County annual report · FIPS 40021
2019 Cherokee County, OK Power Outage Report
In 2019, customers in Cherokee County, OK went without power for an average of 3.1 hours, a total of 84K customer-hours (Oklahoma average 5.0 hours). That ranks 53rd worst of 77 Oklahoma counties and 1625th of 2,945 nationally.
Compared with OK, the US and 2018
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Cherokee County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 10, 2019 15:30 | April 10, 2019 23:15 | 7h 45m | 2,499 | 3,696 |
| 2 | August 27, 2019 02:45 | August 29, 2019 21:15 | 2d 18h | 1,901 | 16K |
| 3 | June 14, 2019 11:15 | June 14, 2019 13:30 | 2h 15m | 1,446 | 2,084 |
| 4 | August 23, 2019 05:15 | August 23, 2019 15:15 | 10h | 936 | 1,436 |
| 5 | May 21, 2019 03:45 | May 25, 2019 21:45 | 4d 18h | 923 | 29K |
| 6 | September 27, 2019 14:00 | September 27, 2019 16:45 | 2h 45m | 830 | 225 |
| 7 | November 12, 2019 21:45 | November 12, 2019 22:00 | 15m | 732 | 183 |
| 8 | August 15, 2019 23:45 | August 16, 2019 04:45 | 5h | 585 | 1,318 |
| 9 | January 8, 2019 19:30 | January 8, 2019 20:30 | 1h | 584 | 292 |
| 10 | May 29, 2019 15:45 | May 30, 2019 12:45 | 21h | 513 | 457 |
Outage episodes by size in 2019: 31 reached 100+ customers, 3 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Cherokee County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2018 | 2.1 hrs | 1.34 | 1.7 hrs | 1.17 |
| Ozarks Electric Coop Corp - (AR) | 2018 | 9.0 hrs | 1.91 | 59 min | 0.67 |
| Cookson Hills Elec Coop, Inc | 2018 | 2.9 hrs | 1.03 | 1.7 hrs | 0.96 |
| Lake Region Electric Coop, Inc - (OK) | 2018 | 2.6 hrs | 1.31 | 2.2 hrs | 1.15 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Northeast Oklahoma Electric Co | - | - | - | - | - |
| Tahlequah Public Works Authority | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Oklahoma's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 27,388 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee County, OK annual power outage report, 2019, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2019/oklahoma/cherokee-county