Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Average monthly snowfall (1971 through 2015) in inches for the four National Climate Data Center climate sites in our forecast area
SITE	January	February	March	April	October	November	December	Total
PHL	6.4	6.6	3.2	0.6	0.1	0.4	2.0	19.3
ABE	11.1	9.4	5.7	0.8	0.1	1.4	3.8	32.3
ACY	4.6	5.5	1.3	0.3	0	0.3	1.5	13.5
ILG	7.5	6.3	2.2	0.3	0.1	0.6	1.9	18.9

Average number of days (1971 through 2015) of one inch or more of snowfall for the four National Climate Data Center climate sites in our forecast area
SITE	January	February	March	April	October	November	December	Total
PHL	1.9	1.5	0.8	0.2	0	0.2	0.5	5.1
ABE	2.8	2.2	1.2	0.2	0.1	0.4	1.4	8.3
ACY	1.6	1.3	0.5	0.1	0	0	0.5	4.0
ILG	2.2	1.4	0.5	0.2	0	0.2	0.7	5.2