11:30 AM MST, Tuesday, January 12, 2021
A windy period is coming to the Front Range region beginning as early as Wednesday afternoon, peaking Wednesday night/early Thursday, and possibly lingering into Thursday. There are two phases of potential high wind: the warm “chinook” phase late Wednesday, and the colder “bora” phase Wednesday night into Thursday.
The first phase before the cold front may bring some localized areas of westerly wind gusts to 50 mph in and along the foothills Wednesday afternoon and evening. The chance for high wind during this phase is smaller to the east of I-25.
The second phase follows a Pacific cold front Wednesday night. Blustery winds in this phase may exceed 70 mph and spread out onto the plains late Wednesday night and early Thursday. As the day progresses on Thursday, the strongest winds may subside, but there is a good chance it will be somewhat blustery most of the day. There will probably be some snow and blowing snow above treeline and at the high passes late Wednesday and early Thursday.
Relatively cool weather will be reinforced behind another cold front Friday night. The coldest temperatures so far this winter season have been during the cold wave of October 26-27 (it got down to 4 degrees at both Denver and Boulder). We have not seen anything that cold since and don’t see anything that cold in the near future, which is rather unusual.