SUNDAY 'SNOW' DAY

Snow is-a-coming!  Remember folks, BUS BUS BUS (Brings Us Snow)

This past week has been very mild and Warm with breezy conditions, including our Turkey Day in the Middle 40°s here in Casper.  It was a very Warm Parade evening tonight in the 40°s, but it was great seeing you all out there as I was passing out Candy Canes and Peppermints.

Okay, lets get to the Meat and Potatoes~  The Snow!~

Low Pressure swinging from our Northwest will bring a wave of Snow and Cold Air from Canada beginning now (Saturday Night) in NW WY and will filter through the rest of WY on Sunday.  Winds will shift from the Southwest to the North and Northwest.

Here is what the Surface Map could look like at 11AM Sunday.  High Pressure will take shape behind the snow and could plum-it our Overnight Lows in the Teens again.  Should start seeing snowfall by mid-afternoon here in Casper and could last through Monday.  Not a BIG snow, but highest amounts will stay in the typical spots of the Higher Elevations.

Winter Weather Advisories are out in the Bighorns and in the Southern Range just West of Kayce.  YNP, Gros Ventres, Tetons, Absaroka's are under the advisory.

NWS out of Riverton Winter Weather Advisory Critera:  

Lower Elevations/Valley (Teton Valley) 3-6"
Highest Elevations~ 6-12"




Here is what the NAM Hi-Resolution snowfall map that is out for 60hrs has:

Only Difference I see is that they added the Wind Rivers with higher snowfall rates and in the Tetons.  As the Low Pressure slides farther East of the Divide, the Bighorns will get its share of the Snow of 3-6".  
**Casper Area, maybe an inch or two.  BUT, Casper Mountaint could see just a little bit higher than that of 2-4" and down along the Northern fringes of the Laramie Range in Southern Converse and through Platte/Goshen Co. (Wheatland/Torrington)
**Black Hills~ Could see a Few Inches in the Sundance area and just East of Newscastle as the Low tracks  Sunday Night.

GFS from Earl Barker's Page 0z run: 

 This is for 120-HR's out and now how Central WY is scarce in the Basins (Riverton/Worland).

-6-12" for Absaroka's, Tetons, Gros Ventres, WY Range, and even East into the Bighorns.

-GFS has maybe 3-4" for Wind River's though.  All depends on whether we'll get that different wind flow to help the Wind Rivers in a good snow or not.  Not a decent upslope for Casper; only painting Dusting to 2"





And from the Same Site, but for the NAM 0z Run:

-BIGHORN Country, This run is for you, but some of this could be with the rain mixed in.

Casper-...Its like nails on a chalkboard..WHERE IS THE SNOW?  We average 12" of Snow for November..

-Forgot to mention, it may not even be a Southern WY snow, due to the track of the Low Pressure moving more North and East of the Laramies.  Include, its hard to get something over the Rattlesnakes and Green Mountains, too.



FINAL THOUGHTS:  Though most of the snow hasn't fallen yet or the bulk of the snow here in WY, still time to tell on this one and the track could shift a more West making Central WY and SW WY to see a little more snow.  The Winds could change and also the Low could track to make a hopeful 'upslope' effect here in Casper...

I'll Update on the progress on Sunday!  Stay Tuned!