The weather has been fairly quiet for Central Iowa through the fall so far but will change on Wednesday. A strong storm system looks to move out of the Plains and into the Central US bringing stormy weather from Iowa to Texas.
The area of Enhanced Risk for severe weather has pushed further north into southeast Iowa on Wednesday. An enhanced risk area means numerous severe storms are possible. The storms will be more persistent and widespread. A few may be intense.
A vigorous upper level low pressure system will drop across the Plains into Kansas and Missouri during the day on Wednesday. After some morning drizzle, the center of low pressure will close off and intensify as it crosses Iowa Wednesday afternoon. A strong mid-level jet in the upper layers of the atmosphere will allow strong thunderstorms to develop early on in southeast Nebraska, northeast Kansas, and southwest Iowa by noon. There is also decent directional shear in the atmosphere that could lead to a few of the storms rotating. This may produce a few tornadoes by mid-afternoon. The highest threat of tornadoes is in the southeast quadrant of Iowa as the storms push east. A strong tornado or two is not out of the question.
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