Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. 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