Thunderstorms

Apr 1, 2023. At the peak, 1,116,244 customers were without power, most of them in Ohio, Pennsylvania, Virginia.

Thunderstorms

Customers out at the peak 1,116,244 Apr 1, 2023, 5:00 PM

Customer-hours lost 18M Every customer out, times every hour out

Counties with 10%+ out 214 of 549 counties affected

Above 600,000 out nationally 12 hours Apr 1, 2023, 1:00 PM onward

States affected 38 OH · PA · VA · TN · NC

Hardest-hit county 100%out Forest, PA · 3,447 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%+
Ohio	366,755	7%	25
Pennsylvania	352,856	9%	19
Virginia	136,897	5%	26
Tennessee	130,657	8%	16
North Carolina	127,716	10%	19
Georgia	119,820	4%	8
Minnesota	106,866	7%	5
West Virginia	100,125	13%	24
Kentucky	92,150	8%	26
Indiana	86,476	6%	9
Maryland	64,419	3%	2
New York	53,141	4%	4
Wisconsin	47,821	8%	7
New Jersey	34,699	3%	0
Michigan	25,866	6%	6
Missouri	24,581	3%	4
Illinois	22,832	11%	6
Colorado	16,601	1%	1
South Carolina	14,470	3%	0
Florida	10,356	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