![heavy rain storm heavy rain storm](https://i.ytimg.com/vi/qTBHE2_dJeI/maxresdefault.jpg)
Going near easily flooded watercourses should also be avoided.
![heavy rain storm heavy rain storm](https://cdn.kalingatv.com/wp-content/uploads/2020/05/heavy-rain.jpg)
There are three levels of warning: AMBER, RED and BLACK. It is independent of other severe weather warnings such as tropical cyclone warning and landslip warning, which will be issued separately where necessary. The rainstorm warning system is designed to alert the public about the occurrence of heavy rain which is likely to bring about major disruptions, and to ensure a state of readiness within the essential services to deal with emergencies. Rain could be particularly heavy and persistent during May and June, causing severe traffic disruption and on occasions major floods and landslips resulting in casualties. The rainy season in Hong Kong is normally between April and September.