Another tornado confirmed
For second time in less than two weeks, local weather service confirms tornado.
The winds that lifted off the roof of an elementary school building in Berks County on Thursday belonged to a tornado, the National Weather Service confirmed Friday.
The twister – an EF1 on the Enhanced Fujita scale -- packed winds of 105 m.p.h., traveled about three-quarters of a mile and left a damage path 75 yards near Tilden Township. One person was injured.
The weather service said the tornado touched down near stone road, tracked northeastward to the Blue Mountain Elementary School, then into a campground.
This marked the second time in two weeks that the Mount Holly weather service office investigators had confirmed an EF-1 tornado.
On June 30 a twister with winds of 95 m.p.h. touched down in Honey Brook, Chester County.
The Enhanced Fujita scale is a tweaked version of the former Fujita scale, named for the late Theodore Fujita, the researcher who developed a system in 1971 for estimating winds by analyzing storm damages.
The National Weather Service began using the EF scale in 2007.