After locally drenching showers and thunderstorms affect Harrisburg, Pennsylvania, into Saturday night, some sunshine will brighten mom's day on Sunday.
A slow-moving storm affecting the Central states much of this week will pick up some forward speed this weekend.
As moisture with the storm system drifts through into Saturday night, there is the potential for locally heavy showers and thunderstorms and the corresponding travel delays and disruptions to outdoor activities. Even with the threat of downpours, there will be substantial breaks of rain free conditions.
A small area of high pressure should be just strong enough to allow dry air to mix down from aloft and break up clouds and prevent shower activity in the Northeast on Sunday.
With more of a westerly flow of air, chilly air from the Atlantic Ocean and the Chesapeake Bay will be shut off.
The pattern will bring the warmest weather of the year so far. Temperatures will climb well into the 70s to near 80 F in many locations through Sunday. Temperatures could even touch the 90-degree mark in some areas early next week.
Through Saturday, the highest temperature of 2014 thus far at Harrisburg International Airport has been 81 on April 13.
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