Thanksgiving week 2025 brought a sharp turn to winter across Michigan and the wider Great Lakes, with a strengthening low-pressure system producing powerful winds, falling temperatures, snow and dangerous travel conditions from Wednesday, November 26, into Thanksgiving Day.
West Michigan did not receive the extreme multi-foot totals reported in parts of Michigan's Upper Peninsula, but the combination of wind and lake-effect snow still created hazardous conditions. Official National Weather Service climate observations later showed that Grand Rapids recorded a peak wind gust of 48 mph on November 26, along with 1 inch of snow that day and another 0.6 inch on Thanksgiving Day.
The storm was considerably more severe farther north. NOAA's official storm-event record for Marquette County says portions of the western and central Upper Peninsula received roughly 1 to 3 feet of snow while gusts of 40 to 60 mph produced blizzard conditions and contributed to widespread power outages.
How the Thanksgiving Storm Developed
The storm formed as a strong area of low pressure moved through the Upper Midwest and intensified while tracking toward the Great Lakes. Ahead of the system, relatively mild air allowed precipitation to begin mainly as rain in many locations. Colder air then wrapped around the low, changing precipitation to snow and increasing the potential for lake-effect snow downwind of the Great Lakes.
The National Weather Service's post-storm review for the western Great Lakes documented the same broad evolution: rain or mixed precipitation changed to snow as the system deepened, while strong winds created blowing and drifting snow.
Wednesday, November 26: Wind Becomes a Major Hazard
For West Michigan, Wednesday was primarily notable for rapidly strengthening winds and the transition toward colder, snowier conditions.
At Grand Rapids, official National Weather Service observations show a high temperature of 48 degrees and a low of 30 degrees on November 26. The station measured 1 inch of snow and a peak gust of 48 mph from the southwest. Blowing snow was also recorded.
The strongest winds increased the danger well beyond what snowfall totals alone might suggest. Fresh snow could be blown across roads, visibility could deteriorate quickly in heavier showers, and vehicles—particularly high-profile vehicles—were more vulnerable to crosswinds on exposed roads.
Strong winds were also observed elsewhere around the Great Lakes. National Weather Service records from the storm documented gusts of more than 50 mph at several locations, illustrating the large geographic reach of the wind field.
Thanksgiving Day: Colder Air and Lake-Effect Snow
By Thanksgiving Day, November 27, colder air had become established across Lower Michigan. Grand Rapids reached only 32 degrees, with a low of 25 degrees, according to National Weather Service climate records. Another 0.6 inch of snow was measured at the city's official observing site.
Lake-effect snow became an important part of the forecast because cold air crossing relatively warmer Lake Michigan could pick up heat and moisture before moving inland.
The exact location and intensity of lake-effect snow can vary dramatically over short distances. The National Weather Service in Grand Rapids explains that wind direction, wind speed, atmospheric instability and the distance air travels over Lake Michigan all influence where the strongest bands develop.
That variability meant communities closer to Lake Michigan and locations beneath persistent snow bands could receive more snow than areas only a short distance away. It also meant regional snowfall estimates should not be interpreted as uniform totals for every community.
West Michigan Versus the Upper Peninsula
One of the most important distinctions in the Thanksgiving storm was the enormous difference between conditions in Lower Michigan and those in portions of the Upper Peninsula.
Grand Rapids and Southwest Lower Michigan
In Grand Rapids, the official observing station measured 1.6 inches of snow across November 26 and Thanksgiving Day combined. Wind was the more conspicuous hazard, including the 48 mph peak gust on November 26.
Lake-effect bands could still create locally heavier bursts outside the official airport observation site, especially in favored areas closer to Lake Michigan. This is why forecasts during lake-effect events often describe ranges rather than a single accumulation figure.
Western and Central Upper Peninsula
The Upper Peninsula experienced a much more serious winter storm. NOAA's Storm Events Database says western and central sections of the UP received roughly 1 to 3 feet of snow during the event.
