There will be no action around the Mountain Course today.
It had been planned to try and run one Classic TT race and one parade this morning, with this afternoon's forecast particularly poor.
But the decision has been taken to postpone the entire schedule until tomorrow, as Clerk of the Course Phil Taubman revealed on Manx Radio TT just before 9.30am:
Clip 1
Crime on the Island continues to fall while serious incidents create 'exceptional demand'
Chief Constable Russ Foster's Annual Report published
As heatwave heads our way, how do we stay safe in the sun?
Island could reach 27 Celsius on Thursday
Castletown Commissioners celebrating 130 years of Poulsom Park
Event has been organised to commemorate anniversary
Cost of a passport set to increase this summer
Treasury says higher fees will mirror fees introduced in the UK earlier this year
