massoutage

County annual report · FIPS 30029

2016 Flathead County, MT Power Outage Report

In 2016, customers in Flathead County, MT went without power for an average of 2.4 hours, a total of 160K customer-hours (Montana average 1.8 hours). That ranks 2nd worst of 8 Montana counties and 1176th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
65,575 customers
Customer-hours out
160K
Peak customers out
4,728
Outages ≥1,000 out
19
0 of 10,000+ · 682 total
Longest outage
1d 3h
began October 10, 2016
Rank in state
2nd/8
1176th of 2,391 US

Compared with MT, the US and 2015

Flathead County, MT average hours without power per customer compared with state and national averages, 2016Flathead County 2.4 hours, Montana average 1.8 hours, US average 3.9 hours, Flathead County, 2015 3.5 hoursFlathead CountyFlathead County2.4hMontana averageMontana average1.8hUS averageUS average3.9hFlathead County, 2015Flathead County, 20153.5h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

CSVJSON
Flathead County, MT customer-hours without power by month, 2016Jan 5,473, Feb 2,982, Mar 2,910, Apr 13K, May 25K, Jun 16K, Jul 25K, Aug 9,869, Sep 6,222, Oct 24K, Nov 6,785, Dec 23K010k20k30k5,473Jan2,982Feb2,910Mar13KApr25KMay16KJun25KJul9,869Aug6,222Sep24KOct6,785Nov23KDec
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Customer-hours; May was the worst month.

Flathead County year over year

CSVJSON
Flathead County, MT: average hours without power per customer by year2015: 3.5h; 2016: 2.4h; 2017: 3.9h; 2018: 2.2h, coverage 16%; 2019: 1.6h, coverage 75%; 2020: 13.2h, coverage 76%; 2021: 8.3h, coverage 76%; 2022: 8.9h, coverage 76%; 2023: 2.3h; 2024: 6.8h; 2025: 12.2h0510150%50%100%3.5h20152.4h20163.9h20172.2h20181.6h201913.2h20208.3h20218.9h20222.3h20236.8h202412.2h2025
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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 Montana customers tracked each year.

Biggest outages in Flathead County, 2016

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 25, 2016 13:45October 25, 2016 22:158h 30m4,7282,964
2July 8, 2016 11:15July 8, 2016 16:155h3,7976,997
3October 10, 2016 09:00October 11, 2016 12:451d 3h3,50417K
4May 19, 2016 11:00May 19, 2016 16:455h 45m2,5388,109
5May 9, 2016 01:15May 9, 2016 10:309h 15m1,9254,416
6August 10, 2016 16:45August 10, 2016 22:456h1,9221,502
7September 3, 2016 17:30September 3, 2016 19:001h 30m1,9181,922
8May 11, 2016 04:45May 11, 2016 11:156h 30m1,9083,366
9July 12, 2016 16:15July 12, 2016 22:005h 45m1,892955
10April 24, 2016 05:45April 24, 2016 08:302h 45m1,8814,223

Outage episodes by size in 2016: 101 reached 100+ customers, 19 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 Flathead County reported on EIA Form 861 for 2016, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Flathead Electric Coop Inc20163.3 hrs1.493.1 hrs1.43
Lincoln Electric Coop, Inc20167.3 hrs-7.3 hrs-
Glacier Electric Coop, Inc-----
USBIA-Mission Valley Power-----

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 Montana's customers in 2016; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 65,575 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. Flathead County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Flathead County, MT annual power outage report, 2016, 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/2016/montana/flathead-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON