Warm air that has been pent up over the Plains much of this past week has made the trip to Pittsburgh and will stick around into early next week.
The pattern will bring high temperatures in the 80s most days through Tuesday.
While there will be long episodes of rain-free weather, the pattern can also deliver a few disruptive downpours.
While some dry air will mix down from aloft and allow more in the way of sunshine on Mother's Day, it may not be enough to prevent spotty, pop-up thunderstorms from developing during the afternoon and evening.
Cooler air is projected to move in at midweek.
Following a southward push of cool, dry air at midweek, clouds, showers and higher humidity will return to the Northeast.
Even though the tremendous rains have come and gone, flooding will continue on the major rivers in the South Central states for the next couple of weeks.
Severe weather, including isolated tornadoes, will once again target the nation's midsection into Wednesday night.
Summer heat to set the stage for thunderstorms from England to France and Germany on Friday and Saturday.
Major Hurricane Blanca will threaten Baja California with flooding rain and damaging winds this weekend.
While the center of Andres will remain a thousand miles away, its moisture will still get drawn into the Western United States and enhance thunderstorm activity later this week.
Harrisburg, PA (1985)
Golf ball-sized hail and 60 mph winds.
Heavy, flooding rains. Milton received 15.57 inches while Crest view was deluged by 11.44 inches.
Dulles Airport, Washington, D.C. (1991)
4.25 inches of rain -- normal for all of June is 4.23 inches.