Power Out Map
– 0% of Holmes out 0 customers out in Mississippi

Power outage history

Holmes County Mississippi

18hours

without power for the average customer in a typical year, 2018–2025

19th most of 74 in Mississippi 2.8× the national median

Worst outage on record Jun 14, 2023 60% of customers out · 90% back in 5.1 days
Hours without power, average customer per year 18h / yr State average 9.8 h · national median 6.6 h
Major outages a year 4.3 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 7hours Median across major outages, from the peak
Longest single outage 6.3days Jun 14, 2023, over 1% of customers out
Outage hours on storm days 73% Share falling on days with a NOAA storm report here
Worst year 2023 45 hours without power, average customer
Electricity customers 6,634 ORNL customer model · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Holmes's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2023 was the worst well-recorded year, at 45 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Holmes, hours without power per customer

HolmesUS median countyMississippi average
0 10 20 30 40 50 7.5 ’15 5.8 ’16 17 ’17 9.2 ’18 3.1 ’19 9.3 ’20 23 ’21 29 ’22 45 ’23 11 ’24 16 ’25 MS 9.8 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Jun 14, 2023 Thunderstorms 3,987 60% 6.3 d 5.1 d 215k
Mar 22, 2022 Tornadoes 3,900 59% 3.3 d 2.4 d 104k
Feb 17, 2021 Winter storm 3,169 48% 4.6 d 2.5 d 98k
Apr 30, 2017 Tornadoes 2,763 42% 3.3 d 2.5 d 64k
Apr 2, 2025 No storm report 2,917 44% 15 h 13 h 36k
Apr 12, 2020 Tornadoes 1,811 27% 2.1 d 13 h 31k
Jul 9, 2022 Thunderstorms 2,953 45% 19 h 6.5 h 23k
May 24, 2025 Thunderstorms 1,202 18% 2.1 d 21 h 19k
Mar 28, 2018 Thunderstorms 1,056 16% 41 h 21 h 18k
Dec 28, 2024 Thunderstorms 906 14% 44 h 23 h 16k
Sep 6, 2023 Thunderstorms 783 12% 23 h 10 h 13k
Jul 21, 2018 Thunderstorms 1,800 27% 14 h 10 h 13k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +8h 90% by +22h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Holmes from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Thunderstorms 44%
  • No storm on record 27%
  • Tornadoes 17%
  • Winter storm 11%
  • Tropical storm 0.9%

Who keeps the lights on

Utilities serving Holmes

As each utility reports to the Energy Information Administration for its whole Mississippi territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Entergy Mississippi LLC Investor Owned 640 410 2.61 13.9 384k
Delta Electric Power Assn Cooperative 1,941 578 5.81 12.7 21k
Yazoo Valley Elec Power Assn Cooperative – – – 16.3 9.5k

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Mississippi

Where it is darkest

Hours / yr64+

All Mississippi counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 6,634 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →