A severe thunderstorm watch is in effect for 37 Pennsylvania counties, including all four in the Valley, until 8 p.m.
The National Weather Service in State College reports the watch extends from Pennsylvania all the way to Maine.
Heavy rain, wind gusts up to 70 mph, frequent lightning and ping-pong ball size hail are all possible, NWS reports.
This is a developing story. More details will be published when they become available.