Why 'long'? Well, another wave of Disturbances will slide off of the Pacific and incorporate some South West flow ahead and some Cooler North West flow from Canada behind it.
This is the, 5-DAY HPC, SHOWN ABOVE, map showing you the amount of Precipitation, mainly snow in WY, we could see through Saturday Evening. We will have waves of Low Pressure, but I don't see any possible Jet Stream energy with these as the bulk of the activity will remain to our West in Idaho and Montana.
If I am seeing this right, maybe .10"-.25" of QPF here in Casper.
Majority of this will remain to our Higher Elevation in Western WY; why they are under a Winter Storm Watch through Wednesday Midnight.
NOAA's Winter Short Range Ensemble Forecast (SREF) shows the amount of snow through Friday 2AM. Western WY, Bighorns, Black Hills, and Sierra Madres will see a good chance of light snow. Even a 'speck' could creep on Casper Mtn.
CHRISTMAS LOVERS...Here is a great Map for y'all!
Remember...Snow Depth over 1" determines it to be a White Christmas. With that being the case, Western Mtns, Wind Rivers, Bighorns. I'll be updating this Map about 2x a Week to see if 'Your' area will have a Bing Crosby Christmas (White Christmas)
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