The A61 Harrogate Road at Harewood in West Yorkshire is partially blocked due to a collision.
It happened near A659 The Avenue (Harewood Bridge). There is congestion to Otley Road outside the Harewood Arms.
The organisers of MFEST have announced the event which was due to start today has been cancelled due to bad weather.
They say they regret the decision but are having to abandon the event at Harewood House near Leeds because of adverse weather conditions and extreme weather warnings issued by the Met Office. 30,000 people were expected to attend, but the organisers say the decision has been made or safety reasons.
On her second day in the region Princess Anne will visit Harewood House to view their latest exhibition. It features intimate portraits of the Queen throughout her life to celebrate the Diamond Jubilee. The Princess Royal will also visit Keighley Civic Centre, a brewery and an ice-cream parlour.