At 551 PM EDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located along a line extending from near Lionville-Marchwood to Concordville, moving east at 40 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely.
Locations impacted include... West Chester, Chester, Westtown, Downingtown, Cheyney, Lima, Chelsea, Lionville-Marchwood, Gradyville, Paoli, Chester Springs, Chester Township, Lionville, Concordville, and Nether Providence Township.