Manila: Although Tropical Depression (TD) Caloy is unlikely to directly affect the country throughout the forecast period, its trough is forecast to cause rains in some areas of the Visayas and Mindanao, the weather bureau said Monday. Caloy's trough will cause scattered rains and thunderstorms over Eastern Samar, Dinagat Islands, and Surigao del Norte.

According to Philippines News Agency, moderate to heavy rains in those areas could result in floods or landslides, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said. In its 5 p.m. bulletin, PAGASA said Caloy maintained its strength, packing maximum sustained winds of 45 kph near the center, and gustiness of up to 55 kph.

The TD was last located 530 kilometers east of Guiuan, Eastern Samar, and is moving west northwestward at 15 kph. No wind signal is hoisted, and Caloy is still forecast to weaken into a remnant low within the day.

Meanwhile, up to moderate seas will prevail over the following coastal waters: seaboards of Batanes, Cagayan, Isabela, Ilocos Norte, northern Ilocos Sur, Aurora, Camarines Norte, Northern Samar, Eastern Samar, and Surigao del Sur; western seaboard of Pangasinan; northern seaboards of Camarines Sur; northern and eastern seaboards of Quezon including Polillo Islands and Catanduanes; eastern seaboards of Albay, Sorsogon, Eastern Samar, Dinagat Islands, Siargao-Bucas Grande Islands, and Davao Oriental.

Mariners of motorized bancas (boats) and similarly sized vessels have been advised to take precautionary measures and to avoid navigation under these conditions.