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Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Overview

An active period of weather continued on July 9th, with another round of strong to severe thunderstorms across northeastern Wyoming and western South Dakota. The hardest hit areas included Campbell County, WY south of Gillette, far southern Fall River County, and portions of Tripp County near Winner. At least 70 mph winds were reported in each area, while widespread downed trees and power poles were observed in Tripp County.
 
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