High Quality Content by WIKIPEDIA articles! The 2011 Halloween nor`easter, sometimes referred to as Storm `Alfred`, was a large low pressure area that produced unusually early snowfall across the northeastern United States and the Canadian Maritimes. It formed early on October 29 along a cold front to the southeast of the Carolinas. As it moved up the East Coast, its associated snowfall broke records in at least 20 cities for total accumulations, resulting in a rare "white Halloween" two days later.