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Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Overview

A vigorous upper level low emerged from the western United States January 1, 2023. As it moved into the central plains, it wrapped up over Nebraska injecting significant amounts of moisture into northeastern Wyoming and western South Dakota. Snow started the evening of January 1 and persisted until the morning of January 3. The heaviest snow fell from Martin to Rosebud to Winner, South Dakota, although there was a heavier pocket south of Hot Springs, SD and south of Gillette, WY. Little to no snow fell north of Interstate 90 over northwestern South Dakota. The one nice thing about this winter storm was that winds were relatively tame. The snow fell straight down at our office in Rapid City, SD.

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