Technology and Science · 15 March, 2026 · 2 min read
Winter Storm Iona Dumps 36-Inch Snowfall, Triggers Widespread Power Outages in Northern Michigan
Snow totals reached 36 inches in northern Michigan. Widespread power outages and treacherous travel across northern Michigan.
Storm-related travel restrictions and government response in Michigan.
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USA TODAY
“Record snowfall possible from Plains to Great Lakes. See totals by address A major winter storm is moving across the northern United States, bringing a mix of heavy snow, ice and blizzard conditions from the High Plains through the Great Lakes. Forecasters say the storm could produce record or near-record snowfall in parts of the Upper Midwest. The hardest-hit areas are expected to include northern Wisconsin, the Upper Peninsula of Michigan and portions of Minnesota, where snow totals could reach 2 to 4 feet in some high terrain locations.”Read the original ↗
Celtics Wire
“'Potentially historic, record-breaking snowfall between 1 and 3 feet expected across all of Upper Michigan,' the National Weather Service wrote.”Read the original ↗
Shows a dramatic spread between formal forecasts (2–4 feet) and early observed totals (around 20+ inches), illustrating how projections can differ from initial measurements during a rapidly evolving blizzard.
Historic Blizzard Conditions
Winter Storm Iona has brought historic blizzard conditions to northern Michigan and the Upper Peninsula.
“NORTHERN MICHIGAN – A blizzard and ice storm sweeping across northern Michigan and the Upper Peninsula has brought whiteout conditions, treacherous travel and widespread power outages, leaving some communities at a standstill.”
The storm dumped up to 36 inches of snow in some areas, creating widespread travel disruptions and power outages.
Meteorologists warn of dangerous to impossible travel conditions as whiteout conditions persist across the region.
Residents in affected areas report they haven't seen comparable snowfall in years.
Some communities are reporting drifts as high as five to six feet tall.
Record Snowfall Totals
Record-breaking snowfall totals have been reported across the Upper Midwest.
Herman, Michigan recorded 36 inches of snow, while Mountain, Wisconsin saw 34 inches.
Wausau, Wisconsin shattered its 130-year record for snowiest single day with 23.4 inches.
Green Bay experienced its snowiest single day since 1889 with 17.1 inches.
These unprecedented totals have overwhelmed local infrastructure.
Michigan State Police posted photos from Alpena showing downed lines and trees blocking roads.
Residents struggle to access basic necessities as power outages persist.
Weather System Dynamics
The storm system driving Iona is a rapidly strengthening low-pressure system.
“The storm is being driven by a rapidly strengthening low-pressure system moving northeast across the Midwest. Forecasters say the system is pulling deep moisture north from the Gulf of Mexico while intensifying over the Great Lakes, which is also under the influence of Arctic air after a stratospheric warming event in the polar vortex.”
It's pulling deep moisture north from the Gulf of Mexico while intensifying over the Great Lakes.
This interaction with Arctic air following a stratospheric warming event in the polar vortex has created ideal conditions for extreme precipitation.
Meteorologists report that within heavy snow bands, snowfall rates of 1 to 3 inches per hour are possible.
Some areas are even experiencing thundersnow - a rare phenomenon indicating especially intense snow bands.
The storm is expected to continue pounding the region through Monday.
It will then transition to lake-effect snow, which could push totals toward 4 to 5 feet by Tuesday afternoon in some locations near Lake Superior.
Emergency Response Measures
Emergency response measures have been activated across Michigan as the storm's impacts intensify.
The state has activated its Emergency Operations Center to coordinate storm response efforts statewide.
The Mackinac Bridge has been closed due to hazardous conditions.
Michigan State Police are urging residents to stay home and avoid travel.
They warn that seeing downed power lines should be reported immediately to 911.
The combination of heavy snow, strong winds, and ice buildup has created prolonged blizzard conditions.
Officials warn that cleanup will take time as crews work to clear roads and restore power services.
Regional Impacts
The regional impacts of Winter Storm Iona extend beyond snowfall totals to include significant infrastructure challenges.
“Forecasters say the storm could produce record or near-record snowfall in parts of the Upper Midwest. The hardest-hit areas are expected to include northern Wisconsin, the Upper Peninsula of Michigan and portions of Minnesota, where snow totals could reach 2 to 4 feet in some high terrain locations.”
Besides the 36-inch snowfall in Herman, Michigan, other hard-hit areas include northern Wisconsin and portions of Minnesota.
Snow totals could reach 2 to 4 feet in high terrain locations across the region.
The weight of heavy snow poses additional risks including roof collapses on structures that haven't been properly cleared.
The transition to lake-effect snow could bring additional accumulation Tuesday morning.
Residents express concern about the prolonged nature of the storm.
Some note they haven't seen conditions this severe in years.
Emergency services work to maintain basic infrastructure and public safety amid the extreme weather event.