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Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Overview

An Arctic cold front moved rapidly southeast across the lower Ohio Valley on the evening of the 11th. Rain changed to a brief period of freezing rain, then to sleet during the overnight hours. The sleet changed to snow on the 12th as the Arctic air flooded in. A vigorous disturbance in the upper levels of the atmosphere prolonged the snow through much of the day on the 12th. Snow amounts were greatest over western Kentucky, with amounts of 3 to 5 inches common. A few areas observed as much as 7 inches of combined snow and sleet accumulations.

 

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