KANSAS CITY, Mo. — The immediate Kansas City area is included in a severe thunderstorm watch through 10 p.m. Friday night. The National Weather Service says hail up to the size of ping pong balls, winds up to 70 miles per hour and frequent lightning are possible with the storms that develop.

After an afternoon filled with tornado sirens, lightning strikes, torrential rain and visible cloud rotation near Iowa Speedway, IndyCar canceled Friday afternoon practice.

A confirmed tornado is moving through Davenport, Iowa, prompting urgent warnings for people in the area to take shelter. The tornado was reportedly spotted just northwest of Davenport and is now heading toward Le Claire and Princeton.

Spectators of the INDYCAR race at Iowa Speedway were forced to take shelter during a tornado warning on Friday. A message over the speedway's speakers advises people take shelter.

(KMAland) -- A tornado watch has been issued for portions of western Iowa and eastern Nebraska until 10 p.m. Thursday. In KMAland, that watch includes....

Severe weather disrupted events at the Iowa Speedway in Newton on Friday as tornado sirens sounded and fans were told to take shelter. The alert came during the INDYCAR race. The spectators were forced to evacuate the area quickly.