Chicago weather remains unsettled heading into the weekend, with a severe storm threat Friday evening that brings the possibility of tornadoes and flooding.

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.

A tornado watch has been issued for part of southeast Wisconsin until 11 p.m. The watch includes Jefferson, Kenosha, Milwaukee, Racine, Walworth and Waukesha counties. Stay with WeatherWatch 12 throughout the evening for any updates.

A flood watch for flash flooding has been issued for roughly a third of the state, including Polk County. Overnight storms moving through central Iowa packed a punch, with heavy rains and damaging winds.

A tornado watch has been issued for parts of central and eastern Nebraska, including the Omaha area, until 10 p.m. Thursday.

After a long night yesterday of severe weather, we are keeping a watch on some more potentially severe storms for this evening. Most of our area is under a Tornado Watch until 8PM tonight with an

TONIGHT: FIRST WARN - Scattered storms up to 9 pm, with a chance for strong straight-line winds. Turning drier after sunset with storms moving south and east. Temperatures are largely in the 80s with south winds at 5-15 mph.

An updated tornado warning was issued by the National Weather Service on Tuesday at 5:52 p.m. in effect until 6:30 p.m. for Bucks, Montgomery and Philadelphia counties.

People in the warning area are urged to seek immediate shelter inside a sturdy building and to stay away from windows in case a tornado touches down.

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.