A dip in the jet stream will direct colder air across the region Monday through Tuesday, as a slow-moving storm system that has caused widespread flash flooding across southern states finally reaches the EaThe developing system will gain strength off the East Coast and form into a weak nor'easter on Monday.
By Tuesday morning, the coastal storm will have strengthened further, bringing more rain, gusty winds and some high-terrain snow to parts of New England.
Parts of Pennsylvania, New Jersey, New York and Massachusetts could see another 2 inches of rain locally over the next 48 hours.
Meanwhile, snowfall in the mountains and higher terrain of the Northeast could accumulate to 5 inches.st Coast and combines with another system coming out of the Midwest.