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Here's how potholes form: The science behind those bothersome bumps

The potholes first begin to form in the winter and hit their stride in the spring. Meteorologist Grant Gilmore breaks down the scientific explanation behind the roadblocks.

Mar 12, 2024 (02:04)

Tuesday will be the coolest day this week, with 70s returning Wednesday

Tuesday will be the coolest day this week, with 70s returning Wednesday

Investigators dismantle laboratory found in the basement of 'house of horrors' in Olney

Investigators dismantle laboratory found in the basement of 'house of horrors' in Olney

Lockdowns lifted on 4 Philadelphia schools following apparents threats

Lockdowns lifted on 4 Philadelphia schools following apparents threats

Apparent threats against 2 Philadelphia schools prompt lockdowns

Apparent threats against 2 Philadelphia schools prompt lockdowns

About 4 pallets of ground beef stolen in Northeast Philadelphia, police say

About 4 pallets of ground beef stolen in Northeast Philadelphia, police say

Woman injured after hose fire in Kensington

Woman injured after hose fire in Kensington

Classic crisp October day Tuesday in Philadelphia region | NEXT Weather

Classic crisp October day Tuesday in Philadelphia region | NEXT Weather

Pa. gas prices take slight dip but remain well over $4 a gallon : "I'm angry"

Pa. gas prices take slight dip but remain well over $4 a gallon : "I'm angry"

21 people injured after hayride wagon overturns in Upstate New York

21 people injured after hayride wagon overturns in Upstate New York

Hearing about future of Academy of Natural Sciences postponed. Here's why.

Hearing about future of Academy of Natural Sciences postponed. Here's why.

FBI, Philadelphia Police to search basement of "house of horrors" in Olney

FBI, Philadelphia Police to search basement of "house of horrors" in Olney

Cape May's Congress Hall begins search for 2026 Christmas tree

Cape May's Congress Hall begins search for 2026 Christmas tree

Brandywine Valley SPCA helps rescue dogs from Texas ranch

Brandywine Valley SPCA helps rescue dogs from Texas ranch

Jaylen Brown lived up to hype in Sixers’ preseason opener: “He got that dog in him”

Jaylen Brown lived up to hype in Sixers’ preseason opener: “He got that dog in him”

Law enforcement searches Olney house of horrors for evidence of missing women feared dead

Law enforcement searches Olney house of horrors for evidence of missing women feared dead

Coldest morning temps of the season in store for Philadelphia Tuesday

Coldest morning temps of the season in store for Philadelphia Tuesday

Clear but much colder Monday night in Philadelphia region

Clear but much colder Monday night in Philadelphia region

Pennsylvania measles outbreak hits more than 1,000 cases

Pennsylvania measles outbreak hits more than 1,000 cases

Halloween candy is more expensive this year. Here's why.

Halloween candy is more expensive this year. Here's why.

New research says women aren't doing enough to reduce risk of breast cancer

New research says women aren't doing enough to reduce risk of breast cancer

Man convicted in 2024 fatal beating in North Philadelphia

Man convicted in 2024 fatal beating in North Philadelphia

Pa. skill game crackdown could hurt local charities, Delco bar warns

Pa. skill game crackdown could hurt local charities, Delco bar warns

Cancer becomes leading cause of death in Hispanic, Latino communities in US

Cancer becomes leading cause of death in Hispanic, Latino communities in US

2 men pistol-whip Philadelphia store owner in $7K robbery, police say

2 men pistol-whip Philadelphia store owner in $7K robbery, police say

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