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Couple of showers, t-storms
Mostly cloudy with a t-storm
Variable clouds with a shower
Times of clouds and sun
A wedge of dry air will slowly erode at midweek and will allow drenching showers and thunderstorms to survive the trip into Harrisburg, Pennsylvania, from the Midwest. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.