County annual report · FIPS 28143
2021 Tunica County, MS Power Outage Report
In 2021, customers in Tunica County, MS went without power for an average of 6.7 hours, a total of 24K customer-hours (Mississippi average 17.2 hours). That ranks 46th worst of 78 Mississippi counties and 1064th of 2,974 nationally.
Compared with MS, the US and 2020
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Tunica County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 13, 2021 08:00 | October 13, 2021 12:00 | 4h | 1,046 | 2,606 |
| 2 | January 24, 2021 13:30 | January 24, 2021 16:15 | 2h 45m | 1,031 | 2,311 |
| 3 | February 16, 2021 19:15 | February 17, 2021 04:45 | 9h 30m | 671 | 4,639 |
| 4 | February 14, 2021 20:45 | February 14, 2021 22:00 | 1h 15m | 576 | 145 |
| 5 | February 14, 2021 13:30 | February 14, 2021 18:45 | 5h 15m | 575 | 723 |
| 6 | March 4, 2021 00:15 | March 4, 2021 05:30 | 5h 15m | 570 | 820 |
| 7 | April 8, 2021 01:15 | April 8, 2021 18:45 | 17h 30m | 263 | 684 |
| 8 | December 11, 2021 07:00 | December 12, 2021 00:00 | 17h | 253 | 1,739 |
| 9 | October 18, 2021 06:30 | October 18, 2021 13:45 | 7h 15m | 228 | 1,162 |
| 10 | March 27, 2021 15:30 | March 27, 2021 23:15 | 7h 45m | 214 | 853 |
Outage episodes by size in 2021: 16 reached 100+ customers, 2 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 2021, 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 | 2021 | 22.9 hrs | 2.44 | 4.7 hrs | 1.50 |
| 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 2021; 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, 2021, 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/2021/mississippi/tunica-county