Power outage history
Harrison County Iowa
4.4hours
without power for the average customer in a typical year, 2018–2025
39th most of 98 in Iowa 34% below the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Harrison's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2025 was the worst well-recorded year, at 18 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Harrison, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Mar 19, 2025 | Winter storm | 4,801 | 63% | 31 h | 35 h | 79k |
| Mar 20, 2025 | No storm report | 1,178 | 15% | 2.2 d | 2.2 d | 36k |
| Aug 10, 2020 | Thunderstorms | 1,413 | 19% | 17 h | 16 h | 9.4k |
| Jul 18, 2016 | No storm report | 2,251 | 30% | 12 h | 1.2 h | 9.1k |
| Mar 4, 2025 | Winter storm | 1,139 | 15% | 16 h | 9.2 h | 8.7k |
| Aug 9, 2025 | Thunderstorms | 2,071 | 27% | 13 h | 8.0 h | 8.1k |
| Mar 17, 2024 | No storm report | 2,453 | 32% | 3.0 h | 8.0 h | 7.4k |
| May 24, 2024 | Thunderstorms | 1,406 | 18% | 11 h | 11 h | 6.1k |
| Jul 20, 2016 | No storm report | 2,426 | 32% | 3.0 h | 2.8 h | 6.1k |
| May 16, 2017 | Thunderstorms | 1,239 | 16% | 13 h | 6.5 h | 5.7k |
| Apr 23, 2022 | No storm report | 713 | 9% | 7.0 h | 5.0 h | 4.6k |
| Jun 30, 2018 | No storm report | 680 | 9% | 8.0 h | 8.0 h | 4.0k |
| May 6, 2024 | No storm report | 525 | 7% | 11 h | 10 h | 3.9k |
| Jul 31, 2024 | Thunderstorms | 340 | 4% | 14 h | – | 3.6k |
| Nov 26, 2015 | No storm report | 303 | 4% | 14 h | – | 3.3k |
| Jul 12, 2023 | Thunderstorms | 629 | 8% | 10 h | 7.5 h | 2.9k |
| May 24, 2020 | No storm report | 1,530 | 20% | 6.5 h | 6.2 h | 2.6k |
| Jul 24, 2022 | No storm report | 664 | 9% | 3.8 h | 3.8 h | 2.5k |
| Oct 21, 2022 | No storm report | 661 | 9% | 3.5 h | 4.5 h | 2.3k |
| Dec 24, 2022 | No storm report | 204 | 3% | 12 h | – | 2.2k |
| Dec 25, 2016 | No storm report | 769 | 10% | 4.2 h | 3.0 h | 2.1k |
| May 3, 2021 | No storm report | 562 | 7% | 4.5 h | 9.2 h | 1.8k |
| Aug 14, 2025 | No storm report | 300 | 4% | 6.2 h | – | 1.8k |
| Sep 16, 2016 | No storm report | 343 | 5% | 8.0 h | – | 1.6k |
| Jul 29, 2018 | No storm report | 304 | 4% | 5.2 h | – | 1.5k |
| Jun 28, 2018 | Thunderstorms | 1,093 | 14% | 2.5 h | 13 h | 1.5k |
| Nov 4, 2024 | No storm report | 1,002 | 13% | 1.5 h | 1.2 h | 1.5k |
| Aug 9, 2019 | No storm report | 473 | 6% | 4.5 h | 3.8 h | 1.5k |
| Jan 25, 2021 | Winter storm | 295 | 4% | 5.0 h | – | 1.5k |
| Jul 11, 2022 | Thunderstorms | 509 | 7% | 3.8 h | 3.8 h | 1.4k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Harrison from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 45%
- Winter storm 39%
- Thunderstorms 15%
Who keeps the lights on
Utilities serving Harrison
As each utility reports to the Energy Information Administration for its whole Iowa territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| MidAmerican Energy Co | Investor Owned | 205 | 82 | 1.19 | 11.2 | 640k |
| Western Iowa Power Coop | IA | 27 | 27 | 0.27 | 13.5 | 69k |
| Nishnabotna Valley R E C | IA | 153 | 153 | 1.25 | 13.6 | 64k |
| Harrison County Rrl Elec Coop | IA | 52 | 46 | 0.53 | 14.5 | 46k |
| City of Woodbine | IA | – | – | – | – | 8.2k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Washington, NE 17 h
- Harrison (this county) 4.4 h
- Monona 3.6 h
- Pottawattamie 3.0 h
- Shelby 2.9 h
- Burt, NE 2.4 h
- Crawford 2.1 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 7,620 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →