THANKS to all Who keep up with Evening Forecasts here on Facebook! For those who keep up with my Blog Post, you know this is the Meat and Potatoes of the Weather Talk :)
Lets Talk Weather shall we!
THURSDAY looks to be Mild/Dry and Breezy once again as Ridging develops once again. Winds could be sustained from 15-30mph in parts of Central WY and the wind prone Corridors.
FRIDAY is a little unsettled for some parts of Western WY. A weak wave or impulse of energy is poised to slide through the Wasatch Range of UT and drifting Eastward along I-80 into Western Colorado and Southern WY. Central WY stays Dry but I think a Rain/Mix could slide in through the Evening Hours for Rock Springs/Evanston areas.
<< Both the GFS/NAM Models shows a 1000mb Low South of WY. I still think the best Accumulation still exists in Eastern UT/ Western CO
** SEE What is lurking off the Pacific Northwest Coast? That's our Storm impacting Washington/Idaho dropping into the Rockies late Friday Night.
SATURDAY will be the Day when Conditions start to Deteriorate. The Cold Front will sweep through dropping our Temperatures from the 40°s into the 30°s by Evening for Central WY. Blustery conditions are possible once again, but this is where BOTH Models (GFS/NAM) are showing the Snow starting to increase in Coverage for Western WY.
<< A large 992/996mb Longwave Trof will sludge through 1st as the Front slides, but you can see the Front will meet up with a Developing Low in Eastern UT (1000mb).
* Moderate Snow for Western WY, Light Snow along I-80, but dry for Central WY and along the Laramie's. Plus Snow could break out in the Central Rockies for CO.
SUNDAY is where the best chance of seeing the Light Snow to fall for Central WY and Cheyenne area. However, some of the newest data this Evening paints an ugly picture for you Snow Lovers. The Storm SPLITS! Here's what I am seeing:
<< GFS Model shows Moderate Snow for the WY/MT state line, so YNP, Absaroka's and Bighorns could likely see the Heaviest of Snows for Wyoming. Plus the other piece of energy is falling apart in Colorado.
Central WY...Dry Slotted :( Each System is different in their own way and this isn't the Favorable Central WY/Cheyenne Snow event because of the favorable Storm Track providing Upslope Flow.
I do think much of WY has the Opportunity to see Light Snow but it depends on how much Wind will be with it as it could kill any Dynamics whatsoever.
<< As we roll into late Afternoon through Early Sunday, the storm races off toward the East in the Great Lakes.
STORM TRACK (Preferred) IF you want that Big Snow like all of WY had in April, you want a Cold Front to push South from Montana into our area for the Cold Air. Next you want a deep Low slide along the Pacific Coast and dive into Central California and drop into the Nevada Basin before ejecting Northeast into Utah/Colorado. Then, you want a new area of Low Pressure East of Denver re-form and provide that Upslope all over the I-25 Corridor.
SNOW AMOUNT: This is NOT my Forecast, but this is the amount the NAM is picking out for from Now through early Sunday AM. Looks a little dissapointing for Snow Fans, but latest Model Runs show Western WY & the Bighorns gobbling up the Moisture. Amounts are either an Inch or Two (if best) for Casper and maybe an Inch in Riverton/Cheyenne.
Still there is a lot of time from Now until Saturday before the Storm impacts Wyoming. Which means we will have a better idea of the Storm Track, Intensity, Timing and Snow Amount. See you Thursday!
-ms
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