous Weather Outlook is for portions of central Upper Michigan and western Upper Michigan. .DAY ONE...Today and Tonight Isolated thunderstorms are possible (40% chance), mainly this afternoon. There is a marginal risk (category 1/5) of severe weather for most of Upper Michigan save for the far west, with the main threats being large hail in excess of an inch and damaging winds in excess of 60 mph. Moderate swim risk is expected at Marquette, Alger, and southern Schoolcraft county beaches today. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a chance of thunderstorms on Sunday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LSZ162-240>251-263>267-140945- 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- 533 AM EDT Thu Jun 13 2024 /433 AM CDT Thu Jun 13 2024/ This Hazardous Weather Outlook is for portions of Central Lake Superior...Eastern Lake Superior and Western Lake Superior. .DAY ONE...Today and Tonight Isolated thunderstorms are possible (40% chance), mainly this afternoon over the east half of the lake. There is a marginal risk (category 1/5) of severe weather, with the main threats being large hail in excess of an inch and damaging winds in excess of 50 kts. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a chance of thunderstorms on Sunday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-140945- 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- 533 AM EDT Thu Jun 13 2024 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Today and Tonight Isolated thunderstorms are possible (40% chance), mainly this afternoon. There is a marginal risk (category 1/5) of severe weather, with the main threats being large hail in excess of an inch and damaging winds in excess of 50 kts. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a chance of thunderstorms on Sunday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. Jablonski
Preliminary Local Storm Report
National Weather Service Marquette MI
844 AM EDT Thu Jun 13 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0524 PM Non-Tstm Wnd Gst 1 W Wakefield 46.48N 89.95W
06/12/2024 M46 MPH Gogebic MI Mesonet
Mesonet station MC026 Wakefield MDOT.
0325 PM Non-Tstm Wnd Gst 4 NW Bessemer 46.52N 90.12W
06/12/2024 M37 MPH Gogebic MI AWOS
AWOS station KIWD Ironwood Airport.
0534 PM Non-Tstm Wnd Gst Watersmeet 46.26N 89.18W
06/12/2024 M35 MPH Gogebic MI Mesonet
Mesonet station MC070 Watersmeet MDOT.
1127 PM Non-Tstm Wnd Gst Copper Harbor 47.47N 87.88W
06/12/2024 M35 MPH Keweenaw MI ASOS
ASOS station KP59 Copper Harbor.
0540 PM Non-Tstm Wnd Gst 10 SE Ford River 45.58N 87.00W
06/12/2024 M35 MPH LMZ221 MI Mesonet
Mesonet station XMAPV Minneapolis Shoal.
&&
JSSPreliminary Local Storm Report
National Weather Service Marquette MI
900 AM EDT Thu Jun 13 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 AM Non-Tstm Wnd Gst 1 N Grand Marais 46.68N 85.98W
06/13/2024 M44 MPH LSZ251 MI Mesonet
GLOS Mesonet station GRMM4 Grand Marais
Lakeshore.
&&
JSSPreliminary Local Storm Report...Summary
National Weather Service Marquette MI
903 AM EDT Thu Jun 13 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0524 PM Non-Tstm Wnd Gst 1 W Wakefield 46.48N 89.95W
06/12/2024 M46 MPH Gogebic MI Mesonet
Mesonet station MC026 Wakefield MDOT.
1230 AM Non-Tstm Wnd Gst 1 N Grand Marais 46.68N 85.98W
06/13/2024 M44 MPH LSZ251 MI Mesonet
GLOS Mesonet station GRMM4 Grand Marais
Lakeshore.
0325 PM Non-Tstm Wnd Gst 4 NW Bessemer 46.52N 90.12W
06/12/2024 M37 MPH Gogebic MI AWOS
AWOS station KIWD Ironwood Airport.
0534 PM Non-Tstm Wnd Gst Watersmeet 46.26N 89.18W
06/12/2024 M35 MPH Gogebic MI Mesonet
Mesonet station MC070 Watersmeet MDOT.
1043 PM Tstm Wnd Gst Houghton Co Airport 47.17N 88.48W
06/12/2024 M35 MPH Houghton MI ASOS
ASOS station KCMX Houghton Co. Airport.
1127 PM Non-Tstm Wnd Gst Copper Harbor 47.47N 87.88W
06/12/2024 M35 MPH Keweenaw MI ASOS
ASOS station KP59 Copper Harbor.
0540 PM Non-Tstm Wnd Gst 10 SE Ford River 45.58N 87.00W
06/12/2024 M35 MPH LMZ221 MI Mesonet
Mesonet station XMAPV Minneapolis Shoal.
&&
JSSSpecial Weather Statement
National Weather Service Marquette MI
1229 PM EDT Thu Jun 13 2024
MIZ005-131700-
Marquette MI-
1229 PM EDT Thu Jun 13 2024
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL MARQUETTE COUNTY THROUGH
100 PM EDT...
At 1229 PM EDT, Doppler radar was tracking a strong thunderstorm near
West Ishpeming, or near Ishpeming, moving east at 45 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...
Marquette, Ishpeming, Presque Isle, Negaunee, Little Presque Isle,
Trowbridge Park, West Ishpeming, Harvey, Sands, Shot Point, Beaver
Grove, The 553 and 480 Crossroads, Sugarloaf Mountain, Diorite, and
Palmer.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4649 8784 4667 8780 4664 8729 4657 8726
4659 8712 4658 8710 4637 8715
TIME...MOT...LOC 1629Z 279DEG 38KT 4657 8772
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
TAPThe Marquette radar (KMQT), 10 km away, was scanning. The volume nearest the first event began at 16:45 UTC.
10 hail, 2 thunderstorm wind. Local standard time, as filed.
Quarter-sized hail was reported by local broadcast media near the corner of West Washington Street and South McClellan Avenue in Marquette.
An NWS employee observed dime to quarter-sized hail at the intersection of McClellan Avenue and Grove Street in Marquette.
Dime to quarter-sized hail was observed at NWS Marquette in Negaunee Township.
Penny-sized hail observed in Marquette. Report received via mPING.
Image of half dollar sized hail in Chatham from a social media report.
Law enforcement dispatch reported a downed power line that was smoking along Hayward Road near Sixteen Mile Lake in Alger County.
Report via Facebook southeast of Forest Lake of between dime and quarter-sized hail along with 0.59 inches of rain. Time of the report was estimated from radar.
A public report of observed and measured tennis ball sized hail along White Head Road and Forest Service Highway 13 near the Alger and Schoolcraft County line. Time of the report was estimated from radar.
Estimated golf ball sized hail was observed along National Forest Service Highway 13 along the Alger-Schoolcraft County line.
Report via mPING of penny-sized hail in rural Alger County.
Two-inch diameter hail was reported eight miles west-northwest of Steuben. A photo was sent of a hailstone about 30-45 minutes after it fell so some melting occurred. Time of the report was estimated from radar.
A storm survey of damage six miles northeast of Round Lake in Alger County revealed straight-line wind damage with several one to two-foot diameter trees uprooted or snapped off 15-20 feet above the ground. Maximum wind gusts were estimated to be between 75-80 mph. Half dollar sized hail was also observed at the time of the original report.
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: 1184369, 1184355, 1184357, 1184356, 1184348, 1184350, 1184352, 1184347, 1184358, 1184363, 1184368, 1184361.