Strong northwest winds in the wake of a cold front downed trees and some power lines over portions of Upper Michigan on the 20th.
Every event with a place to put it; 7 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 northwest winds in the wake of a cold front downed trees and some power lines over portions of Upper Michigan on the 20th.
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 20, 12:43 AM EST, 1 hour 17 minutes earlier.
Area Forecast Discussion National Weather Service Marquette MI 143 AM EDT MON JUN 20 2016 .SHORT TERM...(This evening through Monday) Issued at 338 PM EDT SUN JUN 19 2016 Main concerns in short term will be potential convection and possible severe weather along incoming cold front tonight and then gusty winds behind front into Monday. Strong shortwave currently over southern Manitoba will track ne thru northern Ontario tonight. Per q-vector convergence, strong deep layer forcing with this wave will pass well n of the area tonight. Question will be whether the weaker southern extension of this forcing and the attendant cold front and its associated low-level convergence will be enough to break the strong cap over Upper Michigan later tonight. 00z and 12z operational and ensemble model data in remarkable agreement indicating scattered convection developing along cold front in MN late this afternoon/early this evening. Agreement is quite good that this convection will be relatively short-lived with storms probably reaching western Upper MI as they begin to weaken under strong cap and with onset of diurnal cooling/diminishing instability. Will maintain fcst of mostly mid range chc pops spreading into western Upper MI this evening with pops tending to diminish to schc farther e during the night. If storms hold together, western Upper MI will have a risk of severe storms late evening into early overnight with MUCAPE 1000-1500 j/kg and 40-50 knots of deep layer shear. Main threats from any storms will be damaging wind and large hail. Severe potential will diminish farther e and instability gradually wanes. As deepening sfc low lifts from far northern Ontario over Hudson Bay, a tight pressure gradient and pressure rise will lead to gusty west to northwest winds. Mixing to around 800mb will lead to peak gusts in the late morning through afternoon of 25-35 kts over the higher terrain. Model soundings suggest there is a potential for stronger gusts up to 40 kts mainly over the Keweenaw and eastern shoreline areas if momentum transfer from the top of the mixed layer can be realized. Expect the strongest winds will be over the more exposed higher terrain of the Keweenaw in favorable westerly wind flow. The strong and gusty NW winds will lead to building waves and dangerous swimming conditions along the beaches of Alger County on Monday. .LONG TERM...(Monday night through Sunday) Issued at 338 PM EDT SUN JUN 19 2016 Monday night through Tuesday night: the Upper Great Lakes Region will be on the southern edge of a trough that is dug in across much of eastern Canada. At the same time, the western U.S. and western Canada will be under upper level ridging. At the surface, weak high pressure will build into the Upper Great Lakes from the Northern Plains. The combination of the two features, along with dry air will keep conditions a bit cooler; however, temperatures are expected to be near normal through this time period. The only issue during this time period will be the dry air in place along with gusty afternoon winds for Tuesday. Afternoon RH values look to drop into the 30 to 40 percent range across the U.P. Wednesday through Wednesday night: the upper level 500mb trough will linger across eastern Canada while the Upper Great Lakes remains on the southern edge of the trough. During this time period, a weak low pressure system will slide from the Central Plains to the Ohio River Valley. The only impact from this system on the U.P. weather will be an increase in cloud cover near the Wisconsin border and maybe an isolated shower, but the chances of that look pretty slim at this point as the better moisture and forcing are progged to remain south of the area. Again, temperatures are expected to be near normal during this time period. Thursday through Friday: the trough over Canada will begin to slide eastward, allowing 500mb ridging over the west and central U.S. to slide into the Great Lakes. At the surface, high pressure will slide from the Northern Plains into the Upper Great Lakes Region, which will keep mainly dry conditions across the area. A weak shortwave may slide through the area during the day Thursday afternoon into Thursday night, but the dry air in place should keep any shower chances very low across the area and we will likely only see a slight increase in cloud cover. The upper level ridge sliding into the area along with southerly flow on the back side of the surface high, Friday, will allow temperatures to steadily rise above normal. Friday night through Sunday: A low pressure system, progged to be over Saskatchewan Friday evening, is progged to slide to western Ontario by Sunday afternoon. At the same time, a cold front stretching into the Central Plains is expected to slide eastward toward the Upper Great Lakes. There are some timing differences, but models are showing the best time frame for the cold front approach would be late Saturday afternoon in the Saturday evening before exiting to the east by Sunday morning. Along and ahead of the front, showers and thunderstorms can be expected. This is still a ways out to pin down for sure, but there may be some strong to severe storms late Saturday into Saturday night. Again, this will depend largely on the timing of the front and the amount of shear/instability available. && .AVIATION...