Practice for the Chicago Air and Water Show began on Friday, August 14, 2026, as meteorologists warned of damaging winds, hail and heavy rain moving across the Chicago area and northwest Indiana. The forecast called for a two‑day risk of severe weather, prompting utility crews to respond to widespread outages that have already left more than 300,000 customers without electricity.

The iconic air and water exhibition is entering its rehearsal phase while the region contends with storms that have produced tornadoes and power failures. Utility officials reported that the recent severe weather events triggered the extensive outages, and crews remain on the ground working to restore service as the show’s participants continue their preparations.

Organizers of the Chicago Air and Water Show noted that rehearsals are proceeding according to schedule despite the weather alert. The practice sessions involve aircraft and watercraft performing coordinated maneuvers over Lake Michigan, a core component of the annual event that draws large crowds each summer.

Local authorities are monitoring the situation closely, emphasizing that safety protocols will be followed should the forecasted conditions materialize. The combination of high winds, hail and heavy rain could affect both the rehearsal activities and the upcoming public performances, though no changes to the show’s planned dates have been announced.

Residents in the affected area are advised to stay informed of weather updates as the two‑day severe weather risk persists. The ongoing power outages and the potential for additional storms underscore the challenges faced by the city as it prepares for one of its most popular summer attractions.