Here Are The Latest Snowfall Estimates For Saturday Storm In PA

A winter weather advisory has been issued for parts of eastern Pennsylvania, including portions of Bucks and Montgomery counties, as well as for Berks, Lehigh and Northampton counties.

The National Weather Service says towns including Collegeville, Pottstown, Chalfont and Perkasie can expect up to 4 inches of snow from a winter storm Saturday. The advisory is in effect from 10 a.m. Saturday to 1 a.m. Sunday.

Communities south of the warning area may not experience accumulating snow, forecasters say.

Here is the current map of snow accumulation predictions:

"Snow accumulations near the Interstate 95 corridor are quite uncertain; however, warming surface temperatures on Saturday are expected to result in a transition to sleet and rain and preclude more significant accumulations from occurring," the National Weather Service said.

For communities in the warning area, snow is expected in the late morning and into the afternoon Saturday. The heaviest snow is likely during the afternoon. Snow may mix with sleet or rain by early Saturday evening before tapering off overnight.

Area residents should expect poor driving conditions including slippery roads.

Even in the warning area, snow may mix with sleet and rain during in late afternoon and evening, reducing overall accumulations, forecasters say.

Here is the forecast:

Today: Sunny, with a high near 30. Northwest wind 9 to 15 mph, with gusts as high as 26 mph.

Tonight: Increasing clouds, with a low around 16. Northwest wind 5 to 8 mph becoming calm after midnight.

Saturday: Snow before 4 p.m., then snow possibly mixed with sleet. High near 36. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 100 percent. New snow and sleet accumulations of 2 to 4 inches are possible.

Saturday night: Rain and snow likely, possibly mixed with sleet before 10 p.m., then a chance of rain between 10 p.m. and 4 a.m., with a chance of rain and snow after 4 a.m. Cloudy, with a low around 31. South wind around 11 mph. Chance of precipitation is 60 percent. New snow and sleet accumulations of less than a half-inch are possible.

Sunday: A chance of snow before 7 a.m. Mostly sunny, with a high near 36. West wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30 percent. Little or no snow accumulation is expected.

Sunday night: Partly cloudy, with a low around 19.

Monday: Mostly sunny, with a high near 31.