Regional Weather Summary
Issued by NWS Des Moines, IA

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AWUS83 KDMX 211007

Weather Summary for Iowa
National Weather Service Des Moines IA
507 AM CDT Mon Aug 21 2017

Scattered thunderstorms moved across all but the far south overnight.
Western Iowa saw very heavy rainfall. Crawford County had in excess of
6 inches and Guthrie County had in excess of 4 inches. The Des Moines
area had a little more than an inch of rain. Temperatures overnight
were generally in the upper 60`s to 70 degrees and the wind was
southeast at 5 to 15 mph. In addition to the heavy rainfall there were
a few severe storms that produced quarter sized hail in Northwest Iowa and
wind gusts to 60 mph in west central Iowa.

A cold front will push across the Upper Midwest today through early
Tuesday. This front will provide the focus for additional
thunderstorms this afternoon and tonight. In addition to the frontal
boundary, an upper level system will shift across the region. The
result of all of this will be for storms this afternoon to have the
potential to become severe and alos produce heavy rainfall. Damaging
wind and large hail...along with a few tornadoes are all possible..
The northwest two thirds of the state could see very large hail late
this afternoon and evening.

The front will pass to the east Tuesday morning leaving the region in
comfortable temperatures and humidity and mostly dry conditions until
the weekend, when the next system could impact the Upper Midwest.
Highs from Tuesday into the weekend will range from the mid 70`s north
to the lower 80`s south.


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