Snow beginning on this final day of winter Sunday continues into the first day of spring Monday, this associated with a weak disturbance accompanied by moist flow. Yield Monday with a 2-4" down for first chair and up to another 4-6" through the day, borderline wind hold.

All this precedes the main event Tuesday. Seen in satellite a developing Gulf of Alaska low with a long fetch of tropical moisture. The system develops further Monday as a well defined low  off the PacNW diving down CA Tuesday with deep moisture taking aim at AZ. Tuesday will be dumping with increasing winds through the day, howling Tuesday night into Wednesday morning diminishing through the day. Wednesday morning looking at nearly 2' of new snow with showers and wind diminishing through the day. Light snow lingers Thursday. 

Monday yellow light, borderline winds
Tuesday yellow/red light, dumping and increasing winds
Wednesday red light/yellow, ice build up and howling morning winds
Thursday green

Active western storm track remains in tact through the 2 week forecast, nothing big, but refreshes aplenty, stay tuned.