It's called a Chinook in my current location - very warm and windy, and can arrive very quickly.
In Pincher Creek, the temperature rose by 41°C, from -19 to 22°C, in one hour in 1962.
https://en.wikipedia.org/wiki/Chinook_wind
Snow tends to evaporate rather than melt and it can be very dusty, as the wind picks up the sand used on the roads after snow falls.
The Chinook Arch often develops as a horizon-to-horizon continuous lenticular cloud:
PS Brits please note: it's pronounced Shin-ook (as in look) and not Chin-uke (as in Luke), which seems to be preferred "Rupert" pronunciation for helicopters of the same name.
