(11:45AM - 4/27/20) A storm system moving through the region on Tuesday will bring the chance for severe t'storms to the state.
The previous forecast looks on track, with no real changes needed with this update.
An area of showers and t'storms will be ongoing Tuesday morning across portions of Iowa and Minnesota, along 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 will occur across the state. However, this early activity across Iowa and Minnesota may limit heat and destabilization across Northern Illinois, with cloud and shower debris possible to move through the area. In any case, new development of showers and t'storms will likely occur in the vicinity of the cold front, from Eastern Iowa/Northwest Illinois on down into Missouri, during the afternoon. This activity will then spread eastward across much of the state, from Tuesday afternoon into Tuesday night. An environment in place featuring low to moderate instability, 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. All modes of severe weather will be possible with any severe t'storms. It is possible an upgrade in severe probabilities may be needed in future updates, should some potential issues look to be resolved.
Below is the severe t'storm forecast for this event.
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