4PM UPDATE: According to authorities on scene, Johnston has been found alive in a wooded area near the train tracks between Route 220 and 199 and is safe.

"She was found by a couple of people [who] were walking the train tracks and by what we can figure now, she was walking on Route 220... We don't know if she had fallen over or walked down towards the train tracks [but] she [came to] a fence, where it appears she got under some coverage and kind of stayed there for the night. That's where she was spotted by the people on the train tracks," said the Chief of the Athens Borough Police Department, Carla Dieg.

Chief Dieg said Johnston is alert, but is dehydrated. She said Johnston was able to crack jokes as EMS workers put her in the ambulance, where she was taken to Robert Packer hospital to be checked out. 

ATHENS, PA (WENY) -- Athens Borough Police have issued a "Be on the Lookout" (BOLO) alert for a missing endangered woman with dementia, who walked away from her home Monday evening.

Authorities are looking for Judy Ann Johnston, a 74-year-old white woman who is described as 5'3" tall, approximately 170 pounds, with long straight gray/white hair and green eyes. She was last seen wearing a light colored peach or pink t-shirt, light colored sweatpants and sneakers. Police say she was not wearing her glasses, and did not have any identification on her.

According to Athens Borough Police, Johnston walked away from her home at approximately 7PM on May 13th, and did not return home. Authorities say they received a tip that she was seen at approximately 8:15PM - 8:30PM walking north on Route 220 towards Waverly, near the entrance of Route 199.

Police say Johnston has dementia, and may talk about how she wants to visit her brother and/or mother, both of whom have previously passed away. Police say she is in good physical shape, and can walk at a good pace. 

Anyone who may have seen Judy, or have leads about her whereabouts is asked to contact the Athens Borough Police Department at 570-888-2222 or 570-888-2120.