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

Power outage history

Chickasaw County Mississippi

The outage record here is too thin for a reliable yearly average. Raw events are listed below.

Worst outage on record Mar 21, 2019 4% of customers out · lasted 2.2 hours
Hours without power, average customer per year –h / yr State average 9.8 h · national median 6.6 h
Major outages a year – Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% – Median across major outages, from the peak
Longest single outage 7hours Jun 12, 2023, over 1% of customers out
Outage hours on storm days 45% Share falling on days with a NOAA storm report here
Worst year –
Electricity customers 11,632 ORNL customer model · 0 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 Chickasaw'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

Chickasaw, hours without power per customer

ChickasawUS median countyMississippi average
0 2 4 6 8 10 12 ’15 ’16 ’17 ’18 ’19 ’20 ’21 ’22 ’23 ’24 ’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
Mar 21, 2019 No storm report 518 4% 2.2 h – 888
Jun 12, 2023 Thunderstorms 129 1% 6.8 h – 843
Sep 12, 2024 Hurricane Francine 196 2% 4.2 h – 802
Nov 21, 2024 No storm report 334 3% 3.5 h – 738
Oct 26, 2019 Tropical Storm Olga 152 1% 5.2 h – 597
Nov 26, 2017 No storm report 332 3% 1.5 h – 498
Nov 27, 2022 No storm report 138 1% 3.2 h – 448
May 8, 2025 No storm report 193 2% 2.0 h – 302
Apr 2, 2025 No storm report 333 3% 48 min – 250
Oct 19, 2025 No storm report 195 2% 1.0 h – 195
Aug 13, 2025 No storm report 194 2% 1.0 h – 194
Apr 12, 2020 Thunderstorms 157 1% 1.2 h – 182

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

  • No storm on record 55%
  • Tropical storm 26%
  • Thunderstorms 19%

Who keeps the lights on

Utilities serving Chickasaw

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
Natchez Trace Elec Power Assn Cooperative 676 154 5.75 13.5 13k
City of Okolona Municipal – – – 13.8 4.3k

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 11,632 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 →