Typhoon Jangmi was moving northward toward Okinawa Prefecture in southwestern Japan on the morning of June 1.

Warnings for violent winds and high waves have been issued for the main island of Okinawa.

According to the Japan Meteorological Agency, the storm is expected to approach the Amami region of southern Kagoshima Prefecture by the morning of June 2, before picking up speed and moving eastward toward the Kyushu and Shikoku regions.

Winds with maximum gusts of 50 meters per second are expected in Okinawa and southern Kyushu on June 2.

On June 3, the sixth typhoon of the year is likely to reach a wide range of areas on Japan's main island of Honshu, possibly affecting metropolises like Osaka, Nagoya and Tokyo.

Agency officials are urging people to evacuate before the rain and winds intensify.

They are calling for caution against heavy rain, strong winds, high waves, landslides, rising river levels and flooding.

People are urged to refrain from nonessential outings on June 1 and 2 in Okinawa and the Amami region and on June 2 and 3 in areas from western to eastern Japan.

Large amounts of rain are anticipated in Okinawa and Amami through the morning of June 2, Kyushu and Shikoku during the day on June 2 and Tokai and Kanto on June 3.

Transportation systems have already been disrupted, with All Nippon Airways and Japan Airlines canceling all flights between Haneda Airport in Tokyo and Naha Airport in Okinawa on June 1.

All Nippon Airways canceled 104 flights connecting Okinawa with other locations for the entire day, while Japan Airlines similarly canceled 71 flights, affecting more than 20,000 passengers combined.

For June 2, All Nippon Airways has decided to cancel 12 flights to and from Naha in the morning, and Japan Airlines will cancel 124 flights to and from Kyushu and other areas, affecting more than 6,000 people in total.

JR Central said the Tokaido Shinkansen connecting Tokyo and Osaka may experience sudden service suspensions or bullet train cancellations in some sections from the evening of June 2 and all day on June 3.