County annual report · FIPS 28147
2019 Walthall County, MS Power Outage Report
In 2019, customers in Walthall County, MS went without power for an average of 12.8 hours, a total of 89K customer-hours (Mississippi average 5.8 hours). That ranks 17th worst of 78 Mississippi counties and 421st of 2,945 nationally.
Compared with MS, the US and 2018
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Walthall 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 | May 9, 2019 16:45 | May 11, 2019 01:00 | 1d 8h | 2,678 | 14K |
| 2 | October 26, 2019 08:30 | October 27, 2019 22:00 | 1d 13h | 2,607 | 24K |
| 3 | July 14, 2019 16:15 | July 15, 2019 23:30 | 1d 7h | 1,412 | 7,769 |
| 4 | April 13, 2019 18:30 | April 15, 2019 23:00 | 2d 4h | 1,099 | 12K |
| 5 | January 19, 2019 14:30 | January 19, 2019 17:30 | 3h | 893 | 1,775 |
| 6 | June 18, 2019 10:45 | June 18, 2019 12:15 | 1h 30m | 888 | 935 |
| 7 | September 9, 2019 22:30 | September 10, 2019 04:45 | 6h 15m | 703 | 808 |
| 8 | March 4, 2019 19:45 | March 5, 2019 00:30 | 4h 45m | 628 | 1,372 |
| 9 | June 27, 2019 20:00 | June 27, 2019 22:30 | 2h 30m | 618 | 926 |
| 10 | March 24, 2019 15:00 | March 25, 2019 13:15 | 22h 15m | 391 | 7,753 |
Outage episodes by size in 2019: 25 reached 100+ customers, 4 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 Walthall 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 |
|---|---|---|---|---|---|
| Entergy Mississippi LLC | 2018 | 5.3 hrs | 1.81 | 4.2 hrs | 1.64 |
| Pearl River Valley El Pwr Assn | 2018 | 2.7 hrs | 1.99 | 2.2 hrs | 1.84 |
| Magnolia Electric Power Assn | 2018 | 5.3 hrs | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 74% of Mississippi's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,910 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. Walthall County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Walthall County, MS 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/mississippi/walthall-county