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

Power outage history

Tallahatchie County Mississippi

23hours

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

14th most of 74 in Mississippi 3.5× the national median

Worst outage on record Apr 13, 2020 100% of customers out · 90% back in 2.7 days
Hours without power, average customer per year 23h / yr State average 9.8 h · national median 6.6 h
Major outages a year 9.1 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 4.6days Jan 11, 2020, over 1% of customers out
Outage hours on storm days 57% Share falling on days with a NOAA storm report here
Worst year 2020 3.1 days without power, average customer
Electricity customers 5,372 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 Tallahatchie'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

2020 was the worst well-recorded year, at 3.1 days for the average customer. Hatched years have a thin record and are left out of the averages.

Tallahatchie, hours without power per customer

TallahatchieUS median countyMississippi average
0 20 40 60 80 100 9.0 ’15 13 ’16 9.0 ’17 9.6 ’18 8.3 ’19 75 ’20 20 ’21 22 ’22 10 ’23 16 ’24 21 ’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
Apr 12, 2020 Thunderstorms 5,372 100% 4.0 d 2.7 d 206k
Jan 11, 2020 Tornadoes 2,907 54% 4.6 d 2.5 h 116k
May 25, 2025 Thunderstorms 1,227 23% 2.8 d 2.6 d 42k
Nov 28, 2016 No storm report 1,567 29% 23 h 22 h 33k
Mar 30, 2022 Thunderstorms 2,387 44% 2.1 d 27 h 31k
Apr 10, 2024 No storm report 1,589 30% 44 h 26 h 30k
Jun 9, 2021 No storm report 1,536 29% 24 h 22 h 22k
Jan 2, 2022 No storm report 2,379 44% 6.8 h 6.8 h 16k
Jun 5, 2020 No storm report 1,345 25% 30 h 24 h 13k
Mar 14, 2015 No storm report 1,534 29% 8.0 h 8.0 h 12k
Jun 25, 2023 Thunderstorms 765 14% 46 h 38 h 11k
Oct 11, 2020 Hurricane Delta 1,563 29% 10 h 7.8 h 11k

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 +24h

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

  • No storm on record 43%
  • Thunderstorms 36%
  • Tornadoes 13%
  • Heat 4.1%
  • Tropical storm 2.4%
  • Windstorm 1.1%

Who keeps the lights on

Utilities serving Tallahatchie

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
Coahoma Electric Power Assn MS – – – 10.9 92k
Tallahatchie Valley E P A Cooperative 898 597 5.00 12.9 22k
Delta Electric Power Assn Cooperative 1,941 578 5.81 12.7 21k

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 5,372 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 →