A warm and unstable air mass ahead of an approaching cold front generated severe thunderstorms over portions of western Upper Michigan during the afternoon and early evening of the 5th.
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.
A warm and unstable air mass ahead of an approaching cold front generated severe thunderstorms over portions of western Upper Michigan during the afternoon and early evening of the 5th.
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 5, 3:04 PM CST, 6 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Marquette MI 504 PM EDT Wed Jun 5 2024 .KEY MESSAGES... - Some high-base showers and thunderstorms look to develop over the western half of the U.P. this evening. A strong thunderstorm or two with gusty winds and hail is possible. - Showery weather and much cooler conditions expected Thursday through the weekend under the influence of low pressure. && .SHORT TERM /THROUGH THURSDAY NIGHT/... Issued at 323 PM EDT Wed Jun 5 2024 GOES-16 Visible imagery shows clearing skies along the MI/WI state line behind an advancing cold front, with the band of rain showers from that front now mainly confined to the eastern half of the UP. Through 1830Z, the only electrically active storm has been a sub- severe cell that started in southern Menominee County and has transited the Bay of Green Bay and is imminently arriving at the Garden Peninsula. Under cloudy skies for much of the day, highs are around 10 degrees cooler than yesterday, mainly in the low 70s. Attention turns upstream this evening to the clearing in the west, which already is showing signs of some cu development supported by diurnal heating and a secondary shortwave evident on RAP Analysis 500mb heights. The 12Z HREF showed much less available instability relative to yesterday's storms with only around 500-1000 J/kg of SBCAPE available. Shear is right around what it was yesterday with around 20 kt of effective bulk shear and 50-100 0-3km SRH. It is worth noting that while instability is surface-based, the depth of the mixed layer at the surface is around 6,000 ft, so cloud bases are going to be relatively high. Reflectivity paintball plots in the HREF show that CI will begin in northern Wisconsin and push east into the UP around 20Z, somewhat losing energy as it progresses and maintaining cellular form. Thinking hazards are once again isolated damaging wind gusts and pea to quarter sized hail from "core dumps". Less total precipitation is expected with this round of showers, with HREF mean 6-hourly precipitation only around 0.2-0.4 inches. In the wake of showers, lows look to fall to the 50s tonight, with winds staying out of the west. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... Issued at 504 PM EDT Wed Jun 5 2024 Flow over and around N America through early next week will feature pronounced high latitude blackness. Through the remainder of this week and into the weekend, building mid-level ridging/positive height anomalies, first from ne through n central Canada and across the Arctic Ocean, and then over western N America will force mid-upper level troughing to develop from s central Canada across the Great Lakes/eastern U.S. This troughing will also force the mid-level low now over northern Saskatchewan/Manitoba to descend across the Great Lakes region beginning Thu. For Upper MI, this pattern evolution will lead to periods of showery weather and a period of blo normal temps (seasonably cool) thru early next week. However, the large scale pattern does suggest the potential of unseasonably cool days in the mix, particularly on Thu. Models have lacked run-to-run consistency and have been and continue to be quite varied on the details of the flow affecting Upper MI. So, the pcpn fcst has much more uncertainty than normal. Overall, expect many areas to be dry much of the time as showers are likely to be scattered in coverage on most days. Thu is likely to be the day with the most numerous shower coverage. With the mid-level trough weakening and shifting e early next week, dry and warmer weather is more likely to prevail for the first half of next week, although a few of the 00z models hint at another wave moving through the area in the Tuesday- Wednesday time frame that may bring the potential for some light shower activity. Beginning Thursday, the mid-level low now over central Canada will dive se across the Upper Great Lakes by Thu. A shortwave attached to the mid-level low circulation will track from northern MN se across Upper Mi in the late morning/afternoon. Forcing associated with this feature combined with the start of daytime heating will support a rapid development/expansion of showers during the morning. The showers should diminish in coverage over the w in the aftn in the wake of the wave. Considerable cloud cover will limit daytime heating/instability, so thunder potential is overall minimal. Fcst will only include a mention of thunder over the e and se fcst area due to a little more instability potential there before clouding over and development of widespread showers. Under considerable cloudiness, passing showers, rather stiff wnw winds and a 850mb thermal trough driving se into the area, it will be unseasonably cool for much of the area. Highs in the 50s F will likely be the rule across the w through n central ranging up to the lower/mid 60s F s central/se. Lakeside locations exposed to wnw winds across Lake Superior may not see max temps above 50F. W side of the Keweenaw likely to be coolest. Showers will diminish Thu night in the wake of shortwave, but won't