massoutage

County annual report · FIPS 29225

2021 Webster County, MO Power Outage Report

In 2021, customers in Webster County, MO went without power for an average of 0.6 hours, a total of 7,434 customer-hours (Missouri average 4.5 hours). That ranks 110th worst of 115 Missouri counties and 2792nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
12,849 customers
Customer-hours out
7,434
Peak customers out
529
Outages ≥1,000 out
0
0 of 10,000+ · 89 total
Longest outage
10h 30m
began December 11, 2021
Rank in state
110th/115
2792nd of 2,974 US

Compared with MO, the US and 2020

Webster County, MO average hours without power per customer compared with state and national averages, 2021Webster County 0.6 hours, Missouri average 4.5 hours, US average 8.9 hours, Webster County, 2020 0.6 hoursWebster CountyWebster County0.6hMissouri averageMissouri average4.5hUS averageUS average8.9hWebster County, 2020Webster County, 20200.6h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Webster County, MO customer-hours without power by month, 2021Jan 704, Feb 195, Mar 441, Apr 315, May 1,306, Jun 49, Jul 295, Aug 614, Sep 11, Oct 865, Nov 158, Dec 2,48301k2k3k704Jan195Feb441Mar315Apr1,306May49Jun295Jul614Aug11Sep865Oct158Nov2,483Dec
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Customer-hours; December was the worst month.

Webster County year over year

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Webster County, MO: average hours without power per customer by year2015: 0.0h; 2016: 0.2h; 2017: 0.1h; 2018: 0.4h, coverage 80%; 2019: 0.4h, coverage 95%; 2020: 0.6h, coverage 95%; 2021: 0.6h, coverage 95%; 2022: 10.1h, coverage 95%; 2023: 39.6h; 2024: 16.5h; 2025: 25.0h0102030400%50%100%0.0h20150.2h20160.1h20170.4h20180.4h20190.6h20200.6h202110.1h202239.6h202316.5h202425.0h2025
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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 Missouri customers tracked each year.

Biggest outages in Webster County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 13, 2021 23:30October 14, 2021 01:001h 30m529794
2April 15, 2021 01:00April 15, 2021 01:1515m483121
3January 1, 2021 09:30January 1, 2021 13:153h 45m228632
4May 27, 2021 18:00May 27, 2021 23:155h 15m2271,078
5August 14, 2021 18:30August 14, 2021 21:002h 30m226565
6October 27, 2021 16:30October 27, 2021 17:1545m22466
7March 8, 2021 15:45March 8, 2021 16:3045m223167
8May 20, 2021 13:15May 20, 2021 14:151h196169
9February 20, 2021 20:30February 20, 2021 21:301h188188
10April 25, 2021 14:00April 25, 2021 15:001h188188

Outage episodes by size in 2021: 16 reached 100+ customers, 0 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 Webster County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Empire District Electric Co20212.4 hrs1.2588 min0.98
Southwest Electric Coop, Inc20212.3 hrs1.001.7 hrs1.00
Laclede Electric Coop, Inc20212.2 hrs1.912.1 hrs1.80
Webster Electric Coop-----
SE-MA-NO Electric Coop-----
City of Seymour - (MO)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Missouri's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 12,849 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. Webster County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Webster County, MO annual power outage report, 2021, 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/2021/missouri/webster-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON