TT organisers say there's a one-hour delay to today's racing programme.
The Mountain Road had been due to shut at 9am this morning for more racing.
The rest of the course was due to close at 10am in order to get a superstock race away followed by the second sidecar race.
There's also due to be a practice lap for seniors with the second supertwin race afterwards.
Unplanned TT pregnancies spark "ride safe" message
Beavers need you! 1st Rushen Scouts looking for new leaders
Firefighters tackle fire in a shipping container
Chief Minister says government efficiency drive has saved £4 million so far
Digital flag network to be tested around TT course
Infrastructure Minister cannot say when delayed landlord law will begin
Isle of Pride event cancelled after commissioners request date change
Police ask 'How Will Your TT End? You Choose...'