According to that official storm summary, wind gusts of approximately 40 to 60 mph produced blizzard conditions. Wet snow combined with strong winds brought down trees and power lines, and about 14,000 customers in western and central portions of the Upper Peninsula lost electricity. Some outages lasted as long as 30 hours, and warming shelters were opened.
NOAA snow observations also showed exceptionally large localized totals. By November 28, a report near Ironwood listed more than 31 inches during a 24-hour period, while several other northern Michigan locations reported well over a foot. Such reports underscore how different the storm was in the snowbelts of the Upper Peninsula compared with Grand Rapids.
Why Lake-Effect Snow Is So Localized
Lake-effect snow develops when cold air travels over comparatively warm, unfrozen lake water. The air collects moisture and heat from the lake, becomes unstable and can generate narrow bands of heavy snow after reaching land.
Wind direction is critical. The National Weather Service notes that westerly flow can carry Lake Michigan snow inland toward Grand Rapids, while different wind directions shift the most favored snow belts north or south.
This is also why snowfall totals can change sharply within a few miles. One community may experience repeated heavy snow showers while another stays between bands for much of the event.
Travel Risks During the Holiday
The Thanksgiving storm arrived during one of the busiest travel periods of the year, increasing the consequences of even moderate snowfall.
For motorists, the most dangerous combination was snow, strong winds and rapidly changing visibility. Blowing snow can cover previously treated pavement and reduce visibility without warning, particularly in open rural areas and near the lakeshore.
Drivers traveling during winter storms should rely on current National Weather Service warnings and state transportation information rather than older forecast maps or social-media screenshots. Conditions during lake-effect events can change substantially over only a few hours.
Basic winter precautions include slowing down, increasing following distance, keeping the vehicle fueled or charged, carrying warm clothing and emergency supplies, and postponing travel when authorities advise against it.
The Weekend Brought a Second Winter Storm
The Thanksgiving lake-effect event was not the end of Michigan's difficult holiday travel period.
A separate storm arrived on Saturday, November 29, and continued into November 30. Unlike the localized lake-effect snow around Thanksgiving, this system produced widespread snow across much of Michigan.
The National Weather Service's post-storm analysis for southeast Michigan documented widespread accumulations during the November 29-30 system, while observations in western and northern portions of the state also showed substantial snowfall.
Grand Rapids recorded 4.3 inches on November 29 and another 4 inches on November 30, according to official National Weather Service climate data. The snow depth at the observing station reached 8 inches by November 30.
Elsewhere in the region, the National Weather Service reported widespread totals of 6 to 10 inches in parts of northern Indiana and southwest Michigan, with isolated totals reaching roughly 12 inches. Blowing and drifting snow again contributed to difficult road conditions.
What the Final Observations Showed
Looking back after the storms had passed provides a clearer picture than the preliminary forecasts available before Thanksgiving.
- Grand Rapids on November 26: 1 inch of snow and a peak gust of 48 mph.
- Grand Rapids on Thanksgiving Day: 0.6 inch of additional snow, with a high temperature of 32 degrees.
- Western and central Upper Peninsula: roughly 1 to 3 feet of snow in the hardest-hit areas, accompanied by blizzard conditions.
- Power impacts in the Upper Peninsula: about 14,000 customers lost electricity during the Thanksgiving storm, according to NOAA's storm-event record.
- Grand Rapids on November 29-30: another 8.3 inches of snow during the post-Thanksgiving storm.
The final observations also illustrate an important point about winter weather coverage: forecasts describe probabilities and expected ranges, while actual snowfall can vary considerably because of storm track, temperature and the narrow structure of lake-effect bands.
A Disruptive Start to the Holiday-Season Winter
Thanksgiving 2025 ultimately brought two distinct winter-weather episodes to Michigan: a windy Thanksgiving-period storm with major lake-effect and blizzard impacts farther north, followed by a more widespread snowstorm over the weekend.
West Michigan avoided the extraordinary multi-foot snowfall experienced in portions of the Upper Peninsula during the first storm, but strong winds, blowing snow, colder temperatures and the subsequent weekend snowfall still made the holiday travel period unusually difficult.
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