High pressure will slide offshore this morning as a weak Clipper and associated cold front drop southeast across the higher summits. This will translate into most summits starting the day fog free with a mix of sunshine and clouds above before clouds lower to summit fog once again by this afternoon. As the front passes this afternoon and evening, a few light snow showers will be possible leaving a light dusting of a few tenths of an inch of snow before things wind down by Saturday morning. A building ridge on Saturday will allow for summit fog and clouds above to gradually trend towards clearing for the afternoon hours. Despite some expected sunshine later on Saturday, a cold and stiff northwesterly flow will suppress highs to right around 0 for the entire day. The mix of cold and winds will make for even colder wind chills; therefore, a wind chill advisory will go into effect from sunset today and continue through Saturday.