The Collaborative International Dictionary of English v.0.48:
Northeaster \North`east"er\, n. A storm, strong wind, or gale, coming from the northeast. Syn: noreaster, nor'easter. [1913 Webster]WordNet (r) 3.0 (2006):
northeaster n 1: a storm blowing from the northeast [syn: northeaster, noreaster]