National Weather Service United States Department of Commerce

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 >

Snow and rain will develop this afternoon. With subfreezing temperatures persisting across northwest to central South Dakota, freezing rain is expected tonight through early Thursday morning. Ice accumulations up to one tenth of an inch are possible. Warmer weather will work into the area Thursday, then a strong cold front Thursday night will quickly drop temperatures to well below freezing. Snow will persist from Thursday night through Saturday, with moderate accumulations possible. Warmer and drier weather will finally return early next week.
Ice accumulations up to one tenth of an inch are expected.
Light snow accumulations are possible across northwest South Dakota and the Black Hills.