Power outage history
Bowman County North Dakota
The outage record here is too thin for a reliable yearly average. Raw events are listed below.
Worst outage on record Nov 6, 2022 9% of customers out · 90% back in 4.2 hoursEvery day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Bowman's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
Bowman, 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 |
|---|---|---|---|---|---|---|
| Nov 6, 2022 | Windstorm | 230 | 9% | 7.0 h | 4.2 h | 1.4k |
| Jul 11, 2018 | No storm report | 775 | 30% | 1.0 h | 1.0 h | 772 |
| Sep 28, 2021 | No storm report | 919 | 35% | 48 min | – | 689 |
| Dec 17, 2025 | Winter storm | 137 | 5% | 7.5 h | 2.5 h | 656 |
| Feb 21, 2017 | No storm report | 140 | 5% | 4.0 h | 4.0 h | 559 |
| Jun 6, 2020 | Thunderstorms | 210 | 8% | 1.8 h | 1.0 h | 364 |
| Jul 3, 2018 | Thunderstorms | 133 | 5% | 3.0 h | 2.8 h | 352 |
| Jun 26, 2023 | No storm report | 129 | 5% | 2.8 h | – | 349 |
| Mar 10, 2018 | No storm report | 792 | 30% | 48 min | – | 330 |
| Aug 18, 2025 | No storm report | 120 | 5% | 2.8 h | – | 326 |
| Nov 14, 2019 | No storm report | 167 | 6% | 4.0 h | 30 min | 314 |
| Jul 8, 2019 | No storm report | 135 | 5% | 2.2 h | 2.2 h | 304 |
| Jul 13, 2024 | Thunderstorms | 131 | 5% | 2.2 h | – | 292 |
| Jul 20, 2025 | Thunderstorms | 128 | 5% | 2.2 h | – | 286 |
| Nov 13, 2021 | Windstorm | 91 | 3% | 3.0 h | – | 273 |
| May 19, 2022 | No storm report | 133 | 5% | 2.0 h | 9.2 h | 265 |
| May 9, 2020 | Windstorm | 90 | 3% | 3.0 h | – | 264 |
| Jun 15, 2025 | Windstorm | 127 | 5% | 2.0 h | – | 252 |
| Jan 14, 2021 | Windstorm | 46 | 2% | 5.5 h | – | 251 |
| Jul 6, 2024 | No storm report | 128 | 5% | 2.0 h | – | 248 |
| Aug 16, 2023 | No storm report | 42 | 2% | 6.2 h | – | 236 |
| Apr 9, 2017 | No storm report | 166 | 6% | 3.0 h | 1.0 h | 222 |
| Feb 22, 2021 | No storm report | 90 | 3% | 2.5 h | – | 217 |
| Feb 8, 2024 | No storm report | 58 | 2% | 4.2 h | – | 209 |
| Dec 17, 2022 | No storm report | 42 | 2% | 3.5 h | – | 140 |
| Jul 16, 2017 | No storm report | 138 | 5% | 1.0 h | 1.0 h | 138 |
| Apr 29, 2018 | No storm report | 140 | 5% | 1.0 h | 48 min | 137 |
| Mar 29, 2021 | Windstorm | 89 | 3% | 1.5 h | – | 133 |
| Jul 29, 2024 | No storm report | 205 | 8% | 30 min | – | 102 |
| Jul 22, 2020 | No storm report | 48 | 2% | 2.0 h | – | 96 |
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 Bowman from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 52%
- Windstorm 27%
- Thunderstorms 14%
- Winter storm 7.0%
Who keeps the lights on
Utilities serving Bowman
As each utility reports to the Energy Information Administration for its whole North Dakota territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | Investor Owned | 95 | 65 | 0.81 | 11.1 | 80k |
| Slope Electric Coop Inc | Cooperative | – | – | – | 14.3 | 3.2k |
| WAPA-- Western Area Power Administration | Federal | – | – | – | – | – |
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
- Harding, SD 60 h
- Bowman (this county) – 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 2,623 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 →