Here is CTP’s take on the Clipper tomorrow.
Arriving quick on its heels from the NW will be a thickening
layer of clouds and a period of light snow late tonight and
Tuesday morning, thanks to an area of of weak to mdt low-mid
level warm advection, beneath the left exit region of a
110-120kt 300 mb jetlet.
Expect between 1-1.5 inches of snow to fall across the northern
and western mtns per consensus high res model qpf output and a
10-12:1 SLR, with a coating to 0.75 of an inch across the Ridge
and Valley Region of the state.
Although the snow accums will be light, the period of nuisance
winter weather will target the morning rush hour across much of
the CWA. This will likely slicken-up many untreated roads with
overnight min temps in the low to mid 20s over the higher
terrain, and upper 20s throughout the Central Valleys.