STEVENS PASS MOUNTAIN WEATHER

12/10/2010 Weather


24HR SNAP SHOT starting at NOON on today


Precipitation “ Water: .10
“ of Snow: 0-1
Freezing Levels - 3000’  falling to 2000’
Winds -  0-10 W shifting E 
General Discussion: Should be an epic pow day with 13” of new and even some sun breaks to boot. Snow will taper off today as high pressure briefly builds over the PNW.

Long-term: Dry condition will last through noon tomorrow with snow developing in the afternoon. An ugly storm with warm temperatures, heavy rain and high winds will arrive on Sunday. Cooler air with more precipitation will return during the first part of the week.

TRENDS AND TIMING
Precipitation: Snow showers will linger over the crest today and then taper off after 4pm. Heavy snow is expected between noon and midnight tomorrow. Snow is then expected to change to rain during the early morning hours. Sunday will be very wet, warm and windy. Storm totals by Monday are calculating out to be 2-4+” of water.

Freezing levels: Freezing levels will slowly fall from 3000’ to 2000’ as cool air fills in east of the crest today. Freezing levels will hold around 2500’ with east flow preserving below freezing surface temperatures through most of the day. Freezing levels will rapidly rise early Sunday morning reaching 6-7000’ during the day.

Winds: Westerly flow will weaken today and shift east overnight. East flow will strengthen tomorrow. SW flow will eventually override the east flow as the warm front moves in early Sunday morning. This storm has significant energy associated with it so expect periods of high winds. jdm