That's when she lost control of the car and slammed into the Ultra gas station.
"Sounded like a bomb, boom! And the flames are what really scared the heck out of me," eyewitness Eleanore DeRosa said.
Flames shot out of the car after its driver rammed right into a gas pump. The result was an explosion. But authorities say that's not all she hit.
First, she side-swiped a parked car on Route 109 and then struck a utility pole nearby.
By the time she careened into the gas station, her car had already burst into flames.
"We weren't able to get to her. The fire was too intense. Rescue personnel at the time tried," said Det. Sgt. Marco Giudice, of the Suffolk County Police Department.
Investigators are trying to figure out why she was speeding and whether alcohol was a factor.
Those who run the gas station are still in shock.
"It's very bad. We feel so sad," gas station manager Yasin Yesinbas said.
The gas station is closed for the next couple of days as police investigate the deadly crash.