MANILA, Philippines – Weather bureau PAGASA on Monday morning said it is tracking a potential cyclone off the eastern coast of norther Luzon.
In its 11 a.m. advisory, PAGASA said a shallow low pressure area (SLPA) was spotted 920 kilometers east of northern Luzon.
If the SLPA develops into a tropical cyclone within the Philippine Area of Responsibility (PAR), it will be named “Helen”.
PAGASA said the southwest monsoon, being enhanced by tropical storm Haikui located off southern Japan, will continue to bring rains over Panay Island and the western section of Luzon, particularly Pangasinan, Zambales, Batangas, Mindoro and Metro Manila.
At 10:30 a.m., PAGASA lowered the rain alert warning for Metro Manila from green to yellow, which means heavy rainfall (7.5 to 15 millimeters per hour) is expected within the next three hours.
A green warning signal means 15 to 30 millimeters (intense) of rainfall is expected within the next three hours.
Heavy rains since Sunday triggered the evacuation of thousands of residents in Marikina, Rizal and Quezon City as rivers and dams swelled.