end, particularly over the e where showers may keep going in response to some isentropic ascent as warmer air to the n and ne weakly advects toward the thermal troffing over the area. On Fri, center of mid-level low drifts e toward southern Ontario. Weak shortwave ridging develops into western Upper MI between that low and another mid-level low over s central Canada. This is suggestive of fewer showers over western Upper MI on Fri compared to Thu, with more areas likely to be dry through the day. To the e, closer to the mid-level low, shower coverage will be greater. High temps on Fri will be coolest over the e where more clouds/shra are expected. Mid 50s to around 60F expected there. Low/mid 60s expected to the w, except closer to Lake Superior where temps will be in the 50s. Sat, models seem to be coming into a little bit better agreement on a shortwave trough moving through the area. MLCAPE values of 100-300 j/kg could maybe even support a rumble of thunder along the WI border and south central late morning into the afternoon. Expect scattered shower coverage with highs generally in the 60s, except for some 50s readings near Lake Superior in a continued nw flow. Sun, although model consistency isn't great on exact details most of the models hint at another shortwave/mid-level trough axis moving through the area in the Sat night into Sunday time frame. Would expect at least isolated showers from feature perhaps aided by some weak isentropic ascent from the north as winds shifting from nw to n bring a pocket of warmer 850 mb air into the area. North flow off Lake Superior will result in 50s readings near the lake while 60s readings will be more common inland. With medium range models trending toward more ridging building over the area on Monday behind the exiting mid-level trough, would expect drier and warmer conditions on Monday with highs mostly in the 60s to lower 70s, with warmest readings inland toward the WI border. Models and ensembles then hint at a shortwave trough moving through in the late Tue into Wed time frame which could result in at least isolated showers again. Temps are expected to rebound to around normal values for this time of year with highs mainly in the 70s Tue into Wed. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 134 PM EDT Wed Jun 5 2024 VFR prevails at all TAF sites to begin this afternoon. -SHRA has moved out of IWD and CMX with SAW forecast to also clear out of precip in the next hour or two. This evening, a second wave of showers is expected to move in from the west, with some stronger TSRA possible at IWD. VFR is expected to prevail through these SHRA/TSRA. In the morning hours, low (20-40%) SHRA chances return to the forecast along with likely (50+%) reductions in ceiling height to MVFR, though models have trended later with the onset of MVFR conditions over the last few model cycles. Expect winds to remain primarily out of the west, occasionally gusty. && .MARINE... Issued at 504 PM EDT Wed Jun 5 2024 A low pressure trough moving in from the west could lead to a few stronger thunderstorms developing over MN and moving out across western Lake Superior late this afternoon/evening, posing a risk of locally strong wind gusts. Late tonight continuing into Fri, steady w to wnw winds generally at around 20kt with occasional gusts to 30kt will set in from w to e with the highest gusts over the east half. A slight diminishing of winds will occur over the weekend with sustained speeds falling back to around 15kt as winds shift from northwest to north-northwest on Sunday. North winds should diminish blo 15 kts on Monday as a high pressure ridge builds in from the northwest. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...GS LONG TERM...Voss AVIATION...GS MARINE...Voss
Hazardous Weather Outlook National Weather Service Marquette MI 354 PM EDT Wed Jun 5 2024 MIZ001>007-009>014-084-085-062000- Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger-Luce- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- 354 PM EDT Wed Jun 5 2024 /254 PM CDT Wed Jun 5 2024/ This Hazardous Weather Outlook is for portions of central Upper Michigan and western Upper Michigan. .DAY ONE...Tonight Thunderstorms are possible this evening. A thunderstorm or two over the western half late this afternoon could be strong and produce gusty winds up to 50 mph and sub-severe hail. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Thunderstorms are possible over the east half Thursday. .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>267-062000- 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- 354 PM EDT Wed Jun 5 2024 /254 PM CDT Wed Jun 5 2024/ This Hazardous Weather Outlook is for portions of Central Lake Superior...Eastern Lake Superior and Western Lake Superior. .DAY ONE...Tonight Thunderstorms are possible this evening. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. LMZ221-248-250-062000- 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- 354 PM EDT Wed Jun 5 2024 This Hazardous Weather Outlook is for portions of Northern Lake Michigan. .DAY ONE...Tonight Thunderstorms are possible today into this evening. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Thunderstorms are possible Thursday. .SPOTTER INFORMATION STATEMENT... The need for weather spotter reports is not anticipated at this time. GS
Preliminary Local Storm Report
National Weather Service Marquette MI
217 PM EDT Wed Jun 5 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0618 AM Rain 1 E Hurley 46.45N 90.17W
06/05/2024 M1.05 Inch Gogebic MI Public
Delayed report. Rainfall since midnight.
