According to Motorsport.com, the teams met early Saturday morning in Mategi to discuss with championship organizers whether qualifying should be postponed due to the poor weather forecast in Tochigi Prefecture.
However, it was ultimately decided that Q1 would still go ahead at 15:05 local time (GMT +9) as planned, with Q2 taking place at 15:30.
Alternatively, two decisive sessions could be held earlier in the day before the heaviest rain from Typhoon Talas, which is forecast to pass through Japan’s Kanto region on Saturday, is expected to hit the track.
In the event that the rain is too heavy for qualifying to go ahead safely at the scheduled time, MotoGP can consider two options that have recent precedents.
Qualifying could be delayed until Sunday morning before the actual race, which is due to start at 3pm local time, as was the case at the 2019 Australian Grand Prix at Phillip Island when strong winds prevented qualifying on Saturday.
Alternatively, the grid could be based on the time of Friday’s only practice, which was held in dry conditions, as opposed to FP2 on Saturday morning, which would mean Ducati rider Jack Miller starting from pole.
Title contenders Francesco Bagnaia (Ducati), Fabio Quartararo (Yamaha) and Aleix Espargaro (Aprilia) finished second, third and fourth respectively, while Marc Marquez started sixth at home Honda.