Thunderstorms

Aug 10, 2020. At the peak, 1,604,900 customers were without power, most of them in Illinois, Iowa, Indiana.

Thunderstorms

Customers out at the peak 1,604,900 Aug 10, 2020, 8:00 PM

Customer-hours lost 72M Every customer out, times every hour out

Counties with 10%+ out 192 of 463 counties affected

Above 600,000 out nationally 2.2 days Aug 10, 2020, 1:00 PM onward

States affected 41 IL · IA · IN · MO · NE

Hardest-hit county 100%out Marshall, IA · 15,945 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%+
Illinois	791,522	14%	31
Iowa	557,117	48%	39
Indiana	207,259	10%	27
Missouri	103,642	11%	8
Nebraska	59,699	16%	2
Michigan	57,861	4%	8
Georgia	54,581	3%	5
New York	50,968	3%	4
Wisconsin	45,997	8%	7
New Jersey	41,554	2%	0
Virginia	40,509	6%	8
Florida	40,391	2%	1
Texas	38,567	5%	12
Pennsylvania	36,314	2%	1
Alabama	29,880	5%	6
Minnesota	21,356	2%	0
North Carolina	20,276	3%	2
Ohio	17,075	4%	1
Arkansas	14,955	4%	4
Tennessee	14,831	5%	3

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

By county