Photo: Tuesday's super cell that produced dangerous rotating winds near Route 59 and Theodore near Joliet. | Natalia Perez

Illinois storm chasers Danny Neal and Adam Lucio caught, in their words, "wicked, awesome" funnel clouds forming over the Joliet area Tuesday evening. Neal and Lucio have been chasing and documenting funnel clouds and twisters across the Midwest since 2008. The guys started out around noon Tuesday and drove to Galesburg where they documented storms that formed in Knox County mid-afternoon.

Illinois storm chasers Danny Neal and Adam Lucio caught, in their words, "wicked, awesome" funnel clouds forming over Channahon and the Joliet area Tuesday evening. Storm near Joliet and Crest Hill, and Channahon, Tuesday, Aug. 18, 2015. Video by Illinois Storm Chasers

Storm chase video near Channahon by Illinois Storm Chasers Neal and Lucio have been chasing and documenting funnel clouds and twisters across the Midwest since 2008. The guys started out around noon Tuesday and drove to Galesburg where they documented storms that formed in Knox County midafternoon.

"We followed those for awhile and made it back to I-55 around 6 p.m.," Neal said. "We followed the storm from Odell to Channahon, where the storm really got its act together."

Accompanying the storm chasers on their adventure was a National Weather Service employee. The trio chased a particularly dangerous supercell that developed near Morris and tracked northeast through Channahon, Joliet, Romeoville and on up into Downers Grove.

While chasing the storm, they were phoning in live reports of funnel clouds and rotating air masses to the National Weather Service in Romeoville. Based on their reports, the Romeoville weather service office issued a tornado warning for the Joliet area around 8:05 p.m.