Sioux Falls, South Dakota – Air quality is deteriorating across the northern Plains as wildfire smoke from ongoing fires leads to a hazardous mix of poor visibility and unhealthy air. Residents in Sioux Falls, Fargo, and surrounding areas are urged to limit outdoor activities, especially where the Air Quality Index (AQI) has reached unhealthy levels.
According to the National Weather Service, the AQI in Sioux Falls has surged past 100, reaching unhealthy levels. The smoke is causing significant reductions in visibility, with some areas experiencing readings as low as 1.5 miles. This haze is expected to persist into the evening hours, making driving conditions hazardous and limiting outdoor activities.
In cities like Rapid City and Bismarck, the air quality has dipped into the unhealthy for sensitive groups category, indicating that people with respiratory issues, the elderly, and children may experience difficulty breathing. Officials recommend staying indoors as much as possible and using air purifiers to reduce exposure.
As the smoke continues to spread across the region, areas like Watertown and Marshall also see significant reductions in visibility, down to as low as 1.75 miles. Those with asthma or heart conditions are advised to avoid exertion outside until conditions improve.
The smoke is expected to remain a factor through the weekend, with officials cautioning that further updates and advisories may be issued as conditions change.
