Power outages in Natrona County, WY
Live outage counts for Casper, Mills and Bar Nunn and the rest of Natrona County, updated every 10 minutes from PacifiCorp (Pacific Power / Rocky Mountain Power).
Right now
Outages reported
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Normal: fewer than 0.1% of customers out. Elevated: 0.1% or more. Major outage: 1% or more.11customers without power
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A customer is one electric account, usually one home or business, not one person. Utilities count outages this way.High Plains Power Incno live feedAlso serves this county, per federal utility records. Check its own outage map.
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This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.WAPA-- Western Area Power Administrationno live feedAlso serves this county, per federal utility records. Check its own outage map.
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This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
County outlinePacifiCorp (Pacific Power / Rocky Mountain Power) publishes totals only, not outage locations.
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Some utilities publish only how many customers are out, not where. Their outages are in the counts but can't be drawn on the map.Outage history in Natrona County
2014–2025 recordNatrona County averaged 16.3 significant outages a year in 2023–2025, about typical for Wyoming counties.
In the 12 months to December 2025, there were 17. Half were over within 1.5 hours; the longest lasted 10 hours, starting November 13, 2025.
The largest on record began November 13, 2025, with 43,178 customers out at once.
Outages are most common in August.
16.3significant outages a year (2023–2025)
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.1.5 hourstypical (median) length
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Half of significant outages here ended sooner than this, and half lasted longer.12 hourslongest on record (March 2021)
43,178most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| November 13, 2025 | 43,178 | 10 hours | 87,482 |
| June 27, 2020 | 12,288 | 4.5 hours | 41,592 |
| March 20, 2023 | 11,854 | 4 hours | 39,517 |
| July 28, 2025 | 7,603 | 4 hours | 22,380 |
| June 16, 2023 | 7,538 | 3 hours | 20,730 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
If your power is out
Report it to your utility
- PacifiCorp (Pacific Power / Rocky Mountain Power): outage map and reporting
- Stay at least 35 feet from downed power lines and report them right away.
Food safety
- 0–4 hKeep the fridge closed. It keeps food cold for about 4 hours.
- 4 h+Throw out meat, dairy and leftovers that have been above 40°F for more than 2 hours.
- 24 hA half-full freezer holds about 24 hours if kept closed.
- 48 hA full freezer holds about 48 hours.
Generators, heat and cold
- Run generators outside only, at least 20 feet from windows and doors. Never in a garage.
- Use a battery-powered carbon monoxide alarm.
- Never heat your home with a gas stove or oven.
Nearby counties
Utilities
- PacifiCorp (Pacific Power / Rocky Mountain Power)
- High Plains Power Inc no live feed
- WAPA-- Western Area Power Administration no live feed
- All Wyoming outages