The search resumes Wednesday morning for 50-year-old Deborah Jean Williams, who has been missing since April 27.
The Bexar County Sheriff's Office and the Heidi Search Center have been looking along Donop Road in Southeast Bexar County, near the last place where Williams was seen.
BCSO Sgt. Ken Murray said she often stayed with her boyfriend living in a mobile home park.
Murray said, "At this point, we do not suspect foul play."
"She had an argument with her boyfriend. Her boyfriend called her parents. When they showed up, she had an argument with her parents, and then she walked off into the treeline."
Murray said as an adult, Williams was free to do that.
However, he said that night there was a line of heavy storms, and there's been no activity on her cell phone or credit card in the past three weeks.
The Heidi Search Center asks that volunteers willing to help in the search gather at 10 a.m. Wednesday at Harmony Baptist Church, 12088 Old Corpus Christi Road.