Metro-North Railroad has suspended all trains on all lines for safety reasons due to mounting water.  Transit officials say this was a historic and challenging night for the region. Torrential rains caused massive amounts of water to flood roads, creating severe disruptions to service.  Some trains were stuck after up to six inches of rain fell within hours.  Metro North travel has been suspended until further notice on the Danbury Branch, the New Haven Line and the Harlem line out of Southeast.