Strong thunderstorms are forecast to develop across the Susquehanna Valley this afternoon as a slow-moving cold front moves into the northwestern corner of Pennsylvania.
According to the National Weather Service, potentially severe thunderstorms will move out of Ohio. These storms will be moving east at around 25 mph and will affect the Laurel Highlands, including Somerset and Johnstown this morning, before sliding east into the Interstate 99 corridor, including State College, Altoona and Bedford between 11 a.m. and 12:15 p.m.
The NWS has issued a flash flood warning for parts of Columbia, Northumberland and Schuylkill counties until 3:30 p.m.
According to NWS, Doppler radar indicated thunderstorms producing heavy rain across the area, where there has already been more than an inch of rain, additional rainfall amounts up to an inch are possible.
NWS Tweet
Some locations that will experience flash flooding include Mount Carmel, Kulpmont, Ashland, Lavelle, Aristes, Fountain Springs, Wilburton Number One, Locustdale, Beurys Lake, Wilburton Number Two, Gordon, Marion Heights, Centralia, Pitman and the Schuylkill County Airport, according to the warning.
The storms will likely intensify as they approach and impact the Middle Susquehanna Valley and Interstate 81 corridor between 1 and 3 p.m., NWS reports
Wind gusts up to 55 MPH are possible with these storms, along with nickel-size hail in some locations.
This is a developing story. More details will be published when they become available.