England and Scotland's final World Cup pool matches this weekend are under threat from violent Typhoon Hagibis.
Hagibis is moving towards Japan and expected to make landfall on Saturday.
Both England's game against France in Yokohama on Saturday (09:15) and Scotland's vital match with hosts Japan at the same venue on Sunday (11:45) could be affected.
World Rugby has called a news conference on Thursday at 04:00 to discuss what action will be taken.
If the Scotland-Japan match was to be cancelled, under tournament rules Gregor Townsend's side are likely to be knocked out of the World Cup.
Argentina 47-17 USA.
Argentina outclassed USA, scoring seven tries in 47-17 win but they couldn't make the knockout stages for a fourth consecutive Rugby World Cup.
Scotland 61-0 Russia.
Scotland sealed their second win at RWC 2019 to set up a quarter-final shoot-out with Japan on Sunday.
Wales 29-17 Fiji.