This story has been updated.
Service resumed with schedule adjustments on Metro-North's Harlem Line from Grand Central to Wassaic late Monday afternoon after downed trees were cleared at several locations, including an incident near the Hawthorne station in which a rail car derailed after hitting a tree.
Only one of two tracks are back in service in the vicinity of North White Plains and Pleasantville while crews make repairs.
Departing Grand Central, several trains will be canceled and combined, Metro-North said.
Southbound, there will be no service from Hawthorne and Valhalla.
Customers looking for southbound service from Hawthorne and Valhalla will need to go to Pleasantville or North White Plains for southbound train service.
Customers traveling southbound from Southeast who need to travel to Hawthorne and Valhalla will need to take train service to North White Plains for northbound service to those stations.
The 6:42 p.m. train from Southeast is canceled. Harlem Line tickets are being cross honored on the Hudson & New Haven Lines.
Customers should expect delays and some crowding and listen for station announcements.