HARRIS COUNTY, Texas -

Authorities have issued a Silver Alert for a missing elderly woman from the Houston area.

The Harris County Sheriff's Office says Ernestine King, 82, was last seen at 7:30 p.m. Monday in the 19300 block of Gagelake Lane in west Harris County.

King, who has been diagnosed with a cognitive impairment, is believed to be driving a blue, 2007 Chevrolet Malibu with Texas license plates CY5X360.

She is described as 5 feet 5 inches tall, 140 pounds with red hair and brown eyes. She was last seen wearing a blue vest and blue shirt.

Anyone with information about Ms. King's whereabouts should call the Harris County Sheriff’s Office at 713-221-6000.