Wales' final Pool D match against Uruguay, on Sunday, is under review with a fierce typhoon due to sweep across Japan over the weekend.
England's game against France has already been cancelled along with New Zealand's clash with Italy. Scotland's key game against Japan is also under review. At the moment the Wales match is still on. A final decision will be made on match day.
World Rugby says it's made the decision based on safety concerns.
On Wednesday, Wales qualified for the quarter-finals of the Rugby World Cup after beating Fiji in Oita.
Warren Gatland's team recovered from conceding two tries in the opening 10 minutes to wing Josua Tuisova and full-back Kini Murimurivalu as Fiji showcased their sevens genius in spectacular fashion.
But wing Josh Adams touched down twice before half-time, and then completed his hat-trick to secure a potential last-eight clash against France.
Dan Biggar, who went off after a nasty collision, kicked two conversions and Rhys Patchell added a conversion and penalty, but Wales were pushed to the limit before full-back Liam Williams' late try clinched a bonus-point triumph.
Fiji's defeat means they are out of the tournament, yet they exited in style despite having two players sin-binned, by testing every sinew of Wales' character and resolve.
In what was a tense and physical game, Fiji served immediate notice of their attacking flair when lock Leone Nakarawa's defence-splitting pass had Wales in trouble in the opening minutes.
Flanker Josh Navidi looked to have hauled Wales level two minutes later when he crossed Fiji's line, but the score was ruled out for a knock-on by centre Hadleigh Parkes.
It was a thrilling and pulsating contest, with Wales hoping their fitness levels would prove decisive as the game entered its closing quarter.
And when centre Jonathan Davies made a slashing break, Adams finished brilliantly to complete his hat-trick, giving Wales a 22-17 advantage.
Fiji's resistance finally broke 11 minutes from time when Wales full-back Liam Williams crossed for his team's bonus-point try.
Patchell converted, Wales led 29-17 and they could finally see a much-coveted quarter-final place.
Wales successfully closed out the final minutes to maintain their unbeaten record in the tournament.
Wales captain Alun Wyn Jones felt his side showed character in their fightback against Fiji.
"We probably started very slowly out of the blocks. We knew Fiji getting their tails up would be a hard day at the office," he told ITV.
"Full respect to Fiji we saw the best of them at times today.
"We had to show some character to turn over the deficit and we showed that."
Jones also hailed the Welsh fans in Japan, adding: "The number of red jerseys coming across here are growing and hats off to the Welsh fans."
After the final whistle, Josh Adams said, "That was one of the most physical games I've ever played - and some of the most difficult players I've had to stop.
"I'm happy to get the hattrick - and we're happy with the bonus point win. It wasn't pretty but we've come out relatively unscathed and we look forward to Uruguay."
Wales head coach Warren Gatland was pleased with the performance "to fight back and finish strong."
"It was tough. From 10-0 down we showed some real character a really tough game"
"Hopefully that will set us up for games going forward."
Although he also said that he thinks "the medics are going to working really hard over the next 24, 48 hours".
Welsh cyclist Geraint Thomas shared a picture on social media of him watching the game with his week-old son.