– 0% of Adams out 0 customers out in Mississippi

Power outage history

Adams County Mississippi

26hours

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

7th most of 74 in Mississippi 4.0× the national median

Worst outage on record Feb 18, 2021 68% of customers out · 90% back in 3.5 days

Hours without power, average customer per year 26h / yr State average 9.8 h · national median 6.6 h

Major outages a year 4.4 Peaks over 10% of customers or 50,000 customers

Typical time to restore 90% 9hours Median across major outages, from the peak

Longest single outage 8.4days Feb 17, 2021, over 1% of customers out

Outage hours on storm days 77% Share falling on days with a NOAA storm report here

Worst year 2021 2.7 days without power, average customer

Electricity customers 17,358 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 Adams'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

2021 was the worst well-recorded year, at 2.7 days for the average customer. Hatched years have a thin record and are left out of the averages.

Adams, hours without power per customer

AdamsUS median countyMississippi average

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
Feb 17, 2021	Ice storm	11,766	68%	8.4 d	3.5 d	807k
Oct 9, 2020	Hurricane Delta	10,574	61%	6.0 d	3.6 d	482k
Dec 28, 2024	Thunderstorms	7,769	45%	4.0 d	2.0 d	211k
Aug 29, 2021	Hurricane Ida	6,746	39%	2.7 d	28 h	110k
Jun 27, 2023	Thunderstorms	4,804	28%	47 h	41 h	92k
Nov 1, 2018	Tornadoes	4,068	23%	40 h	31 h	78k
Jun 24, 2019	Thunderstorms	5,241	30%	41 h	28 h	71k
Aug 27, 2020	Hurricane Laura	5,083	29%	36 h	30 h	64k
May 26, 2025	Thunderstorms	2,668	15%	2.4 d	26 h	47k
May 13, 2024	Thunderstorms	4,463	26%	41 h	8.5 h	40k
Feb 15, 2025	Thunderstorms	2,552	15%	37 h	25 h	33k
Mar 17, 2016	Thunderstorms	2,259	13%	29 h	28 h	30k
May 7, 2025	Windstorm	2,177	13%	34 h	26 h	30k
Jun 16, 2023	No storm report	1,736	10%	2.2 d	32 h	30k
Jul 10, 2022	No storm report	3,700	21%	15 h	11 h	29k
May 4, 2021	Thunderstorms	2,272	13%	26 h	18 h	28k
Aug 24, 2023	No storm report	2,766	16%	26 h	22 h	23k
May 16, 2024	No storm report	1,500	9%	22 h	13 h	18k
Jul 16, 2023	Thunderstorms	2,003	12%	23 h	18 h	18k
Apr 29, 2017	Thunderstorms	1,465	8%	20 h	11 h	16k
Oct 25, 2015	No storm report	2,477	14%	18 h	10 h	16k
Jun 3, 2024	Thunderstorms	1,284	7%	22 h	18 h	16k
Jul 10, 2019	No storm report	3,292	19%	11 h	8.5 h	15k
Jun 10, 2023	No storm report	1,338	8%	22 h	21 h	14k
Apr 18, 2019	Thunderstorms	2,929	17%	33 h	9.2 h	14k
Jul 13, 2019	Hurricane Barry	1,314	8%	17 h	10 h	14k
Oct 1, 2017	No storm report	2,114	12%	14 h	15 h	13k
Jun 20, 2019	Thunderstorms	3,702	21%	13 h	1.5 h	12k
Dec 14, 2022	Tornadoes	1,162	7%	17 h	14 h	12k
Mar 30, 2022	No storm report	1,726	10%	25 h	18 h	12k

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.

When it happens

The outage clock

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

What was happening

Weather behind the outages

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

Ice storm 28%
Tropical storm 24%
No storm on record 23%
Thunderstorms 21%
Tornadoes 3.1%
Windstorm 1.0%

Who keeps the lights on

Utilities serving Adams

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
Southwest Mississippi E P A	Cooperative	2,736	1,832	–	15.3	23k

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

Tensas, LA 96 h
Wilkinson 90 h
Jefferson 53 h
Franklin 50 h
Adams (this county) 26 h
Concordia, LA 16 h

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 17,358 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 →