WJZ Tracks A Possible Snowy Saturday; Winter Weather Advisory For Parts Of Md.

BALTIMORE (WJZ/AP) -- Another quick burst of winter is coming our way. A Winter Weather Advisory is effect from midnight Friday until 7 p.m. Saturday. A Winter Storm Warning is in effect for Garrett County and Western Allegany County.

Baltimore city officials say they will extend emergency shelter hours and reach out to vulnerable residents because of low temperatures expected this weekend.

Health Commissioner Oxiris Barbot says the city has ordered a Code Blue cold weather alert for Saturday and Sunday. The National Weather Service says low temperatures are expected to dip into the 20s over the weekend with rain and snow showers expected on Saturday.

City officials say Baltimore has 10 emergency shelters currently operating. They are also reminding residents of cold weather safety tips, including dressing appropriately in multiple layers of loose-fitting clothing, including hats and scarves when outdoors. Space heaters should also be kept away from flammable materials such as curtains, clothing and furniture.

WJZ's First Warning Weather Team is tracking the winter weather.  Here's a breakdown.

TIMELINE:

Rain will arrive after the evening rush hour and spreads areawide by midnight.

NORTH AND WEST:

A rain-snow mix by midnight changes to all snow showers that become off and on until later afternoon Saturday.  Accumulations of 1-2 inches are expected, with more in higher elevations of far Western Maryland.

METRO:

Baltimore and immediate surrounding areas could get a slushy coating to 1"

SOUTH:

Some snow, but mostly rain is expected to affect the area.

Check: Current Conditions| Radar & Maps

FOLLOWING THE STORM:

Wintry mix could impact travel on roads. Drivers are asked to use caution. There could be black ice on the road.

(Copyright 2012 by The Associated Press. All Rights Reserved.)