A severe thunderstorm watch is in effect for Chicago and surrounding areas until 5 p.m., bringing risks such as flash flooding, damaging winds, tornadoes, and dangerous lightning. Aviation delays are already expected at O’Hare, with some arrivals averaging abo
A severe thunderstorm watch has been issued for the Chicago area, with officials warning that dangerous weather could develop quickly and worsen travel disruption across the region.
The watch is in effect until 5 p.m. and covers portions of Illinois and Indiana, including Chicago and Cook County. The city’s Office of Emergency Management and Communications said the stormy conditions can bring flash floods, damaging winds, tornadoes, or dangerous lightning.
Aviation delays tied to the weather are already expected. The FAA said some flights arriving at O’Hare International Airport could be delayed an average of one hour and 15 minutes, while general departure delays at O’Hare are between 30 and 45 minutes.
City officials urged residents to prepare and respond early, emphasizing that thunderstorms can strike suddenly.. They said people should take shelter and stay informed.. The statement also noted that outdoor sirens are intended for those outdoors to seek shelter. underscoring that residents should not ignore warnings when they hear them.
Motorists were also warned to use caution. with officials urging drivers to avoid going through standing water on streets. viaducts and low-lying areas.. Residents were directed to report problems through 311.chicago.gov. the CHI311 app. or by dialing 3-1-1. including tree emergencies. water in basements. standing water in the street. or viaduct flooding.
The picture taking shape across the watch area is consistent: officials set a clear deadline of 5 p.m.. warn of multiple fast-moving hazards like flash floods and damaging winds. and pair those risks with specific public guidance—sirens for people outdoors and restrictions for drivers—while the FAA cites growing delays at O’Hare that line up with the same period.
For now, the combination of a time-limited watch, the range of potential storm impacts, and the already-anticipated travel disruptions means residents and travelers are being asked to watch for updates and act promptly as conditions develop.
severe thunderstorm watch Chicago Cook County O’Hare International Airport FAA flash floods damaging winds tornadoes lightning 311