MECHANICSVILLE, Md. (WJZ) — A person is dead after a tree fell onto a moving vehicle in St. Mary’s County Tuesday morning as Tropical Storm Isaias blew through Maryland.

The accident happened along Three Notch Road near Charlotte Hall School Road in Mechanicsville around 9:33 a.m. The St. Mary’s County Sheriff’s Office said the driver was heading south when a tree on the shoulder collapsed, trapping the driver inside.

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The sheriff’s office identified the woman killed as 31-year-old Tiaesa Sade Lake of Suitland. Lake was driving a 2003 Mercury Grand Marquis when she was killed.

Lake was driving southbound on Three Notch Road when a large tree fell onto her car. She was pronounced dead on scene.

At this time, alcohol, drug impairment and speed do not appear to be factors in the collision.

Anyone who witnessed the collision that has not yet provided a statement is asked to contact Corporal Vincent Pontorno at (301) 475-4200 extension 72337 or by email at

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Citizens may remain anonymous and contact Crime Solvers at (301) 475-3333, or text a tip to “TIP239” plus their message to “CRIMES” (274637). Through the Crime Solvers Program tipsters are eligible for an award of up to $1,000 for information about a crime in St. Mary’s County that leads to an arrest or indictment.

For official news and information, follow the St. Mary’s County Sheriff’s Office on Twitter @firstsheriff.

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