2 Blackhawks down in Utah, no injuries

[albatross]

Originally Posted by JimEli

Mt. Hood maybe? 2002? USAF H60? Insufficeint power to HOGE? No loss of visual, just needed more-better training interpreting the operator's manul performance data.

https://www.youtube.com/watch?v=L7QcYZ0qLHU

Mountain Downflow is not your friend!
I speculate that this may have been a contributing factor in this case.
Heavy, cold air from up the mountain flows rapidly down the slope.
A katabatic wind is an example but it can be a localized phenomenon too. https://en.wikipedia.org/wiki/Katabatic_wind