For the next two days, colliding air currents will cause strong winds and heavy rains in Guangzhou, capital of southern China's Guangdong province and a major gateway to the outside world, said Guangdong Provincial Meteorological Observatory.

The observatory predicted showers and thunderstorms for Monday and Tuesday evening in northwestern and central parts of Guangdong province. The rainy weather will gradually move out of the province by Wednesday.

Guangzhou will probably see hail storms in the next two days in addition to the heavy rains and strong winds.

A forecast produced by the observatory said that it was difficult to forecast the weather in Guangdong because the region is between midway between the rainy and non-rainy map zones