Christmas celebrations have been abruptly cancelled for hundreds of residents in Victoria's west after a bushfire flared out of control this afternoon. Authorities issued an emergency warning for people living in Moyston and Pomonal as the Grampians fire reignited. The fire’s watch and act warning areas have also been expanded. Authorities are urging Victorians to stay alert, with fears that tomorrow could be even worse due to extreme heat and strong winds forecast for Boxing Day.