– 0 customers out in the US

March 2025 · 71th largest of 72

Ice storm

Mar 30, 2025. At the peak, 602,579 customers were without power, most of them in Michigan, Indiana, Wisconsin.

Ice storm
Customers out at the peak 602,579 Mar 30, 2025, 11:00 PM
Customer-hours lost 21M Every customer out, times every hour out
Counties with 10%+ out 75 of 176 counties affected
Above 600,000 out nationally 1 min Mar 30, 2025, 11:00 PM onward
States affected 31 MI · IN · WI · KY · OH
Hardest-hit county 100%out Cheboygan, MI · 16,118 customers

Hour by hour

The country, in the dark

Customers without power across the US, two days either side. The shaded band is the time the national total stayed above 600,000.

0 200k 400k 600k 800k Mar 29Mar 30Mar 31Apr 1Apr 2Apr 3 Peak 603k

By state

Where it hit

StatePeak outShareCounties 10%+
Michigan 289,834 8% 20
Indiana 120,488 8% 15
Wisconsin 66,496 16% 9
Kentucky 47,695 8% 6
Ohio 44,980 3% 2
Illinois 19,169 8% 6
Oregon 15,304 8% 1
Florida 12,947 3% 0
New York 10,468 4% 2
Vermont 7,766 10% 2
Texas 7,136 2% 2
Nevada 6,834 3% 1
Tennessee 6,410 4% 0
New Hampshire 6,022 4% 1
Missouri 5,268 13% 1
Colorado 2,694 2% 0
Louisiana 2,605 4% 1
West Virginia 2,297 5% 0
Iowa 2,282 4% 1
North Carolina 1,985 3% 0

State peaks add each county's own peak, which may fall at different hours, so they can exceed the true simultaneous total.

By county

The hardest hit