Winter Weather Advisory issued December 18 at 1:53PM PST until December 19 at 10:00PM PST by NWS

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 10 PM PST SATURDAY ABOVE 5000 FEET... * ACCUMULATIONS...SNOW ACCUMULATION OF 4 TO 8 INCHES...WITH AMOUNTS UP TO 11 INCHES POSSIBLE IN THE HIGHER ELEVATIONS OF YOSEMITE PARK. * TIMING...SNOW WILL BEGIN EARLY MORNING SATURDAY AND LAST

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/1NY5o0o