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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

Thunderstorms originating in Montana moved into the western Dakotas while organizing into a squall line and producing winds up to 70 mph.  Over time, this squall line began to bow out and generated a concentrated corridor of 80 to 100+ mph straight-line wind gusts over portions of west central to central South Dakota.

Credit: KCCR Pierre

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