County annual report · FIPS 28143
2020 Tunica County, MS Power Outage Report
In 2020, customers in Tunica County, MS went without power for an average of 11.8 hours, a total of 43K customer-hours (Mississippi average 18.5 hours). That ranks 39th worst of 79 Mississippi counties and 674th of 3,019 nationally.
Compared with MS, the US and 2019
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Tunica County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 15, 2020 17:15 | February 15, 2020 18:00 | 45m | 2,313 | 1,190 |
| 2 | April 10, 2020 16:15 | May 11, 2020 17:15 | 31d 1h | 821 | 22K |
| 3 | January 11, 2020 10:30 | January 12, 2020 19:30 | 1d 9h | 676 | 5,195 |
| 4 | July 9, 2020 19:00 | July 9, 2020 19:45 | 45m | 597 | 448 |
| 5 | June 28, 2020 22:00 | June 29, 2020 02:00 | 4h | 248 | 452 |
| 6 | June 23, 2020 19:30 | June 24, 2020 10:45 | 15h 15m | 239 | 2,319 |
| 7 | December 17, 2020 14:30 | December 18, 2020 15:30 | 1d 1h | 154 | 2,682 |
| 8 | November 15, 2020 09:45 | November 15, 2020 11:45 | 2h | 152 | 288 |
| 9 | February 20, 2020 18:45 | March 12, 2020 17:30 | 20d 22h | 148 | 3,251 |
| 10 | August 21, 2020 20:15 | August 21, 2020 22:00 | 1h 45m | 125 | 177 |
Outage episodes by size in 2020: 10 reached 100+ customers, 1 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 Tunica County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Entergy Mississippi LLC | 2020 | 16.7 hrs | 2.28 | 3.8 hrs | 1.38 |
| Coahoma Electric Power Assn | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 77% of Mississippi's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,630 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. Tunica County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tunica County, MS annual power outage report, 2020, 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/2020/mississippi/tunica-county