&&
JSSSpecial Weather Statement
National Weather Service Marquette MI
418 PM EDT Wed Jun 5 2024
MIZ010-084-052030-
Southern Houghton MI-Iron MI-
418 PM EDT Wed Jun 5 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL IRON AND SOUTH
CENTRAL HOUGHTON COUNTIES THROUGH 430 PM EDT/330 PM CDT/...
At 410 PM EDT/310 PM CDT/, Doppler radar was tracking a strong
thunderstorm near Kenton, or 25 miles north of Iron River, moving
east at 25 mph.
HAZARD...Winds in excess of 30 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.
This storm will remain over mainly rural areas of north central Iron
and south central Houghton Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4650 8868 4642 8868 4642 8864 4638 8863
4640 8890 4645 8891
TIME...MOT...LOC 2010Z 262DEG 20KT 4644 8882
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
EKSpecial Weather Statement
National Weather Service Marquette MI
424 PM EDT Wed Jun 5 2024
MIZ002-052045-
Ontonagon MI-
424 PM EDT Wed Jun 5 2024
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL ONTONAGON COUNTY THROUGH
445 PM EDT...
At 424 PM EDT, Doppler radar was tracking a strong thunderstorm 8
miles west of Rockland, or 11 miles south of Ontonagon, moving east
at 30 mph.
HAZARD...Winds in excess of 30 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...
Rockland, Norwich, and Victoria Dam.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4688 8920 4667 8908 4663 8940 4674 8947
TIME...MOT...LOC 2024Z 248DEG 26KT 4670 8935
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
EKSpecial Weather Statement
National Weather Service Marquette MI
430 PM EDT Wed Jun 5 2024
MIZ004-084-052045-
Baraga MI-Southern Houghton MI-
430 PM EDT Wed Jun 5 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL HOUGHTON AND
SOUTHWESTERN BARAGA COUNTIES THROUGH 445 PM EDT...
At 430 PM EDT, Doppler radar was tracking a strong thunderstorm near
Sidnaw, or 18 miles southwest of Baraga, moving east at 25 mph.
HAZARD...Winds in excess of 30 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...
Covington and Watton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4653 8881 4659 8882 4669 8851 4652 8847
TIME...MOT...LOC 2030Z 259DEG 22KT 4657 8874
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH
EKThe Duluth radar (KDLH), 163 km away, was scanning. The volume nearest the first event began at 21:10 UTC.
7 thunderstorm wind, 1 hail. Local standard time, as filed.
Law enforcement dispatch reported a tree snapped and lying on a rooftop in the city of Ironwood. Time of the report was estimated from radar.
Law enforcement dispatch reported three trees snapped in North Ironwood. Time of the report was estimated from radar.
A NWS student volunteer in Ironwood reported a large diameter maple tree of one foot in diameter snapped in Ironwood. Time of the report was estimated from radar.
Law enforcement dispatch reported a tree down in Bessemer. Time of the report was estimated from radar.
There was a public report of a tree down on Atlantic Street west of Birch Street in Hancock. The report was relayed by a local broadcasting partner.
Media reported a whole tree down in West Hancock that fell partially onto Minnesota Street. Report relayed by WLUCTV6.
There was a social media report of a large diameter maple branch snapped in Hancock.
There was a social media report of hail in Hancock, the largest of which was penny sized.
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: 1184096, 1184097, 1184098, 1184099, 1184062, 1184075, 1184081, 1184092.