Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
445 PM EDT Sun Mar 31 2019

Valid 00Z Mon Apr 01 2019 - 00Z Thu Apr 04 2019

...Oregon/California to the North and Central Rockies...
Days 1-3...

Low pressure approaches the CA/OR border Monday with warm/high PW
air pushing inland with snow on the OR/CA Cascades above 7000ft.
The snow level drops to around 5000ft Monday night as the
low/trough shifts inland with western snow elevations 5000 to
7000ft as the trough shifts inland to the central Rockies through
Wednesday/Day 3.  The heaviest snow is expected during the Day 2.5
period with high probabilities for six inches over the central
Sierra Nevada, Uinta mountains, and mountains of WY.  Day 3
probabilities are moderate to high for four inches over the CO
Rockies.


The probability for significant freezing rain (0.25 inches) is
less than 10 percent all 3 days.


Jackson