Weather officials are forecasting snow in the greater Tokyo area from Monday afternoon through Tuesday. Even a little amount of snow could disrupt traffic in urban areas if it accumulates on roads and railway tracks.
A low-pressure system and a high altitude cold air mass are expected to bring snowfall to wide areas around Tokyo.
Banks across Japan are buying trucks fitted with ATMs so that customers can withdraw cash in the event of a massive natural disaster.
The vehicles were sent to areas hit by a major earthquake in northern Japan last June, and areas flooded by Typhoon Hagibis last October.
Japanese Foreign Minister Toshimitsu Motegi and his Chinese counterpart Wang Yi discussed the outbreak of coronavirus by telephone on Sunday evening.
Motegi told Wang that Japan will provide whatever support it can to limit the spread of the virus.
Japan's health ministry says it has confirmed the country's fourth case of the new coronavirus.
The ministry said on Sunday that the patient is a male tourist in his 40s from the Chinese city of Wuhan.
Japanese Prime Minister Shinzo Abe says the government will evacuate nationals who want to leave the Chinese city of Wuhan, the epicenter of a coronavirus outbreak.
Abe told reporters on Sunday that the government worked through the weekend to determine whether citizens want to leave Wuhan, and to examine ways to take them out of the city, which is under lockdown.
A South Korean woman has visited the station in Tokyo where her son was killed 19 years ago while attempting to save a man who had fallen onto the tracks.
The 26-year-old student, Lee Su-hyon, and a Japanese photographer jumped from the platform at JR Shin-Okubo station to try to save the man on January 26, 2001. All three were hit by a train and killed.
Japanese Prime Minister Shinzo Abe says the government will bring home all nationals who wish to leave the Chinese city of Wuhan, which is under lockdown due to an outbreak of coronavirus.
Abe told reporters on Sunday that the government plans to charter commercial aircraft once arrangements have been made with the Chinese government.
About 50 coffee shops across Japan are donating part of their sales to Australia, where wildfires have burned forests and farm land totaling 170,000 square kilometers, or about half the size of Japan.
More than 30 people have died since last September.
NHK has learned that Japan's foreign ministry is making arrangements with the Chinese government to evacuate Japanese nationals from the city of Wuhan, the epicenter of the deadly virus outbreak.
The ministry on Friday raised the infectious disease warning for Hubei Province to the second-highest level of three, and is urging Japanese citizens not to travel there.
Japanese investigators say an arrested former employee of Tokyo-based telecommunications giant SoftBank Corporation admitted he received personal benefits from a Russian official.
Forty-eight-year-old Yutaka Araki allegedly accessed the company's confidential information on a corporate server in February last year. He was arrested on Saturday on suspicion of violating a law aimed at preventing unfair competition.
The Ikata nuclear power plant in western Japan has had a short electricity outage, causing suspension of maintenance work on one of its reactors. All three reactors at the plant are currently offline.
Officials at Shikoku Electric Power Company and Ehime Prefecture say the plant lost power at around 3:40 p.m. on Saturday.
Hotels in Japan are concerned about the possible impact of China's decision to halt overseas group trips beginning Monday in a bid to contain the spread of the new coronavirus.
One hotel in central Tokyo usually has about half of its 90 rooms occupied by guests from China.
A former employee of Tokyo-based telecommunications giant SoftBank Corporation has been arrested on suspicion of hacking the company's confidential information.
Forty-eight-year-old Yutaka Araki was arrested by Tokyo police on Saturday. He is suspected of violating a law on preventing unfair competition.
The Japan Tourism Agency has made video clips showing manners and customs of the country amid the rise in the number of foreign travelers.
The ten one-minute videos seek to cope with a phenomenon known as "over-tourism," which causes tensions between visitors and residents.