massoutage

County annual report · FIPS 53015

2024 Cowlitz County, WA Power Outage Report

In 2024, customers in Cowlitz County, WA went without power for an average of 5.1 hours, a total of 260K customer-hours (Washington average 12.1 hours). That ranks 17th worst of 34 Washington counties and 1580th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
5.1
50,751 customers
Customer-hours out
260K
Peak customers out
7,598
Outages ≥1,000 out
20
0 of 10,000+ · 639 total
Longest outage
11d 15h
began May 24, 2024
Rank in state
17th/34
1580th of 2,990 US

Compared with WA, the US and 2023

Cowlitz County, WA average hours without power per customer compared with state and national averages, 2024Cowlitz County 5.1 hours, Washington average 12.1 hours, US average 12.6 hours, Cowlitz County, 2023 0.7 hoursCowlitz CountyCowlitz County5.1hWashington averageWashington average12.1hUS averageUS average12.6hCowlitz County, 2023Cowlitz County, 20230.7h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Cowlitz County, WA customer-hours without power by month, 2024Jan 78K, Feb 3,747, Mar 20K, Apr 26K, May 8,415, Jun 11K, Jul 5,641, Aug 15K, Sep 10K, Oct 22K, Nov 18K, Dec 43K020k40k60k80k78KJan3,747Feb20KMar26KApr8,415May11KJun5,641Jul15KAug10KSep22KOct18KNov43KDec
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Customer-hours; January was the worst month.

Cowlitz County year over year

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Cowlitz County, WA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 0.0h, coverage 71%; 2019: 0.0h, coverage 86%; 2020: 0.1h, coverage 87%; 2021: 0.1h, coverage 87%; 2022: 0.1h, coverage 87%; 2023: 0.7h; 2024: 5.1h; 2025: 4.5h02460%50%100%n/a2015n/a20160.0h20170.0h20180.0h20190.1h20200.1h20210.1h20220.7h20235.1h20244.5h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Washington customers tracked each year.

Biggest outages in Cowlitz County, 2024

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 25, 2024 20:30April 26, 2024 00:153h 45m7,59814K
2January 9, 2024 08:15January 9, 2024 20:4512h 30m7,47932K
3December 26, 2024 05:45December 29, 2024 22:303d 16h5,11335K
4October 27, 2024 09:00October 27, 2024 19:3010h 30m3,4099,784
5March 19, 2024 05:45March 19, 2024 09:454h2,9327,528
6August 1, 2024 15:45August 2, 2024 03:1511h 30m2,1492,934
7January 9, 2024 23:30January 11, 2024 05:151d 5h1,92913K
8June 6, 2024 05:45June 6, 2024 19:4514h1,7431,521
9July 14, 2024 09:15July 14, 2024 18:459h 30m1,6632,906
10November 19, 2024 23:30November 20, 2024 14:4515h 15m1,5813,154

Outage episodes by size in 2024: 93 reached 100+ customers, 20 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Cowlitz County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20244.6 hrs1.672.0 hrs1.11
PUD No 1 of Lewis County202412.0 hrs3.7110.1 hrs3.30
PUD No 1 of Cowlitz County20244.4 hrs1.722.1 hrs1.00
Bonneville Power Administration-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Washington's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 50,751 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Cowlitz County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Cowlitz County, WA annual power outage report, 2024, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/washington/cowlitz-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON