Tropical storm could bring heavy rain to Japan's southern Kanto region

Tropical Storm Ewiniar is expected to come closest to Japan's Izu Islands in the Pacific Ocean between Friday morning and noon. It could bring heavy rain to the islands and the southern Kanto region.

The Meteorological Agency says the storm is moving northward over waters south of Japan.

Atmospheric conditions could become unstable in the southern Kanto region and the Izu Islands. These areas could see more than 30 millimeters of rain per hour accompanied by lightning from before dawn until before noon on Friday.

In the 24 hours through Friday evening, rainfall could reach up to 100 millimeters in the regions. Weather officials say warning-level torrential rain is possible, depending on the storm's path.

Maximum winds of 72 kilometers per hour are forecast on Friday for the Izu Islands and 64.8 kilometers per hour for off the Kanto region. Peak gusts could reach 108 kilometers per hour.

Waves could be as high as 6 meters in the Izu Islands and 4 meters off Kanto.

Weather officials are calling for caution against landslides, flooding in low-lying areas, swollen rivers and high winds. Rain and winds could intensify during the morning commuting hours on Friday.