Power outage history
Clark County Arkansas
8.0hours
without power for the average customer in a typical year, 2018–2025
45th most of 73 in Arkansas 1.2× 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 Clark's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2020 was the worst well-recorded year, at 30 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Clark, 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 12, 2020 | Thunderstorms | 7,014 | 59% | 4.6 d | 3.3 d | 290k |
| Feb 16, 2015 | Ice storm | 5,735 | 48% | 2.6 d | 42 h | 130k |
| Feb 1, 2023 | Ice storm | 6,725 | 56% | 2.7 d | 31 h | 98k |
| Jul 14, 2016 | Thunderstorms | 2,804 | 23% | 2.6 d | 46 h | 50k |
| Apr 5, 2025 | Flooding | 1,435 | 12% | 29 h | 29 h | 16k |
| Aug 18, 2024 | Thunderstorms | 2,870 | 24% | 23 h | 12 h | 15k |
| Jun 5, 2020 | Thunderstorms | 3,464 | 29% | 18 h | 14 h | 14k |
| May 9, 2015 | Flooding | 1,394 | 12% | 26 h | 1.8 h | 12k |
| Apr 13, 2019 | No storm report | 3,302 | 28% | 34 h | 5.5 h | 12k |
| Jun 18, 2023 | Thunderstorms | 487 | 4% | 33 h | – | 9.9k |
| Mar 16, 2018 | No storm report | 1,507 | 13% | 5.2 h | 5.0 h | 7.7k |
| Apr 30, 2016 | Flooding | 2,816 | 24% | 2.8 h | 2.8 h | 7.4k |
| May 11, 2017 | No storm report | 4,127 | 35% | 2.0 h | 9.8 h | 7.3k |
| Apr 26, 2024 | No storm report | 1,552 | 13% | 14 h | 3.8 h | 7.3k |
| Jun 10, 2022 | Thunderstorms | 544 | 5% | 30 h | – | 7.1k |
| Jul 12, 2020 | No storm report | 3,044 | 26% | 4.5 h | 1.0 h | 6.6k |
| Apr 10, 2022 | No storm report | 1,865 | 16% | 16 h | 4.5 h | 6.2k |
| May 24, 2024 | Thunderstorms | 1,074 | 9% | 18 h | 17 h | 5.6k |
| Apr 29, 2017 | Thunderstorms | 1,775 | 15% | 6.0 h | 5.0 h | 5.6k |
| Mar 27, 2021 | Thunderstorms | 578 | 5% | 17 h | – | 5.3k |
| Dec 10, 2021 | Thunderstorms | 315 | 3% | 18 h | – | 5.0k |
| Aug 19, 2025 | No storm report | 3,975 | 33% | 4.8 h | 48 min | 4.8k |
| May 29, 2015 | Thunderstorms | 5,187 | 43% | 8.5 h | 12 min | 4.5k |
| May 4, 2021 | No storm report | 317 | 3% | 15 h | – | 4.3k |
| Nov 30, 2015 | No storm report | 502 | 4% | 10 h | – | 4.1k |
| May 25, 2015 | No storm report | 708 | 6% | 10 h | 7.5 h | 4.0k |
| Jun 8, 2018 | No storm report | 308 | 3% | 20 h | – | 3.6k |
| Apr 12, 2022 | No storm report | 1,380 | 12% | 9.5 h | 8.2 h | 3.5k |
| May 1, 2025 | No storm report | 1,179 | 10% | 3.0 h | 3.0 h | 3.4k |
| Jul 12, 2016 | No storm report | 1,457 | 12% | 4.0 h | 3.5 h | 3.4k |
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 Clark from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Thunderstorms 54%
- No storm on record 26%
- Ice storm 15%
- Flooding 3.1%
- Winter storm 0.6%
- Tropical storm 0.5%
Who keeps the lights on
Utilities serving Clark
As each utility reports to the Energy Information Administration for its whole Arkansas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Entergy Arkansas LLC | Investor Owned | 518 | 252 | 2.24 | 13.4 | 612k |
| South Central Ark El Coop, Inc | Cooperative | – | – | – | 16.1 | 9.4k |
| Ouachita Electric Coop Corp | Cooperative | – | – | – | 13.5 | 8.4k |
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
- Dallas 36 h
- Montgomery 19 h
- Ouachita 18 h
- Hot Spring 16 h
- Nevada 15 h
- Pike 12 h
- Clark (this county) 8.0 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 11,935 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 →