Bus Vannin says delays to racing may disrupt bus services today.
On its Facebook page, the organisation says some of its services may be subject to disruption or cancellation at short notice.
Roads were due to close at 9.30am today, but poor weather means they won't shut until at least 11.30am.
It's apologising for any inconvenience to passengers.
0.25% of Douglas buildings dilapidated, says council
MHK to query Liverpool ferry terminal running costs
Emergency repairs to close Port St Mary road
Commissioners host 20mph drop-in
Tractor run heads north
House plan to restore Foxdale Deads
Douglas to sign Friendship Agreement with Dublin