(KRON) -- The California Highway Patrol activated a Feather Alert Sunday after a 22-year-old woman was reported missing in Sonoma County. Ariana Arnold was last seen Sunday around 12:30 p.m. in Petaluma, near North McDowell Boulevard and Lynch Creek Way, CHP said. Missing person Ariana Arnold (Pho to: California Highway Patrol) She is described as 5 feet 3 inches tall and weighing 114 pounds. She has black hair and brown eyes. Arnold was last seen wearing a black long-sleeved shirt and red sweatpants. Arnold is affiliated with the Scotts Valley Band of Pomo Indians, according to authorities. Anyone who sees the missing woman is asked to call 911. ...read more read less