Peoria, Ill. – A line of thunderstorms brought rain and gusty winds to Central Illinois early Friday afternoon. Unfortunately, additional showers and thunderstorms are expected Friday night and throughout the weekend.
A Flash Flood Watch is in effect for parts of Central Illinois through 7 am Saturday.
A modified warm front will be nearly stationary south of the region. Scattered thunderstorms will redevelop between I-74 and St. Louis after 9 pm and will continue through 5 am Saturday. The risk of severe storms has decreased but storms that develop will be capable of producing heavy rain. Rainfall amounts of 1-2 inches will be possible south of a Burlington to Lincoln line with locally higher amounts possible.
Saturday & Saturday Night
With the exception of a stray early morning shower, most of Saturday should be dry. A warm front will gradually shift north into the region and may allow a few storms to develop, but with little upper level forcing and a capping inversion in place storms should struggle to develop. Should a storm develop, it may become severe with damaging winds and hail possible.
Storm chances increase Saturday night as a few clusters/lines of storms move through. The exact timing of the storms is somewhat uncertain but the best chances arrive after midnight. Some of these storms may be severe with damaging winds and heavy rainfall. Widespread rainfall amounts up to 1.0″ are expected with locally higher amounts possible.
The chance of showers and storms will continue throughout the day with periods of moderate to heavy rain possible. Additional rainfall amounts up to 1.0″ are expected with locally higher amounts possible. There will likely be some breaks in the rain throughout the day, but pinpointing exactly when those breaks will occur is nearly impossible this far out. If you have plans outdoors this weekend, don’t cancel. Just make sure you can get to some shelter when storms approach.
By the end of the weekend, much of Central Illinois would have received 1-3 inches of rain with pockets of 2-4 inches along I-74.