While the worst of the heavy rain and floods may finally be over, state weather forecasters warned Wednesday of continued intense rain in Metro Manila and nearby provinces in Luzon.

The Philippine Atmospheric Geophysical and Astronomical Services Administration also warned of flash floods and landslides over the western part of Luzon.

"Inaasahan natin ang pag-ulan sa Metro Manila. Ang taya ng PAGASA, hindi siya ganoon kalakas tulad ng naranasan natin kahapon," PAGASA forecaster Raymond Ordinario said in an interview on dzBB radio.

"Asahan natin magkakaroon ng malakas na ulan pero nakita natin less intense compared sa kahapon," he added.

He said rain is also expected over provinces like Cavite, Laguna, Rizal, Bulacan, Bataan, and even La Union in Northern Luzon.

Ordinario said this is due to the monsoon being enhanced by tropical cyclone "Haikui," which is heading toward Eastern China.

While "Haikui" is expected to make landfall on Eastern China within Wednesday, he said the weather will likely improve only on Thursday.

"By tomorrow improvement na ng weather," he said.

PAGASA's 5 a.m. bulletin indicated the southwest monsoon is still affecting Luzon and Visayas.

"Luzon will experience occasional rain becoming frequent over the Western section of Luzon which may trigger flash floods and landslides," it said.

Visayas and Mindanao will be partly cloudy to cloudy with isolated rain showers or thunderstorms, it added.

Moderate to strong winds from the southwest will prevail throughout the archipelago, making coastal waters moderate to rough.

Also, PAGASA warned of strong to gale force winds associated with the southwest monsoon that may affect the seaboards of Luzon.

"Fishing boats and other small seacrafts are advised not to venture out into the sea while larger sea vessels are alerted against big waves," it said. –KG, GMA News