– 0% of Cass out 0 customers out in Texas

Power outage history

Cass County Texas

25hours

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

23rd most of 240 in Texas 3.8× the national median

Worst outage on record Jun 16, 2023 56% of customers out · 90% back in 5.3 days

Hours without power, average customer per year 25h / yr State average 9.0 h · national median 6.6 h

Major outages a year 9.6 Peaks over 10% of customers or 50,000 customers

Typical time to restore 90% 3hours Median across major outages, from the peak

Longest single outage 8.7days Jun 14, 2023, over 1% of customers out

Outage hours on storm days 71% Share falling on days with a NOAA storm report here

Worst year 2023 2.6 days without power, average customer

Electricity customers 15,244 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 Cass'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 2.6 days for the average customer. Hatched years have a thin record and are left out of the averages.

Cass, hours without power per customer

CassUS median countyTexas 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
Jun 14, 2023	Tornadoes	8,589	56%	8.7 d	5.3 d	721k
Apr 24, 2020	Thunderstorms	6,402	42%	6.0 d	2.9 d	240k
Jan 9, 2025	Winter storm	7,063	46%	2.6 d	32 h	121k
Mar 4, 2025	No storm report	10,547	69%	2.4 d	20 h	119k
Nov 4, 2022	Tornadoes	3,131	21%	2.9 d	41 h	89k
Apr 26, 2024	Thunderstorms	2,831	19%	3.9 d	44 h	80k
Jun 3, 2024	Flooding	11,027	72%	29 h	21 h	77k
Apr 4, 2025	Flooding	3,764	25%	40 h	11 h	49k
May 8, 2020	Thunderstorms	3,645	24%	35 h	29 h	45k
Mar 21, 2022	Tornadoes	2,359	15%	46 h	38 h	41k
Jul 8, 2024	Hurricane Beryl	3,673	24%	25 h	17 h	36k
May 13, 2023	Thunderstorms	2,220	15%	38 h	36 h	34k
Jul 10, 2019	Heat	3,145	21%	24 h	20 h	32k
Sep 24, 2023	Thunderstorms	2,485	16%	33 h	7.5 h	28k
Feb 25, 2015	Winter storm	2,132	14%	31 h	27 h	27k
Apr 18, 2019	No storm report	2,688	18%	30 h	27 h	27k
Apr 8, 2024	Thunderstorms	2,678	18%	32 h	17 h	27k
May 21, 2022	No storm report	2,725	18%	23 h	16 h	25k
Jun 19, 2019	No storm report	1,921	13%	26 h	20 h	22k
Jun 23, 2019	No storm report	2,461	16%	26 h	13 h	19k
Apr 14, 2018	Thunderstorms	6,162	40%	24 h	1.2 h	19k
Oct 20, 2019	Thunderstorms	2,500	16%	19 h	13 h	17k
Jun 29, 2019	No storm report	1,993	13%	21 h	20 h	16k
Apr 5, 2023	Thunderstorms	3,518	23%	13 h	9.2 h	16k
Jul 3, 2018	Thunderstorms	1,967	13%	20 h	16 h	16k
Jun 26, 2024	Heat	3,201	21%	22 h	7.8 h	16k
May 8, 2019	Flooding	2,056	13%	27 h	18 h	16k
Jul 16, 2023	Heat	1,798	12%	17 h	15 h	15k
Jul 9, 2022	Thunderstorms	1,130	7%	26 h	22 h	15k
Jun 10, 2023	Thunderstorms	4,178	27%	9.2 h	7.5 h	14k

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

Tornadoes 31%
No storm on record 29%
Thunderstorms 23%
Winter storm 5.8%
Flooding 5.2%
Heat 4.3%
Tropical storm 1.7%

Who keeps the lights on

Utilities serving Cass

As each utility reports to the Energy Information Administration for its whole Texas territory, not this county alone. Outage minutes include major storm days.

Utility	Type	Outage min / yr	Excl. major storms	Outages / yr	Residential ¢/kWh	Customers
Southwestern Electric Power Co	Investor Owned	467	312	2.98	12.6	157k
Upshur Rural Elec Coop Corp	Cooperative	1,332	714	5.60	12.7	45k
Bowie-Cass Electric Coop, Inc	Cooperative	2,614	1,022	5.37	13.3	35k
Southwest Arkansas E C C	Cooperative	–	–	–	13.3	1.1k

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

Marion 46 h
Cass (this county) 25 h
Morris 21 h
Caddo, LA 19 h
Miller, AR 13 h
Bowie 9.8 h

Across Texas

Where it is darkest

Hours / yr64+

All Texas 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 15,244 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 →