Police say the woman was out for an early morning jog along California Avenue SW when a strange man stepped out of the shadows, pulled her to the ground and fondled her.
The woman screamed and the attacker ran away. He may have taken her sense of security, but it appears she's now trying to take it back.
Instead of cowering in fear, the woman took to the streets with some pink and yellow chalk.
She left as message on the asphalt that reads, Women of West Seattle ... physical/sexual assault took place here. The man ran away and was not located by police. I was out for my AM run in our neighborhood. Be aware. Warn your friends."
Neighbors in the area are glad she did it.
"I think that's amazing. I think I would've done something similar," said Sno Rounds.
Others say the message is a good reminder that safety should not be taken for granted.
"I mean, that's awful," said Laurie Sarver. "I'm going to run with friends. I'm not going to run with earphones on."
That's exactly what police advise. They say everyone should be aware of their surroundings and they have no problem with the way the victim chose to warn others.
"For her, that was getting the word out," said Renee Witt with the Seattle Police Department. "So why not? Why not?"
Police do not have a detailed description of Wednesday's attacker. They say he stands about 5'9' tall and was wearing a dark hoodie and dark pants.
Detectives are also trying to find a pedestrian who may have seen the attack. Anyone with information about the incident is asked to call the police.