World Rugby is monitoring a typhoon that could hit Japan on Saturday and stop Ireland's World Cup campaign in its tracks.
Typhoon Hagibis has formed in the Western Pacific Ocean off the south coast of Japan, with forecasts suggesting it could hit the island of Kyushu this weekend.
Ireland face Samoa in the Kyushu city of Fukuoka on Saturday, where Joe Schmidt's men need a bonus-point victory to seal a place in the quarter-finals.
Regulations dictate that any games cancelled at the World Cup due to weather problems are registered as scoreless draws.
That scenario would allow Scotland the chance to leapfrog Ireland into second place, should Gregor Townsend's men see off both Russia on Wednesday and hosts Japan on Sunday.
However, Ireland defence coach Andy Farrell said he expected the game would be rescheduled or moved rather than cancelled.
"The boys haven't even spoken about it, really," said Schmidt's assistant, who will take over as head coach after the World Cup.
"We just go from day to day and get on with our preparations.
"World Rugby has been in touch with us and are as keen as we are to play the game.
"I believe there is a contingency plan in place but we just get on with our day job.
"The weather forecast changes the whole time anyway so we probably won't know until 48 hours or so before."
Previous predictions of typhoons hitting Japan and disrupting the tournament have so far proved wide of the mark.
Typhoon Mitag had threatened France's clash with the USA in Fukuoka last week, but the match was completed without issue.
A statement on the Rugby World Cup website read: "The latest modelling from our weather information experts and the Japan Meteorological Agency, indicates that the typhoon is tracking in a north-westerly direction and could bring high winds and heavy rain to southern Japan on 12 and 13 October.
"While it is too early to determine the exact trajectory and impact, if any, of the typhoon at this early stage, as per previous typhoon warnings, we have a robust contingency programme in place in the event adverse weather looks likely to impact fixtures.
"We will continue to closely monitor this developing situation in partnership with our weather information experts, local authorities, transport providers and the teams, and will provide a further update tomorrow."
Follow Ireland v Samoa on Saturday 12 October (kick-off 11.45am) via the live blog on RTÉ.ie/Sport and the News Now App, watch live on RTÉ2 or listen to live match commentary on 2fm.