Local residents have been warned that their road could be closed for the rest of the day after strong wind brought down trees.
Storm Ali has been wreaking havoc across Dundee, Tayside and Fife with Tay Road Bridge closed, train services from Dundee cancelled and buses disrupted.
The 57 service between Dundee and Blairgowrie is the latest victim, with services unable to stop at the villages of Auchterhouse and Newtyle.
Stagecoach East Scotland tweeted: “57 Service to and from Dundee will be unable to serve Auchterhouse and Newtyle is currently suspended until further notice due to fallen trees.
“It could be like this for the rest of the evening or until the council inform us that the road is clear.”
Buses to Blairgowrie are being diverted via Muirhead, Coupar Angus, Meigle and Alyth.