The MET department says that Western, North Western, Northern, Central and Sabaragumawa provinces may experience thunder showers today.
In addition, strong winds around the coastal areas have also been predicted.
Meanwhile, the DMC requests the public to be vigilant regarding the rising water levels in the main rivers, if torrential rains are to continue.
The DMC further noted that there is a slight increase in the water levels of the Nilwala, Kalu and Gin rivers and in the Aththanagalla oya.
The NBRO added that landslide warnings have been extended to the Kandy, Ratnapura, Nuwara Eliya, Kegalle and Kalutara districts.