Tornado watch

MOUNT HOLLY, N.J. - The National Weather Service has issued a tornado watch for parts of southeastern Pennsylvania and most of New Jersey on Tuesday.

The watch is in effect until 4 p.m., and includes Bucks, Montgomery, Chester and Delaware counties, as well as Philadelphia. In New Jersey, 18 of 21 counties are on the list, including Warren and Hunterdon.

Tornado warnings are also popping up around the area, as radar detects strong storms with rotation.

Northeastern Northampton County and central Monroe County were under a tornado warning from about 9:30-10 a.m. Northwestern Bucks County was under a tornado warning from about 8:20-8:45 a.m.

New Jersey was under a state of emergency as Tropical Storm Isaias made its way up the coast after making landfall as a hurricane in North Carolina.

The National Weather Service said a few tornadoes are likely in the watch area, which also includes parts of New York and Connecticut.

Isolated hail up to marble size is also possible, with strong wind gusts.