(11:00AM – Friday, May 16th, 2025) As a storm system moves through the region, it will aid in bringing a period of high synoptic winds across portions of the state, midday Friday through Friday night.
Timing…
•Friday Midday – Friday Night, May 16th.
Location…
•Northern & Central Illinois.
Impacts…
•Peak high wind gusts of 35-50MPH will be likely across Northern and Central Illinois during this timeframe, with locally higher wind gusts possible.
•Winds will be southwesterly on Friday, shifting westerly Friday night.
•The high winds will have the potential to blow around light-weight/loose items, and may cause isolated tree damage and power outages.
Discussion…
•As storm system moves through the region, it will aid in bringing a period of high synoptic winds across portions of the state, from midday Friday through Friday night. The combination of a jet streak aloft overhead, a unidirectional flow, steep lapse rates, and ample atmospheric mixing in place, will all aid in the likelihood of high synoptic winds across portions of the state during this period. Winds on Friday will be southerly, eventually transitioning westerly Friday night.
