UPDATE: The advisory was extended until 11 a.m. Sunday. MASON COUNTY — The National Weather Service has issued a winter weather advisory beginning at 8 p.m. Saturday, Dec. 14, through 4 a.m. Sunday, Dec. 15. Freezing rain is expected with total ice accumulations up to .10 of an inch. The advisory area includes Mason, Oceana, Lake, Newaygo, Muskegon, Montcalm, Gratiot,…