Storms trigger tornado warnings and damage across Delaware Valley and eastern Pa.

Storms trigger tornado warnings and damage across Delaware Valley and eastern Pa.WILMINGTON, Del. (WPVI) -- Another round of storms swept through the region Tuesday night, prompting a tornado warning in several areas across the Delaware Valley, including New Castle County, Delaware. And it rained so bad that you couldn't even see out your window," Horning said. Video shows Riverside Drive, in Lower Saucon Township, covered in mud and debris. The heavy rain also led to a mudslide in Lower Saucon Township, covering Riverside Drive in mud and debris.