World Rugby says it aims to make a decision on whether Scotland's storm-threatened clash with Japan on Sunday can go ahead as early as possible.
Typhoon Hagibis is due to strike the eastern coast of Japan on Saturday, with the 1400km-wide super cyclone predicted to cause widespread damage.
Reports have suggested an inspection of Yokohama's International Stadium – where the climax to Pool A is due to be played – will to take place at 6am Japan time on the morning of the game (10pm Saturday BST), with a decision due two hours later.
Hagibis is set to become Japan's biggest storm in 51 years and is expected to have a major impact on the country's transport and rail networks.
It could play a part in whether the game is allowed to go ahead, with a closed door match still a possibility.
World Rugby must make a final decision on whether the game goes ahead no later than six hours before the 7.45pm (11.45am BST) kick-off time.
Scotland must beat the Brave Blossoms to qualify for the quarter-finals. If they match is called off, it will be declared a draw and Gregor Townsend's team will exit the competition.
