A widespread power outage left nearly 55,000 customers in Wyoming without electricity on Thursday, with Casper and several nearby communities among the hardest hit. The outage began shortly after 12:45 p.m. local time, affecting homes, businesses, and essential services across the region.
Casper and Surrounding Towns Impacted
According to the Rocky Mountain Power outage map, the blackout spread across Casper, Mills, Evansville, and Bar Nunn. Other parts of Wyoming, including Buffalo and Gillette, also reported disruptions.
Similar outages were noted in South Dakota and Utah, though officials have not confirmed whether the incidents are linked.
Wild power outage here in Wyoming. That’s my entire town and the entire city of Casper, the second largest city in the state 👀 pic.twitter.com/VZUfXCNj8x
— MtKilla (@MtKillaLFG) November 13, 2025
Power Restoration Efforts Underway
In a Facebook update, Rocky Mountain Power estimated that electricity could be restored by 9:45 p.m. on Thursday. However, some Casper residents reported power returning as early as 1:15 p.m. in certain neighborhoods.
A resident from Evansville said the electricity had “flicked on and off” multiple times before stabilizing.
We’re aware of a power outage affecting 25,952 customers in Casper, WY and surrounding areas. The cause is under investigation. The estimated time of restoration is 9:45 pm. For updates, please text OUT to 759677 or visit https://t.co/ax6lt84qaH. pic.twitter.com/WrWPa5g7UU
— Rocky Mountain Power WY (@RMP_Wyoming) November 13, 2025
Schools Remain Open Despite Outage
The Natrona County School District addressed the situation on social media, confirming that schools “are currently operating for the school day,” while promising further updates “if things change.”
Cause of the Outage Still Unknown
Officials have not yet identified the cause of the widespread failure. Crews continue to work across Wyoming to restore power and monitor the grid for additional disruptions.
