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

Power outage history

Humphreys County Mississippi

14hours

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

31st most of 74 in Mississippi 2.2× the national median

Worst outage on record Jun 15, 2023 50% of customers out · 90% back in 31 hours
Hours without power, average customer per year 14h / yr State average 9.8 h · national median 6.6 h
Major outages a year 6.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 4hours Median across major outages, from the peak
Longest single outage 5.9days Mar 24, 2023, over 1% of customers out
Outage hours on storm days 56% Share falling on days with a NOAA storm report here
Worst year 2023 40 hours without power, average customer
Electricity customers 3,331 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 Humphreys'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 40 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Humphreys, hours without power per customer

HumphreysUS median countyMississippi average
0 10 20 30 40 50 7.9 ’15 5.8 ’16 6.2 ’17 5.9 ’18 8.4 ’19 11 ’20 10 ’21 16 ’22 40 ’23 17 ’24 6.9 ’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 1,671 50% 2.9 d 31 h 61k
Mar 24, 2023 Tornadoes 2,449 74% 5.9 d 14 h 55k
Jan 12, 2024 Thunderstorms 924 28% 36 h 27 h 20k
Mar 30, 2022 No storm report 475 14% 2.3 d 2.2 d 19k
Apr 12, 2020 Tornadoes 529 16% 43 h 23 h 16k
Feb 17, 2021 Winter storm 684 21% 2.0 d 31 h 14k
May 4, 2019 No storm report 1,722 52% 8.8 h 18 h 12k
Mar 15, 2024 Thunderstorms 1,450 44% 37 h 48 min 12k
Nov 28, 2015 No storm report 1,760 53% 6.5 h 13 h 7.5k
Aug 31, 2017 Hurricane Harvey 1,008 30% 24 h 3.5 h 7.1k
Sep 18, 2016 No storm report 1,073 32% 8.0 h 2.2 h 6.3k
May 26, 2015 No storm report 1,782 54% 6.5 h 16 h 5.4k

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 +6h 90% by +10h

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 Humphreys from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 44%
  • Thunderstorms 32%
  • Tornadoes 20%
  • Winter storm 4.1%

Who keeps the lights on

Utilities serving Humphreys

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
Twin County Electric Pwr Assn MS 4,150 283 – 13.9 108k
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 3,331 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 →