Winter Weather Advisory In Effect On Wed.

It covers Frederick County, Md.

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 4 PM ESTWEDNESDAY...* WHAT...Mixed precipitation expected. Total snow and sleet  accumulations 1 to 3 inches in the Catoctin Mountains with a  coating to an inch elsewhere. Ice accumulation less than a tenth  of an inch, and confined mainly to the Catoctin Mountains.* WHERE...Frederick MD County.* WHEN...From 7 AM to 4 PM EST Wednesday. Snow and sleet will most  likely overspread the area between 8 AM and 10 AM Wednesday  morning. Precipitation will change to rain by 1 PM. Rain will  freeze on some surfaces over the Catoctin Mountains through mid-  afternoon.* IMPACTS...Plan on slippery road conditions. The hazardous  conditions could impact the morning commute.* ADDITIONAL DETAILS...PRECAUTIONARY/PREPAREDNESS ACTIONS...Slow down and use caution while traveling.When venturing outside, watch your first few steps taken onsteps, sidewalks, and driveways, which could be icy and slippery,increasing your risk of a fall and injury.By The National Weather Service, Sterling, Va.