Forecast By SnowBrains Meteorologist – Eric McNamee
Brought to you by Monarch Mountain
10:40 AM MST, 2/3/2021
A shortwave trough currently over the Northwest will move through Colorado today and tomorrow, bringing 8-24″ of snow for mountain locations.
Another moisture-starved shortwave trough will move through Friday and bring some additional snowfall to the state.
Some light totals are possible through the weekend and early next week.
Resorts that look to see the most snow are Aspen, Steamboat, Wolf Creek, Vail, Loveland, Breckenridge, Copper Mountain, Keystone, Arapahoe Basin, Telluride, Monarch, and Winter Park.
8-24″ of snow is expected for mountain locations across the state through Friday, with some more coming this weekend.
A shortwave trough currently over the Northwest US will move through the state today and tomorrow.
Strong and moist southwest flow will be directed at the state, allowing for widespread precipitation.
There is quite a bit of instability associated with this trough, so there may be the chance for an isolated thunderstorm and thundersnow.
Winter Weather Advisories have been issued for most mountain locations, with the possibility of those being upgraded.
The potent winter storm discussed over the past several days was pushing inland over the Pacific Northwest early this morning as models had predicted. Ahead of this system, moisture in the warm sector ahead of the storm continued to bring clouds and a few showers around, and just after midnight. Surface observations from KDRO and KPSO recorded rain, and rain and unknown precipitation, respectively. Meanwhile, showers occurred as snow at KGUC. Showers will become widespread from late morning through afternoon as the trough moves southeastward across the northern Great Basin by days end. Impressive lift associated with this system according to consensus model output. Jet divergence was indicated to be considerable beneath the left exit region of an anomalously strong 250 mb jet, which models suggest may top 170 kts at its core. In addition, Q derived omega fields showed a broad area of upward motion. Meanwhile, strong southwest winds from 25 to 35 kts at the 700 mb level will provide ample orographic lift as well. Temperatures ahead of the front will be quite mild and close to yesterday`s readings. As a result, valleys can expect rainfall today with a shift to a wintry mix, then snow over northeast Utah and northwest Colorado behind the front. Meanwhile, mountains will see a wintry mix at their bases with snow from around the 8000 foot level and up. -NWS Grand Junction 2/3/2021
Heading into this weekend, high pressure will build over the US West Coast.
However, some plumes of moisture from the Pacific will make their way around the top and down into Colorado.
This will allow for some additional snowfall in the northern mountains through early next week.
This will be great for some soft turns!
Wednesday and Beyond:
Global ensembles are indicating below-average precipitation across southwest Colorado and generally average precipitation for the rest of the state.
Below-average temperatures are expected under the northwest flow.