From the TdH website:

Update - It's too early to make any decisions about Le Tour - in two weeks time it might all be green!

When we planned the event, making the route 'weatherproof' was one of the key factors, including access to Askham. I'd be very surprised if we need to cancel; if we need to making a change it will be to shorten the route, with a turn around at Greenside most likely. Out and back routes do have their advantages!

Keep in touch with the website for any updates - see you at Askham.

Joe - Saturday 4th December