"This could rapidly unfold," that's what a private investigator working on the Cherrie Mahan case told Channel as local police and members of the FBI started digging in Armstrong County this week. What we know >>> wpxi.tv/43sas9V | WPXI-TV Pittsburgh

Forty years ago, western Pennsylvania experienced its worst tornado outbreak, with some of the biggest and deadliest tornadoes the area has ever seen. Severe Weather Team 11 Meteorologist Scott Harbaugh shares the stories of the people who lived through those historic storms. Tonight at 5:30 p.m. on Channel 11 News. | WPXI-TV Pittsburgh

12K views · 191 reactions | IT'S A BEAUTIFUL DAY: It's "1-4-3 Day" in Pennsylvania in honor of Mister Rogers. Channel 11's news anchors are sharing their memories of Mister Rogers. SHARE your memories with us. https://on.wpxi.com/2YHoIrI | WPXI-TV Pittsburgh | Facebook