County annual report · FIPS 28149
2018 Warren County, MS Power Outage Report
In 2018, customers in Warren County, MS went without power for an average of 8.8 hours, a total of 199K customer-hours (Mississippi average 3.0 hours). That ranks 9th worst of 76 Mississippi counties and 644th of 2,798 nationally.
Compared with MS, the US and 2017
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Warren County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 10, 2018 14:15 | December 10, 2018 15:30 | 1h 15m | 3,383 | 1,113 |
| 2 | December 6, 2018 13:30 | December 6, 2018 19:00 | 5h 30m | 1,241 | 404 |
| 3 | March 6, 2018 03:15 | May 24, 2018 23:15 | 79d 20h | 1,232 | 109K |
| 4 | August 19, 2018 10:30 | August 19, 2018 12:45 | 2h 15m | 1,110 | 840 |
| 5 | November 1, 2018 07:30 | November 2, 2018 16:15 | 1d 8h | 1,094 | 5,616 |
| 6 | July 17, 2018 01:00 | July 17, 2018 23:30 | 22h 30m | 997 | 5,165 |
| 7 | December 2, 2018 23:15 | December 3, 2018 02:00 | 2h 45m | 968 | 1,847 |
| 8 | January 2, 2018 12:45 | January 2, 2018 20:45 | 8h | 840 | 2,105 |
| 9 | July 11, 2018 20:15 | July 12, 2018 18:30 | 22h 15m | 837 | 4,327 |
| 10 | June 22, 2018 22:15 | June 23, 2018 09:30 | 11h 15m | 794 | 1,078 |
Outage episodes by size in 2018: 67 reached 100+ customers, 5 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 Warren County reported on EIA Form 861 for 2018, 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 | 2018 | 5.3 hrs | 1.81 | 4.2 hrs | 1.64 |
| Twin County Electric Pwr Assn | 2018 | 8.2 hrs | - | 4.2 hrs | - |
| Yazoo Valley Elec 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 66% of Mississippi's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 22,742 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren County, MS annual power outage report, 2018, 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/2018/mississippi/warren-county