(For the 06Z TAFS through 06Z Monday night) Issued at 139 AM EDT MON JUN 20 2016 Vfr conditions should prevail at KIWD/KCMX/KSAW through this fcst period under drying low-levels. Although a cold front will be passing overnight, shra/tsra have been diminishing as instability wanes. At this point, no pcpn is expected at any of the terminals. Also of note is low-level jet ahead of cold front which will result in llws at KSAW for the next several hrs. KMQT VAD wind profile currently shows 40kt at 500ft agl. West winds behind the front will become gusty today, especially at KCMX where a few gusts between 35-40 knots are possible. && .MARINE...(For the 4 PM Lake Superior forecast issuance) Issued at 338 PM EDT SUN JUN 19 2016 A deep low pres for early summer will move across northern Ontario tonight/Mon. Ahead of the low, southerly winds will increase to mostly 20-30kt this aftn/evening. The associated cold front will then sweep across Lake Superior tonight/early Mon morning with 20- 30kt westerly winds to follow thru Mon. Winds will diminish Mon night as a high pres ridge approaches. The high pres ridge will then set up across the Upper Great Lakes Tue night thru Fri, leading to a period of light winds mostly under 15kt. && .MQT WATCHES/WARNINGS/ADVISORIES... Upper Michigan... None. Lake Superior... None. Lake Michigan... None. && SHORT TERM...Voss LONG TERM...KEC AVIATION...JLB/Rolfson MARINE...Voss
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 413 PM EDT SUN JUN 19 2016 MIZ006-201200- ALGER- 413 PM EDT SUN JUN 19 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY WEST WINDS WILL GUST UP TO 35 MPH MONDAY. AS A RESULT OF STRONG WINDS AND BUILDING WAVES...DANGEROUS SWIMMING CONDITIONS WILL EXIST ALONG THE BEACHES OF ALGER COUNTY ON MONDAY. THUNDERSTORMS ARE POSSIBLE SATURDAY. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. MIZ001-003-201200- KEWEENAW-NORTHERN HOUGHTON- 413 PM EDT SUN JUN 19 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE TONIGHT. A FEW OF THE STORMS COULD BE STRONG TO SEVERE...PRODUCING STRONG WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. WEST WINDS WILL GUST UP TO 40 MPH ON MONDAY. THUNDERSTORMS ARE POSSIBLE SATURDAY. .SPOTTER INFORMATION STATEMENT... ANY REPORTS OF HAIL OR STRONG WINDS BY SPOTTERS OR THE PUBLIC ARE APPRECIATED. MIZ002-004-005-007-009>014-084-085-201200- ONTONAGON-BARAGA-MARQUETTE-LUCE-GOGEBIC-IRON-DICKINSON-MENOMINEE- DELTA-SOUTHERN SCHOOLCRAFT-SOUTHERN HOUGHTON-NORTHERN SCHOOLCRAFT- 413 PM EDT SUN JUN 19 2016 /313 PM CDT SUN JUN 19 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE TONIGHT. A FEW OF THE STORMS COULD BE STRONG TO SEVERE OVER THE NORTHWEST HALF OF UPPER MICHIGAN...PRODUCING STRONG WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY WEST WINDS WILL GUST UP TO 35 MPH ON MONDAY. THUNDERSTORMS ARE POSSIBLE SATURDAY .SPOTTER INFORMATION STATEMENT... ANY REPORTS OF HAIL OR STRONG WINDS BY SPOTTERS OR THE PUBLIC ARE APPRECIATED. LSZ162-240>251-263>267-201200- 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- 413 PM EDT SUN JUN 19 2016 /313 PM CDT SUN JUN 19 2016/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE OVER ALL OF LAKE SUPERIOR TONIGHT. A FEW OF THE STORMS TONIGHT OVER WESTERN AND CENTRAL LAKE SUPERIOR COULD PRODUCE LARGE HAIL AND STRONG WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE SATURDAY. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. LMZ221-248-250-201200- 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- 413 PM EDT SUN JUN 19 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE POSSIBLE LATE TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. KEC
The national radar mosaic for the moment the first event began.
5 strong wind, 2 high wind. Local standard time, as filed.
There was a delayed report via social media of an estimated 30-inch diameter maple tree snapped in National Mine.
There was a delayed report via social media of four large cottonwood trees uprooted in Faithhorn. All four trees had similar diameters of three to four feet.
There was a public report via social media of an estimated 18-inch diameter maple tree snapped in Hubbell.
There was a report via social media of an estimated 12-inch diameter pine tree down on a house roof in Mass City.
There was a public report via social media of an estimated 12-inch diameter maple tree down over a chain link fence and trampoline in Laurium.
The Luce County Sheriff reported that a downed tree broke power lines on Vulcan Street in Newberry. The size and type of tree was unknown. The damage report was relayed via social media.
There was a public report via social media of a 30-inch diameter willow tree uprooted in Newberry.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2016Every state in 2016This day in weather historyWarnings in Michigan, June 2016
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: 644946, 644949, 644942, 644937, 644939, 644936, 644935.