A service change is in effect this evening for passengers of Metro-North Railroad's New Haven Line at the Green's Farms Station in Westport and East Norwalk Station.

Railroad officials say that because they are concerned that today's heat could have an impact on the overhead catenary system, that passengers at the two station will board trains using bridge plates extending over the tracks from the usual platforms.

They also warn there could be scattered delays throughout the evening.

There will be announcements made at depots along the New Haven Line about any additional changes in service or delays, according to Metro-North,