A nor’easter churned its way up the East Coast on Sunday, washing out roads and prompting air travel delays as heavily populated areas of the Northeast experienced excessive rain, lashing winds and coastal flooding. Across the continent in western Alaska, the remnants of Typhoon Halong brought hurricane-force winds and catastrophic flooding to coastal communities, pushing entire houses off their foundations. Rescue aircraft were sent to the tiny Alaskan villages of Kipnuk and Kwigillingok,