Red rainfall warning up over Metro Manila, nearby areas amid habagatPAGASA rainfall warning map showing areas under red, orange and yellow warning levels due to heavy rains brought by the enhanced southwest monsoon or habagat on Aug. 8, 2026. MANILA, Philippines — A red rainfall warning has been raised over Metro Manila and several areas in Luzon due to heavy rains brought by the enhanced southwest monsoon or habagat. In its heavy rainfall advisory at 2 p.m. on Saturday, August 8, state weather bureau PAGASA said serious flooding is expected in flood-prone areas under the red warning level. The warning comes as the southwest monsoon continues to bring heavy rains across Luzon. Despite the cyclone's dissipation, PAGASA said habagat rains are expected to continue affecting Luzon and Visayas over the next 24 hours.