The National Weather Service issued a winter weather advisory at 12:56 a.m. on Saturday valid from 7 p.m. until Sunday 7 a.m. for Berks, Lehigh and Northampton counties.

The weather service says to be ready for, "Total snow accumulations between 2 and 4 inches."

"Plan on slippery road conditions," explains the weather service. "Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1."

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