Continued snowfall will arrive after 1pm today, which will lead to hazardous driving conditions, especially at night. The heaviest snowfall is expected to occur between 5pm and 11pm tonight, with the most consistent snowfall gradually tapering off.
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Most areas will see 3 to 5 inches of snow over the weekend. Some quantities can easily reach a half-foot south and east of Pittsburgh. Isolated double-digit totals are possible on ridges in eastern Westmoreland and eastern Fayette counties, including ski resorts.
Wind chills will drop below freezing later tonight after the heavy snow passes, and could reach -10 degrees Sunday morning. Additionally, there will be lake effect snow showers on Sunday, especially north of Pittsburgh, with more accumulation expected given how cold it will be.
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The cold air mass persists into Monday, but improvements finally begin on Tuesday as a pattern change takes hold. Temperatures will rise into the 50s on Thursday before cooling again on Friday.
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