Power outages in Isabel, SD
Live outages for Isabel and the surrounding area, updated every 10 minutes. Isabel has 162 residents.
Right now
No live outage data for Isabel yet.
Outage map
IsabelDewey County
Outage history in Dewey County, which includes Isabel
2014–2025 recordDewey County averaged 9.3 significant outages a year in 2023–2025, about typical for South Dakota counties.
In the 12 months to December 2025, there were 20. Half were over within 1.5 hours; the longest lasted 20 hours, starting November 12, 2025.
The largest on record began November 25, 2025, with 2,114 customers out at once.
9.3significant 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.2 hourstypical (median) length
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Half of significant outages here ended sooner than this, and half lasted longer.20 hourslongest on record (November 2025)
2,114most 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 25, 2025 | 2,114 | 15 minutes | 529 |
| November 14, 2025 | 2,093 | 1.5 hours | 3,140 |
| September 3, 2025 | 2,090 | 6 hours | 7,098 |
| October 29, 2025 | 1,955 | 3 hours | 4,182 |
| July 14, 2025 | 1,945 | 1 hour | 761 |
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.