Unstable weather forecast for Tokyo and other parts of Kanto region

Japanese weather officials are urging people in Tokyo and the rest of the Kanto region to be on the alert for sudden downpours, lightning, gusts and hailstorms on Monday.

The Meteorological Agency says unstable atmospheric conditions brought rain to some parts of the Kanto and Koshin regions on Monday morning.

Through Monday night, thunderclouds are expected to develop in some areas of Kanto, as the conditions become more unstable. The weather may abruptly change even if the sun is shining.

Officials are advising people to take shelter in sturdy buildings if the sky suddenly turns dark. This may be a sign of developed thunderheads approaching.