Power outage history
Carter County Oklahoma
5.5hours
without power for the average customer in a typical year, 2018–2025
50th most of 75 in Oklahoma 16% 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 Carter's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 16 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Carter, 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 |
|---|---|---|---|---|---|---|
| Apr 27, 2024 | Tornadoes | 16,751 | 56% | 2.7 d | 35 h | 350k |
| Jun 17, 2023 | Thunderstorms | 9,687 | 33% | 2.6 d | 39 h | 175k |
| Apr 5, 2025 | Thunderstorms | 2,424 | 8% | 31 h | 27 h | 35k |
| Apr 19, 2025 | Thunderstorms | 2,372 | 8% | 17 h | 15 h | 13k |
| Mar 14, 2025 | No storm report | 622 | 2% | 22 h | – | 12k |
| May 28, 2021 | No storm report | 1,933 | 6% | 8.0 h | 8.0 h | 12k |
| Jun 5, 2024 | No storm report | 924 | 3% | 18 h | – | 11k |
| Jun 8, 2025 | Thunderstorms | 778 | 3% | 17 h | – | 11k |
| Jul 11, 2021 | Thunderstorms | 1,768 | 6% | 16 h | 5.2 h | 9.9k |
| May 15, 2022 | Thunderstorms | 722 | 2% | 16 h | – | 9.4k |
| Feb 16, 2021 | Winter storm | 5,348 | 18% | 4.5 h | 1.5 h | 9.1k |
| Apr 22, 2020 | Thunderstorms | 732 | 2% | 17 h | – | 9.0k |
| May 26, 2025 | Thunderstorms | 608 | 2% | 20 h | – | 8.7k |
| Nov 3, 2024 | Thunderstorms | 1,321 | 4% | 16 h | – | 8.4k |
| Mar 4, 2025 | Tornadoes | 1,619 | 5% | 11 h | 8.8 h | 7.6k |
| May 7, 2020 | Thunderstorms | 1,360 | 5% | 5.2 h | – | 7.1k |
| Jun 15, 2023 | Thunderstorms | 1,260 | 4% | 10 h | – | 6.7k |
| Jun 1, 2024 | No storm report | 1,639 | 6% | 4.0 h | 4.0 h | 6.2k |
| Jun 30, 2017 | Thunderstorms | 1,994 | 7% | 3.5 h | 1.8 h | 6.2k |
| Oct 4, 2023 | Flooding | 509 | 2% | 14 h | – | 6.0k |
| Apr 24, 2022 | No storm report | 1,871 | 6% | 9.8 h | 6.2 h | 5.9k |
| Apr 30, 2017 | No storm report | 397 | 1% | 16 h | – | 5.9k |
| Jun 23, 2018 | No storm report | 3,595 | 12% | 2.8 h | 12 min | 5.4k |
| Sep 30, 2021 | No storm report | 2,146 | 7% | 2.5 h | 11 h | 5.4k |
| Dec 8, 2020 | No storm report | 2,326 | 8% | 2.5 h | 1.2 h | 5.1k |
| Jul 2, 2021 | No storm report | 1,661 | 6% | 3.2 h | 3.2 h | 5.1k |
| Jul 10, 2019 | No storm report | 676 | 2% | 9.5 h | – | 5.1k |
| Jul 4, 2024 | Heat | 552 | 2% | 10 h | – | 4.9k |
| Jul 7, 2024 | No storm report | 586 | 2% | 10 h | – | 4.9k |
| Oct 1, 2021 | No storm report | 2,145 | 7% | 2.2 h | 48 min | 4.8k |
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 Carter from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Tornadoes 37%
- Thunderstorms 31%
- No storm on record 28%
- Winter storm 1.7%
- Flooding 1.2%
- Heat 1.1%
Who keeps the lights on
Utilities serving Carter
As each utility reports to the Energy Information Administration for its whole Oklahoma territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Oklahoma Gas & Electric Co | Investor Owned | 237 | 145 | 1.71 | 12.5 | 716k |
| Cotton Electric Coop, Inc | Cooperative | 549 | 238 | 4.05 | 12.7 | 20k |
| Red River Valley Rrl Elec Assn | Cooperative | – | – | – | 12.0 | 16k |
| People's Electric Cooperative | Cooperative | 245 | 212 | 2.60 | 15.6 | 15k |
| Rural Electric Coop, Inc | Cooperative | 698 | 212 | 4.49 | 11.9 | 9.2k |
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.
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 29,805 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 →