– 0 customers out in the US
April 2025 · 40th largest of 72
Thunderstorms
Apr 29, 2025. At the peak, 835,851 customers were without power, most of them in Pennsylvania, Ohio, Missouri.
Thunderstorms Customers out at the peak 835,851 Apr 29, 2025, 8:00 PM
Customer-hours lost 31M Every customer out, times every hour out
Counties with 10%+ out 113 of 287 counties affected
Above 600,000 out nationally 19 hours Apr 29, 2025, 6:00 PM onward
States affected 40 PA · OH · MO · WV · NY
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
Where it hit
| State | Peak out | Share | Counties 10%+ |
|---|---|---|---|
| Pennsylvania | 617,130 | 29% | 18 |
| Ohio | 139,963 | 7% | 12 |
| Missouri | 93,378 | 24% | 10 |
| West Virginia | 52,627 | 13% | 12 |
| New York | 46,828 | 6% | 3 |
| Texas | 46,389 | 3% | 10 |
| Michigan | 38,657 | 7% | 8 |
| Oklahoma | 33,418 | 7% | 7 |
| Kentucky | 24,523 | 4% | 2 |
| Massachusetts | 21,376 | 2% | 0 |
| Arkansas | 20,702 | 9% | 6 |
| Indiana | 14,551 | 6% | 0 |
| Illinois | 13,593 | 9% | 4 |
| Florida | 11,851 | 5% | 2 |
| Georgia | 11,450 | 2% | 1 |
| Louisiana | 7,321 | 4% | 0 |
| North Carolina | 6,908 | 6% | 1 |
| Idaho | 6,550 | 33% | 4 |
| New Jersey | 5,979 | 4% | 0 |
| Colorado | 5,422 | 4% | 1 |
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
- Lawrence, MO 100%
- Alcona, MI 100%
- Jefferson, OK 87%
- Indiana, PA 86%
- Harrison, OH 78%
- Howard, AR 72%
- Brooke, WV 67%
- Armstrong, PA 65%
- Iosco, MI 61%
- Braxton, WV 55%
- McDonald, MO 50%
- Clearfield, PA 47%
- Power, ID 49%
- Cambria, PA 45%
- Oscoda, MI 44%
- Jefferson, OH 43%