Cool with More Snow This Weekend, Warmer and Drier Next Week
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Author:  wxgeek [ Feb 23, 2018 4:58 pm ]
Post subject:  Cool with More Snow This Weekend, Warmer and Drier Next Week

Deep long wave upper trough remains over the western U.S. with systems from the Gulf of Alaska dropping into the West with precip. The next in a series of systems is currently over the Great Basin and will move into CO this afternoon through Saturday morning. Snow has begun to move into western CO this afternoon, and will intensify tonight across the mountains and move into eastern CO Saturday morning. Snow amounts look to be in the 3-7 inch range for the mountains, with a trace to 2 inches possible in our foothills between 5 pm this evening through about midnight. Farther east, eastern plains may get 2-4 inches as system intensifies farther east, while the Urban Corridor should see less than an inch. Temps will remain below average on Saturday as snow exits the state with a few lingering flurries in the mountains.

Next system will move from the Pacific Northwest into CO Saturday night into Sunday. Snow will move into the mountains along and west of the Divide Saturday evening into Sunday morning with an additional 2-5 inches of snow, as snow diminishes after noon on Sunday. Areas east of the Divide not likely to see any accumulating snow from this system, but temps will remain on the cool side of average.

For next week, yet another system digs down the West Coast Monday into Tuesday, which will leave CO mostly dry and temps may actually get back to near average values. This system is forecast move move across southern AZ and NM so that most precip will remain south of CO on Wednesday. Southwest and south central mountains may see some light snow, but not much north of US 50 currently expected. If the system end up moving farther north, then more of CO could see precip on Wednesday. Temps should be close to seasonal norms Wednesday.

Later next week models bring another system down from the Gulf of Alaska but move it inland over Montana next weekend. Thus Thursday and Friday look to remain dry statewide as temps remain near average. Precip may move into western CO Saturday afternoon and across most of CO by Sunday morning. ECMWF is currently much wetter than GFS on Sunday, so will have to see how this plays out. Earlier in the week models were digging this system down over CA, so not a lot of confidence in next weekend at this point.

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