Severe storms with lightning, heavy rain, high winds and hail ripped through the region Monday afternoon causing widespread outages and damage. A Severe Thunderstorm Watch was in effect for almost the entire region until 8 p.m.
The FAA also issued a ground stop for flights departing to Philadelphia due to the weather. The ground stop was later canceled however.
The storm also slammed the Lehigh Valley, leaving 16,717 PPL customers in the area without power at its peak. The weather also caused a roof to partially collapse into the first floor of a home on the 1900 block of Ronald Drive in Whitehall Township.
"You could see the front door start shaking so bad," said Samira Salim, who was inside the house during the partial collapse. "I ran downstairs and my mom is yelling because the roof is flying. A lot of stuff. Debris is flying all over."
Officials have not yet revealed if anyone was injured. Storms also caused widespread damage to homes and businesses in Havertown, Delaware County, including the Swiss Farms at 820 N. Eagle Road.
"Next thing you know we had another big lightning bolt," said Dawn Gallo, the manager of Swiss Farms. "We heard this big thud."
Scott Simon, the store's president and CEO, told NBC10 the store's 40-year-old silo collapsed in roughly 20 seconds.
"Thank God no car was inside and no one got hurt," Simon said. "That's the most important thing. Everything else can be repaired."
Simon told NBC10 the storm caused $100,000 in damage. They plan to rebuild the silo.
Conditions will clear overnight and we're in for a partly sunny and less humid Tuesday with a high of 89.
This story is developing. Check back for the latest weather updates.