Acton Flash Flood Shuts Down Metrolink Train Posted on August 4, 2017 by Los Angeles 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: Hundreds were stranded for hours when a flash flood in Acton caused a Metrolink train to stop on the tracks. Beverly White reports for the NBC4 News at 8 p.m. on Thursday, August 3, 2017. Published 19 minutes ago 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: