Police are looking for the child's mother, 31-year-old Roshell Marie Turner, who gave birth on Jan. 27 in a hotel room.
Officials from Child Protective Services believe the baby is in "grave danger and needs immediate medical attention," according to the Everett Police Department.
The missing child, who police are referring to as Baby Doe, is just 17 days old.
Police say Turner is a heavy methamphetamine user, and her child has potentially severe medical issues due to the drug use.
Child Protective Services has already removed numerous children from Turner's custody, according to police.
Turner is white, stands 5-feet-5-inches tall and weighs 190 pounds. She has brown eyes and black mid-length hair and has a rose tattoo on her upper right chest. There is no clothing description available.
She frequents the Casino Road area in Everett and usually stays within Snohomish County.
It is possible Turner is with a Hispanic male known as "Guero," according to police. The pair may be hiding in the South Everett area.
Police have looked into the possibility that the dead baby found in Snoqualmie is related, but at this point, they don't think so.