OAK GLEN, Calif. -- A woman made a daring, and ultimately unsuccessful, attempt to save her truck from an oncoming wall of water and mud as flash flooding fueled by the remnants of Tropical Storm Mario slammed Southern California Thursday.

Video shot near the Oak Glen Steakhouse & Saloon shows a woman racing to climb into her truck as the muddy river raged just feet away from the parking lot, while shocked onlookers cried warnings of "Watch Out!"

The woman jumped into the truck and slammed it into reverse, but moments later, a surge of water and mud overtook the truck and the edge of the parking lot, pulling the truck deeper into the muck.

REMNANTS OF MARIO TRIGGER MUDSLIDES AS RAIN SURGES ACROSS SOUTHERN CALIFORNIA

The truck became stuck, but luckily remained in relatively shallow mud

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