811 
FXUS65 KBYZ 150440 CCA
AFDBYZ

Area Forecast Discussion...CORRECTED
National Weather Service Billings MT 
940 PM MST Sat Nov 14 2020

.UPDATE...

Forecast in good shape. Update for aviation discussion. Chambers

&&

.DISCUSSION...

Tonight through Sunday Night...

Powerful west/northwest winds will rock the CWA through the
afternoon before decreasing this evening as mid level winds
decrease and we have some decoupling from the boundary layer. 
However, periods of strong winds will continue through Sunday 
night in the foothills.
Upper trof axis moving over the region with an unstable northwest
flow is producing some light rain/snow showers across the eastern
plains. These should not result in much if any accumulations and 
end by evening. There is another slug of Pacific moisture riding 
some impulses into our region from the southwest tonight. This 
should produce a few inches of snow over the high country in the 
Beartooth/Absaroka ranges, but little if anything more than a 
flurry at the lower elevations.

Some orographical snow may linger in the high country Sunday, 
otherwise look for another windy day in and near the foothills, 
which will extend into Sunday night, decreasing late. Seasonal 
temperatures are expected Sunday in the 40s. BT

Monday through Saturday...

Ridging building over the region will bring mainly dry conditions
and less wind to the area for the first part of next week. Some
showers are possible over the west on Monday associated with a
weak disturbance, with dry conditions elsewhere. Ridge axis slides
east over the area on Tuesday, before the ridge breaks down on
Wednesday as multiple weak shortwaves move through the region 
through Saturday. The shortwaves will bring periodic light 
precipitation chances.

Highs will range from the 40s on Monday, to the 50s to lower 60s
on Tuesday and Wednesday. Temperatures gradually cool back to the
30s/40s by the end of the week as heights lower and flow turns
more out of the northwest. Low temperatures in the 20s are
forecast most nights through next week. STP 
&&

.AVIATION...

VFR will prevail at lower elevations. Mountains will be 
frequently obscured in snow showers through Sunday morning.
Chambers

&&

.PRELIMINARY POINT TEMP/POPS...

    Sun     Mon     Tue     Wed     Thu     Fri     Sat     
-----------------------------------------------------------
BIL 024/046 030/047 030/060 039/058 032/049 027/044 024/041
    00/B    00/B    00/B    01/B    11/B    11/B    11/B
LVM 024/046 030/048 034/061 038/052 029/046 024/041 019/039
    21/N    01/N    10/N    13/R    22/O    11/B    22/S
HDN 022/050 028/051 027/062 035/061 030/051 025/046 022/043
    00/B    00/B    00/B    00/B    11/B    11/B    12/S
MLS 021/042 028/044 026/054 032/056 029/049 025/043 022/040
    00/B    00/B    00/B    00/B    11/B    11/B    11/B
4BQ 021/047 030/048 028/063 039/061 032/051 026/045 023/042
    00/B    00/U    00/B    00/E    01/B    11/B    11/B
BHK 019/040 027/043 024/053 032/056 029/048 023/041 020/040
    00/U    00/U    00/B    00/B    01/U    01/B    11/B
SHR 021/048 025/049 026/065 035/060 027/051 023/043 019/042
    00/B    00/B    00/B    01/B    11/B    11/B    22/S

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.

&&

$$
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