(10:30PM Wed, July 26th 2023) Wednesday night update regarding multiple disturbances and storm systems that will continue to move through the region through Saturday, along the northern periphery of a ridge in place across the region. This pattern will continue to support daily chances for rain/t’storms and severe t’storms across portions of the state during this period, through Saturday.
Update…
•With this update we have adjusted severe t’storm probabilities on tonight’s forecast, based on the latest trends and real time information.
•With this update we have issued our first forecast for Thursday/Thursday night.
•With this update we have issued our first forecast fro Friday/Friday night.
Timing & Location…
•Tonight – Early Thusday Morning, July 26-27th: Central Illinois.
•Early Thursday Morning – Early Friday Morning, July 27-28th: Much of Illinois.
•Early Friday Morning – Early Saturday Morning, July 28-29th: Northern & Central Illinois.
Impacts…
•A level 1 severe t’storm risk is in place across Central Illinois, from tonight through early Thursday morning. Isolated severe t’storms will be possible, posing a risk of damaging winds and large hail.
•A level 1 severe t’storm risk is in place across much of Illinois, from early Thursday morning through early Friday morning. Isolated severe t’storms will be possible, posing a risk of damaging winds and large hail.
•A level 1 to 2 severe t’storm risk is in place across Northern and Central Illinois, from early Friday morning through early Saturday morning. Isolated to widely scattered severe t’storms will be likely, posing a risk of damaging winds, large hail and an isolated tornado.
