National Weather Service United States Department of Commerce

Active Weather Pattern Continues for the Northwestern U.S.

A series of Pacific storm systems will bring periods of locally heavy rain, gusty winds, and mountain snow to portions of Washington and Oregon for the next couple days. In addition, much of the northwestern U.S. and Intermountain West will experience strong winds from these storm systems, particularly in Sierra Nevada, Great Basin, and the northern Rockies/High Plains. Read More >

Overview

Fast moving severe thunderstorms developed and tracked over much of eastern Iowa, northwest Illinois, and northeast Missouri on Wednesday, May 17, 2017, as an area of low pressure lifted northeast into northwest Iowa. Widespread damaging winds, large hail, frequent lightning, and a few brief tornadoes were reported.

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Surface Map/Radar Loop