A storm knocked down a "significant amount of trees" on Park Hill Drive in Penn Township on Tuesday evening and toppled a tractor-trailer, according to Lancaster County-Wide Communications.

More than 3,000 PPL customers were without power around 8 p.m., mostly in the Neffsville, Manheim Borough and Morgantown areas. By 9:40 p.m., only a few hundred were still without power in much of Lancaster County, although the Morgantown area still had more than 1,000 without power.

By Wednesday morning, fewer than a dozen power outages were reported in Lancaster County.

EF-2 tornado touched down in Caernarvon, near Morgantown, Berks County, NWS says [updates]

The National Weather Service confirmed a tornado near Morgantown, Berks County, and said it would send investigators out on Wednesday to inspect the path.

The storm, which arrived shortly before 6 p.m. brought marble-sized hail to areas. A tree fell on a house on Park Hill Drive, and two trees fell onto a trailer in Rapho Township, according to Lancaster County-Wide Communications. A tractor-trailer was also blown onto its side on Old Philadelphia Pike near the border of East Lampeter and Leacock townships, but the driver was uninjured.

Emergency crews responded to reports of storm damage and downed wires in the storm's path, including in East Lampeter, Manheim, Penn and West Earl townships and Manheim Borough.

The damage came as the National Weather Service in State College issued a severe thunderstorm warning for northwestern Lancaster County, warning of ping pong ball-sized hail and 60 mph wind gusts.

"People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to trees, roofs, and siding," the weather service said. The warning expired at 6:15 p.m.

The thunderstorm warning followed at tornado watch for parts of Pennsylvania, Ohio and New Jersey that includes Lancaster County. 

The tornado watch, with lime-size hail possible, follows a hazardous weather outlook issued earlier on Tuesday. 

West Cocalico tornado touched down for two minutes with 105 mph winds: NWS [map]

The watch lasts until 10 p.m. 

Tuesday will be warm and rainy, with the possibility of severe thunderstorms.

Today’s high will be 86 with a low of 69.

According to the National Weather Service, today’s hazardous weather could include damaging winds, notching 70 mph, lime-size hail and the possibility of an isolated tornado.

Thunderstorms are likely to begin after 5 p.m.

Tomorrow's forecast looks similar, with more thunderstorms likely and temps in the mid-80s.