MANILA — Tropical Storm Maymay has weakened into a low pressure area (LPA) over the Philippine Sea and is expected to be absorbed by Tropical Cyclone Dolphin, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said Friday.

In its 5 a.m. tropical cyclone bulletin, PAGASA said the LPA, formerly Tropical Storm Maymay, was located 620 kilometers east of Echague, Isabela, with a central pressure of 1002 hectopascals.

No Tropical Cyclone Wind Signal is currently in effect.

PAGASA said the southwest monsoon, or habagat, will continue to bring heavy rainfall over parts of the country, with details contained in Weather Advisory No. 22.

The weather bureau also warned of strong to gale-force wind gusts affecting most parts of the country from Friday until Monday, particularly in coastal and upland areas exposed to winds.

A gale warning remains in effect over the seaboard of Extreme Northern Luzon.

Very rough seas of up to 4.5 meters are expected over the seaboard of Batanes, where sea travel remains risky for all types of vessels. PAGASA advised all mariners to remain in port or seek shelter until sea conditions improve.

Rough seas are also forecast over the seaboards of the Babuyan Islands, northeastern mainland Cagayan, Davao Oriental, Isabela, northeastern Aurora, Ilocos Norte, Camarines Norte, Camarines Sur, Polillo Islands, Catanduanes, Northern Samar, and the remaining seaboard of mainland Cagayan. Small seacraft operators, including motorbancas, were advised not to venture out to sea under these conditions.

Moderate seas are expected over several other coastal areas, including parts of Luzon, Visayas, and Mindanao, where operators of small vessels were urged to take precautionary measures and avoid navigation if possible.

PAGASA said unfavorable atmospheric conditions caused Maymay to weaken into an LPA at 2 a.m. Friday. The remnant circulation is expected to be fully assimilated into Tropical Cyclone Dolphin within the next few hours.

Despite the weakening of the weather disturbance, the agency warned that heavy rainfall and gusty winds may still affect some areas due to the enhanced southwest monsoon.

PAGASA advised the public and local disaster risk reduction and management offices to continue taking necessary precautions and to monitor heavy rainfall warnings, thunderstorm advisories, and other weather updates.

Unless the system redevelops, PAGASA said this is the final tropical cyclone bulletin for the former Tropical Storm Maymay.