The mountain road has been closed this morning (25 January).
Several factors are involved - there's been an accident involving three vehicles at the Verandah and weather conditions are deteriorating, with snow blowing back onto the road.
The road re opened late on Thursday afternoon after a major operation by infrastructure gritting teams to clear snow and ice, after remainign closed for almost a week.
Police took the decision to close the mountain route for safety reasons just after 7am.
Conditions will be reviewed at 5pm Friday.
Steam Packet wanted to be 'certain' before issuing statement, says MD
Onchan Commissioner denies assaulting member of public
Tourists praise 'unique' horse tramway
Manxman won't return to service until end of September