San Francisco Bay Area media blogger Rich Lieberman reports Karnow was a victim of budget cuts at the station. His bio is no longer up on the station website.
Karnow started at KPIX in July 1997. Before coming to KPIX he was the morning weather anchor at KSBW in Salinas-Monterey, Calif.
>UPDATE: KPIX confirmed Karnow no longer works at the station.