(11:45AM - 4/28/20) A storm system moving through the region today will bring the chance for severe t'storms to the state.
The previous forecast continues to look on track, with no real changes needed with this update.
Synopsis...
An area of showers and t'storms has been ongoing this morning across portions of Iowa and Minnesota, ahead of an advancing cold front, associated with a storm system moving through the region. Ahead of this cold front and associated activity, some heating and destabilization is and will continue to occur across the state. However, expansive cloud cover and debris showers will likely move across Northern Illinois this afternoon, which puts into questions the amount of heating and destabilization that will occur cross this area. In any case, new and re-newed development of showers and t'storms will likely occur during the afternoon, from Eastern Iowa/Northwest Illinois on down into Missouri, near the morning activity that will have pushed eastward from Iowa and Minnesota. This activity will then spread eastward across much of the state, from this afternoon into tonight. An environment in place featuring low to moderate instability, mediocre to decent moisture, good forcing and good shear will be in place. This will help support a minimal to limited severe t'storm threat across much of the state. It should be noted that the risk across Northern Illinois will be more conditional, and dependent on how aforementioned issues work out. All modes of severe weather will be possible with any severe t'storms. Below is the severe t'storm forecast for this event.
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