Winter Storm Iona Dumps 36-Inch Snowfall, Triggers Widespread Power Outages in Northern Michigan
Image: USA TODAY

Winter Storm Iona Dumps 36-Inch Snowfall, Triggers Widespread Power Outages in Northern Michigan

15 March, 2026.Technology and Science.8 sources

Key Takeaways

  • Snow totals reached 36 inches in northern Michigan.
  • Widespread power outages and treacherous travel across northern Michigan.
  • Snow rates reached up to 3 inches per hour.

Historic Blizzard Conditions

Winter Storm Iona has brought historic blizzard conditions to northern Michigan and the Upper Peninsula.

'Potentially historic blizzard' hits Michigan

Celtics WireCeltics Wire

The storm dumped up to 36 inches of snow in some areas, creating widespread travel disruptions and power outages.

Image from Celtics Wire
Celtics WireCeltics Wire

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.

Image from ClickOnDetroit
ClickOnDetroitClickOnDetroit

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

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.

Image from mlive
mlivemlive

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

Besides the 36-inch snowfall in Herman, Michigan, other hard-hit areas include northern Wisconsin and portions of Minnesota.

Image from The Detroit News
The Detroit NewsThe Detroit News

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.

More on Technology and Science