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August 25, 2013 05:49 PM

Storm Center Update - Sunday PM

It’s hot and humid in the east, yet we have clear skies.  It’s hot and dry in the far west, yet there are dark skies and dry lightning.  It’s certainly an odd setup on an otherwise basic weather day.  There is a small low pressure center over the Black Hills and it carries an associated area of spin.  Still, most of these storms will struggle to reach the ground because the air is simply too dry.  As these storms head NNE, small hail is possible.  Most of it will melt before reaching the ground, however.

We’re still in the heat of the day late this afternoon.  Highs have been only marginally cooler along the Missouri River, dropping 4-5° in some places.  Sioux Falls is actually more humid today, with rough dew points.  If you’re sensitive to heat, you might want to limit your time outdoors tonight.  Strong south winds will continue to funnel in that humid air overnight.  It will be muggy through tomorrow for Sioux Falls and the eastern string of counties. 

That streak of heat continues for most of the week with only isolated chances of rain.  On Tuesday, the North Dakota system will mainly miss KELOLAND and we’ve kept Aberdeen dry through later in the week.  However, on Tuesday, winds will be light and out of the northeast.  That should drop our highs marginally, by a couple degrees.  Clouds should grow by Wednesday ahead of an isolated chance of rain on Thursday. 

There are a few signs that the pattern could weaken by late next Sunday.  That’s somewhat wishful thinking but cooler air will try to move out of the Pacific Northwest. 

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