Update: The woman found dead by volunteers conducting King County's annual homeless count was 60-year-old Kathryn Ann Blair.
Blair died of hypothermia, Alison Eisinger, director of the Seattle-King County Coalition on Homelessness, said.
"It's an extremely poignant and powerful symbol of why we need better options for people and why we can't accept hundreds and hundreds and hundreds of people sleeping outside in the winter," she said.
Original report: An annual census of King County's homeless population early Friday morning led volunteers to the body of a dead woman under an I-90 underpass.
Nicole Macri, volunteer organizer with One Night Count, says this is the first time a body has been found by volunteers conducting the count in her 9-plus years there.
And while she emphasizes that it was far too early to determine whether the death was related to homelessness, she says the group of volunteers "did express that it was emblematic of why we do the count."
In total, 2,736 men, women and children were found without shelter in King County last night, a small increase over those found without shelter last year, according to the count. Last year, volunteers found 2,594 people surviving outside without shelter.
Macri says the group of volunteers, while shaken, continued their count for the rest of the night.
Seattle police say a call at approximately 3:45 a.m. led outreach workers to an area near Rainier Avenue South and the I-90 underpass - where an adult woman's body was discovered in the grass. Authorities say the woman showed no obvious signs of trauma.