The disruption began after two major 500-kilovolt transmission lines near Medicine Bow tripped, triggering an abnormal ...

Thousands are without power across western South Dakota and Wyoming. Casper, Wyoming, is heavily impacted with nearly 55,000 ...

Data from Power Outage indicated that disruptions extended into South Dakota. Rocky Mountain Power reported that roughly ...

A massive power outage has left most of the northeast corner of Wyoming in the dark, along with areas in Montana and South Dakota. Nearly 84,000 ...

A large power outage left Sheridanites and other Wyoming communities without electricity for most of the afternoon Thursday.

The outage, reported shortly after 12:45 pm local time, is affecting much of the city along with surrounding communities ...

Preliminary reports indicate main transmission lines are now working, but crews need more time to bring distribution lines back, Ludikhuize said.

A massive power outage hit multiple cities in South Dakota and Wyoming on Thursday afternoon. Among the cities affected were ...

P.M. — The Rapid City Fire Department reminds residents that 911 is for emergencies only and should not be used to report or ...

Up to 95,000 customers experienced a massive power outage on Thursday afternoon, sweeping across central and north-eastern ...

Residents in neighborhoods west of Cheyenne got five hours' notice Monday afternoon of an emergency power shut-off. Black ...