The National Weather Service said a storm is heading toward western Wyandotte County, including the Kansas Speedway area, and could arrive there around 8:50 p.m. Friday.
The ARCA race is scheduled to start at the Speedway at 7:30 p.m.
The weather service issued a special weather advisory this evening that said the storm may be in the Bonner Springs area by 8:30 p.m. Parts of Leavenworth County may see storms around 8:05 p.m.
Wind gusts up to 50 mph are expected with these storms, along with frequent dangerous lightning.
A severe thunderstorm watch is in effect for this area.
Residents may monitor the weather at www.weather.gov.