Today will be partly cloudy and cold with temps in the 20s. The National Weather Service has issued a Wind Chill Advisory in affect until noon because northwest winds 20 to 30 miles per hour will bring the wind chill to zero or below. The photo was taken last night in Chinatown around 6 p.m. Snow!: The Post and the W. Times have stories on the dusting of snow we received overnight and the…