Strong jet stream winds are currently moving into the Pacific Northwest bringing rain and snow to Washington and Oregon, but also aiding in the development of quick moving storm systems that have been moving across the U.S the past several days. The first impacted us early Tuesday morning with the snow and then again this morning as light snow fell south of Rockford. The next storm to hit will come late tonight. Low pressure has been developing across the eastern Rockies and will quickly move through the Midwest by Thursday morning. As it does, a warm front will lift closer to the Stateline this evening which could induce a few light rain or even snow showers. As the low moves closer tonight it will pull in a little warmer air aloft which may keep the mixture of rain/snow before changing over to snow showers by Thursday morning. Just like Tuesday morning, the possibility remains for accumulating snow Thursday - some of which you may have to shovel!
The low pressure will then move into Ohio and actually strengthen as 130 kt jet streams winds move overhead. On the backside of the low a trough of low pressure will extend northwest through Wisconsin and Minnesota which will keep the snow chance going Thursday night and Friday. High pressure finally moves in Saturday afternoon giving a little more sunshine. The sunshine will fade away to clouds by Sunday afternoon, however, as a stronger low moves into the Plains by Sunday night.
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