Thunderstorms

May 16, 2025. At the peak, 908,262 customers were without power, most of them in Kentucky, Maryland, Missouri.

Thunderstorms

Customers out at the peak 908,262 May 17, 2025, 12:00 AM

Customer-hours lost 17M Every customer out, times every hour out

Counties with 10%+ out 178 of 431 counties affected

Above 600,000 out nationally 17 hours May 16, 2025, 6:00 PM onward

States affected 36 KY · MD · MO · OH · VA

Hardest-hit county 83%out Trigg, KY · 5,298 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.

By state

State	Peak out	Share	Counties 10%+
Kentucky	243,669	14%	50
Maryland	132,246	6%	3
Missouri	130,079	9%	7
Ohio	121,267	5%	6
Virginia	120,938	8%	16
Indiana	99,590	6%	12
Tennessee	93,811	8%	9
Illinois	71,228	8%	12
Michigan	55,648	8%	6
West Virginia	53,967	11%	15
North Carolina	47,162	8%	7
Wisconsin	41,118	4%	4
Alabama	39,741	5%	5
Minnesota	26,728	3%	3
Texas	20,491	3%	4
Arkansas	16,764	10%	5
Massachusetts	14,184	2%	0
Florida	14,072	20%	1
New York	14,035	4%	1
California	11,875	2%	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