Metro discovered a cracked rail on the Green Line near the West Hyattsville station, which is going to result in single tracking around the exposed area until they can repair it. Metro will also be inspecting all 3,000 signaling relays as part of their crash response, which may contribute to system slowness. Until all the relays have been checked, the system will continue to operate in the slower Manual mode.
Update [2:37pm]Metro has announced a second rail crack this time on the Red Line at Medical Center. The Red Line will now be single-tracking between Grosvenor/Strathmore and Friendship Heights.