Synopsis: A low pressure system off the coast will strengthen and move northeast overnight as an accompanying upper level trough pushes eastward across the Mid-Atlantic. All precipitation should cease across the state overnight. High pressure will build into the region creating a dominate westerly flow. A weak shortwave will push across the mid-atlantic Friday Night, followed by a stronger high pressure system. High pressure will then dominate the forecast until the middle of next week.
Short-term: Snow and rain showers should end across eastern Pennsylvania overnight as the strengthening low pressure system move's northeast. As a westerly flow sets into place, mostly sunny skies and breezy conditions will impact the region. Westerly winds will blow across Lake Eerie throughout the end of the week producing lake effect snows in the northwestern portions of the state. A weak cold front will push across the Mid-Atlantic, leaving colder temperatures in it's wake on Saturday. Little moisture should be associated with this trough, besides amplified lake effect snow.
Long-term: A strong high pressure will build into the Mid-Atlantic bringing clear, calm, and milder conditions into next week. Temperatures will finally be near average next week. The next chance of precipitation comes late next week.
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