Chicago area under severe thunderstorm watch on Tuesday
Severe thunderstorms moved into the Chicago area on Tuesday morning.
Some areas were seeing strong to severe storms as of around 9:30 a.m. The main threats will be large hail and damaging wind gusts, especially late afternoon into the evening as the front passes through.
Delays are expected at both O'Hare and Midway airports amid severe weather.
A severe thunderstorm watch is in effect through 5 p.m. for La Salle, Kankakee, Kane, Grundy, Will, Cook, DuPage and Kendall counties in Illinois. The Indiana counties under the watch include Lake, Porter, Jasper, La Porte and Newton.
A flood advisory is in effect until 1:30 p.m. for Cook and Will counties in Illinois and Lake County in Indiana.
Golfball-sized hail was spotted in Joliet earlier Tuesday morning.
Conditions will be warm and humid with highs in the upper 70s and 80s before a cold front moves into the area.
Showers and storms will gradually move south Tuesday night as a front clears the region, bringing a noticeable cooldown into the 30s and 40s by Wednesday morning.