What areas were most affected by the windstorm?
Cheyenne and Casper, Wyoming, experienced the most significant impacts, including high wind gusts, power outages, and highway closures.
News / Weather
A severe windstorm impacted Wyoming on Thursday, March 12, 2026, causing significant disruption across the state. Cheyenne experienced peak wind gusts of 92 mph, leading to power outages, downed trees, and multiple closures. The storm has p...
### Background The windstorm developed rapidly on Thursday, bringing sustained high winds and gusts that exceeded 90 mph in some areas. The National Weather Service issued high wind warnings and red flag warnings, indicating critical fire weather conditions due to strong winds and low humidity.
### Impact on Transportation Several major highways were closed due to the windstorm. I-25 was closed to commercial traffic from Douglas to the Colorado border, while I-80 westbound from Laramie to Rawlins was closed to all traffic due to multiple crashes. These closures disrupted travel and commerce, leaving many stranded.
### Power Outages Black Hills Energy reported numerous power outages in Cheyenne, affecting thousands of customers. Rocky Mountain Power also reported widespread outages in the Casper area, impacting around 1,400 customers. Restoration efforts are ongoing, but some residents may not have power restored until late Thursday night.
### Community Response Cheyenne city officials suspended trash collection and bus services, while Laramie County School District 1 closed schools for Friday. The Cheyenne Regional Medical Center closed several clinics, advising patients to reschedule appointments. Emergency services are working to address downed power lines, fallen trees, and other hazards.
### How to Prepare - Monitor weather updates and advisories from the National Weather Service. - Secure outdoor items that could be blown away by the wind. - Charge electronic devices and prepare for potential power outages. - Avoid unnecessary travel during high wind conditions. - If driving, be aware of high-profile vehicles and potential blow-over risks.
### Who This Affects Most - Residents in Cheyenne and Casper experiencing power outages. - Travelers and commuters affected by highway closures. - Businesses and organizations that have had to suspend operations. - Schools and families dealing with closures and schedule changes.
Cheyenne and Casper, Wyoming, experienced the most significant impacts, including high wind gusts, power outages, and highway closures.
Restoration times vary, but officials estimate that most customers will have power restored by late Thursday night.
I-25 is closed to commercial traffic from Douglas to the Colorado border, and I-80 westbound from Laramie to Rawlins is closed to all traffic.
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