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

Power outage history

Yazoo County Mississippi

3.9hours

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

62nd most of 74 in Mississippi 40% below the national median

Worst outage on record Feb 17, 2021 11% of customers out · 90% back in 2.8 days
Hours without power, average customer per year 3.9h / yr State average 9.8 h · national median 6.6 h
Major outages a year 0.1 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2.8days Median across major outages, from the peak
Longest single outage 3.0days Feb 17, 2021, over 1% of customers out
Outage hours on storm days 70% Share falling on days with a NOAA storm report here
Worst year 2021 7.6 hours without power, average customer
Electricity customers 10,785 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 Yazoo'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 7.6 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Yazoo, hours without power per customer

YazooUS median countyMississippi average
0 2 4 6 8 10 12 1.5 ’15 1.6 ’16 1.5 ’17 1.1 ’18 1.5 ’19 3.3 ’20 7.6 ’21 7.3 ’22 4.9 ’23 3.8 ’24 1.9 ’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
Feb 17, 2021 Winter storm 1,148 11% 3.0 d 2.8 d 45k
Mar 22, 2022 Tornadoes 940 9% 26 h 26 h 18k
Apr 12, 2020 Tornadoes 1,015 9% 2.2 d 2.2 d 17k
Mar 30, 2022 Tornadoes 555 5% 2.3 d 1.5 h 17k
Jan 12, 2024 Thunderstorms 543 5% 36 h 35 h 11k
Jun 16, 2023 Thunderstorms 624 6% 25 h 17 h 10.0k
May 2, 2021 Tornadoes 483 4% 22 h – 8.3k
May 4, 2021 Thunderstorms 958 9% 20 h 19 h 7.4k
Mar 24, 2023 No storm report 880 8% 9.2 h 7.8 h 7.2k
Mar 11, 2022 Winter storm 654 6% 13 h 13 h 6.7k
Apr 13, 2022 Thunderstorms 233 2% 26 h – 6.0k
Jun 10, 2023 No storm report 658 6% 10 h 10 h 5.6k

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 +18h

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

  • No storm on record 30%
  • Tornadoes 28%
  • Thunderstorms 21%
  • Winter storm 19%
  • Tropical storm 1.0%
  • Flooding 0.8%

Who keeps the lights on

Utilities serving Yazoo

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
Public Serv Comm of Yazoo City MS – – – 10.0 58k
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 10,785 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 →