Regional Weather Summary
Issued by NWS Des Moines, IA

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AWUS83 KDMX 202218

Weather Summary for Iowa
National Weather Service Des Moines IA
518 PM CDT Sun Aug 20 2017

An area of thunderstorms continued to fester over parts of southwest
Iowa through the afternoon hours, firing off a remnant boundary from
thunderstorm activity that moved through last night. This activity was
slowly starting to sag south of the Missouri border by early evening,
but additional redevelopment of storms is likely later this evening
and tonight over western Iowa. The storm activity will continue
overnight into Monday morning before pushing east of the state. Some
of the storms will have the potential to become severe, and possibly
produce locally heavy rainfall.

The cloud cover forecast for the solar eclipse tomorrow is tricky, as
much of it hinges on the evolution of the aforementioned thunderstorm
activity tonight. There may also be high cirrus clouds streaming in
from the southwest. Due to low confidence in the forecast it is tough
to rule out the possibility for some breaks in the cloud cover.

Another round of storms with the potential for severe weather and
heavy rainfall will impact the state Monday night. At this time it is
difficult to pinpoint where the heaviest activity will occur, but some
locations may see 1 to 2 inches of much needed rainfall. A strong
front will clear out all of the precipitation by Tuesday morning.
High pressure takes over through the end of the week with dry
conditions and slightly below normal temperatures expected.

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