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Pleasant Conditions Roll into the New Week; Snow Chances on the Horizon

December 7th, 2020
The European Model shown here anticipates snowfall to arrive in Cheyenne overnight Thursday...
The European Model shown here anticipates snowfall to arrive in Cheyenne overnight Thursday into Friday as the Jet Stream dips later this week, bringing the next cold front and chance for snow.(KGWN)
Published: Dec. 7, 2020 at 12:29 PM CST
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Things warmed up around the state through the course of the weekend, with Sunday seeing some decent temperature increases around the state. That trend will stick with us along with the sunshine for the first half of this week thanks to a ridging pattern that has built high pressure over the Rocky Mountain region. Come Thursday is when things will change and temperatures around the state will plummet. The Jet Stream will dip over the western US, setting up a trough pattern and bringing a low pressure system to the region. Temperatures will top off in the 60s for many of us beginning tomorrow and will remain there on Wednesday, then highs will return to the lower 40s and upper 30s on Thursday before returning to the upper 20s and lower 30s by Friday.

As for snow chances, the window seems to be between Thursday evening and Saturday morning. As of now the two main long range weather models, the GFS (American) and Euro, are in disagreement in terms of timing for snow. The American as of now is thinking more Friday Night into Saturday Morning, especially when it comes to Cheyenne. The European meanwhile is thinking more Thursday night into Friday. Both models do agree on the fact that not much snow is expected. Temperatures will rebound over the weekend and are expected to be above average for most of Wyoming into next week. The precipitation trend is slightly above average for this time of year, which is good news considering the current drought conditions.

Temperatures are expected to remain slightly above average over the weekend and into next week...
Temperatures are expected to remain slightly above average over the weekend and into next week around Wyoming.(KGWN)
Precipitation amounts are expected to be slightly above average over the weekend and into next...
Precipitation amounts are expected to be slightly above average over the weekend and into next week.(KGWN)

CHEYENNE, Wyo. (Wyoming News Now) -

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