According to the department, the warning will remain in effect for the next 48 hours and applies to areas within the Divisional Secretariat divisions of Diwulapitiya, Mirigama, Attanagalla, Mahara, Gampaha, Minuwangoda, Ja-Ela, Katana and Wattala.
Authorities warned that roads located in low-lying areas may become inundated due to rising water levels and advised residents as well as motorists to exercise caution and remain alert.
The department further stated that Disaster Management Authorities have been informed and requested to take the necessary precautionary measures in affected areas.
