Authorities in Scotland have canceled trains and closed parks as a rare summer storm brings destructive winds to northern Britain.

Ross Moran, Network Rail Scotland’s route director, said: “Storm Floris has caused significant disruption to Scotland’s railway, with wind speeds of up to 90mph, unprecedented for a summer storm. “Our teams have been working tirelessly to keep services moving where possible and to clear fallen trees and debris from the tracks.

An amber storm warning, covering much of mainland Scotland and the western islands, is now in force until 22:00.