Scotland will discover on Thursday whether they will be controversially blown out of the World Cup by Typhoon Hagibis.
The Scots' crucial final Pool A clash in Yokohama on Sunday has been cast into serious doubt by predictions of an "explosive" super storm arcing towards the Tokyo region.
World Rugby have called a press conference for 4am BST where they are expected to set out their contingency plans for both the Scotland-Japan match up and Saturday's showdown between England and France, which is also being staged at the International Stadium.
George Horne became the first Scottish scrum-half to score a Test hat-trick with his treble. The impressive Adam Hastings grabbed a double while George Turner, Tommy Seymour, John Barclay and Stuart McInally also crossed as Scotland secured their first back-to-back clean sheets for 55 years.
Townsend said: "Credit to the players for that, to keep going hard in defence. In the last two games our forwards have delivered in a number of areas, especially around the set-piece.
"Straight away we put them under pressure and our maul got better. We forced mistakes at their lineout so that was good to see.
"George Horne and Adam Hastings both played with real confidence and speed. They were very busy. Adam had a real balance to his game and put some excellent attacking kicks in during the first half.
"It was a good game for them. They looked confident and fit and obviously they scored a few tries.
"It is important that we recover well tomorrow then do what we can over the next few days to be in the best condition possible to play our best rugby on Sunday."
