The upper pattern over the CONUS will be highlighted by amplification, as a good moderate trof for this time of the year builds the upper ridge down stream over the countries mid section.. The upper trof has some chilly air in it as the numerical guidance has 500-1000 thicknesses down to about 558DM Saturday AM. That is good for a potential snow level around 8500K this time of the year with early AM temps well down into the 30s in Mammoth Lakes. The Dweebs note that the RT rear entry region brushes Mono County Friday, and so there may be some showers…especially over the higher terrain.  By Saturday…the main energy leaves the upper trof and so what is left cuts off over CA.  This sets up some unstable air aloft and so we may have showers….Mainly during the afternoon both Saturday and possibly Sunday.

As the system and WX front approaches Thursday it will be windy. Clouds will increase as well as the chance of showers.  Again, this system does not have a lot of moisture with it. However, it may leave a dusting of snow over the higher terrain anytime early Friday into Saturday. Daytime highs on Saturday will be in the 50s…..Stay tuned…..

 

Dr Howard and the Dweebs……………………….:-)