KUALA LUMPUR: Water surges, thunderstorms and large waves are among the hazards that could threaten lives during the northeast monsoon.

Fire and Rescue Department director-general Datuk Seri Nor Hisham Mohammad said the public should remain vigilant and avoid high-risk activities throughout the monsoon season.

He said one of the main threats was water surges, which frequently occur at recreational areas, particularly upstream river sections.

"Water surges, particularly at recreational and swimming areas, pose a significant risk at this time. They can occur suddenly, especially upstream and at rapids.