NEW YORK – A nor'easter blustered into New York and New Jersey on Wednesday, bringing wet snow to some areas, knocking down tree limbs and power lines, and inflicting misery all over again on tens of thousands of people still reeling from Superstorm Sandy.

Under ordinary circumstances, a storm of this sort wouldn't be a big deal, but large swaths of the landscape still were an open wound, with the electrical system highly fragile and many of Sandy's victims still mucking out their homes and cars and shivering in the deepening cold.

Thousands of people in low-lying neighborhoods staggered by the superstorm just over a week ago were warned to clear out. Authorities said rain and 60 mph gusts in the evening and overnight could swamp homes again, topple trees wrenched loose by Sandy, and erase some of the hard-won progress made in restoring power to millions of customers.