The National Weather Service in Indianapolis has issued an extended forecast that warns local residents of persistently high temperatures and humidity levels that are expected to last through the coming weekend. According to the forecast, temperatures will soar into the low to mid-90s, with heat indices nearing 100 degrees Fahrenheit. Officials note that this could pose a significant threat to sensitive and vulnerable populations.

In response to these extreme heat conditions, health officials have advised the public to "Take extra precautions if spending time outside during peak heating of the day." Additionally, an Air Quality Alert has been put into effect from midnight tonight through midnight EDT Thursday night. Officials at the Office of Sustainability for the City of Indianapolis have designated this as a Knozone Action Day, a period when ozone emissions might surpass federally mandated standards.

With hot and humid conditions slated to persist, the National Weather Service also highlights the possibility of thunderstorms between Sunday and Wednesday. "A few thunderstorms are possible over all or parts of the area Sunday. Lightning and strong winds are potential hazards with any storm," states the NWS hazardous weather outlook. Residents are encouraged to stay informed and prepared for the likelihood of such weather events.

The Knozone Action Day alert stresses public participation in reducing air pollution. Officials are asking residents to “Walk, bike, carpool or use public transportation," and to “Avoid using the drive-through and combine errands into one trip.” Additional tips include avoiding refueling vehicles or using gasoline-powered equipment until after 7 pm, conserving energy, and limiting exposure for those who are at heightened risk, such as individuals with respiratory diseases like asthma. For additional information regarding air quality, the public can visit the IDEM Smog page provided in the alert.