The organizers of the 2020 Tokyo Olympic and Paralympic Games will spray artificial snow at a canoeing test event to be held next week to check its effectiveness in preventing heatstroke.
Test events are being held to prepare for the upcoming Tokyo Games. Coming up with countermeasures to minimize the danger heat presents to the health of athletes and spectators is high on the agenda.
Weather officials say the threat of heavy snowfall has eased for central Tokyo, which received only a light dusting through Saturday afternoon as a cold air mass and low-pressure system moved over the area.
Snow started falling across the capital and surrounding Kanto region early on Saturday, accumulating even in some areas on the plains.
Visitors are flocking to the city of Sapporo on Japan's northern island of Hokkaido to see snow and ice sculptures as the annual snow festival kicks off.
The festival, which marks its 70th anniversary this year, is being held in three locations across the city. At its main Odori Park site, the event opened with a trumpet fanfare.
The continued disruption of air traffic caused by heavy snowfall forced more than 40 travelers to spend a night at New Chitose Airport in Hokkaido on Sunday.
The disruption began on Saturday when 105 flights were canceled and about 2,000 people spent the night at the airport near Sapporo in northern Japan.