Signal no. 1 up in several areas

MANILA (UPDATED) — Expect weekend rains in large parts of Luzon and Visayas as the low pressure area (LPA) east of Bicol developed into Tropical Depression Rosal Saturday morning, according to the state weather forecaster.

Rosal will bring moderate to heavy with at times intense rains over Bicol Region and Quezon province, while moderate to heavy rains are possible over Mimaropa and Western Visayas, the agency said in its 11 a.m. bulletin.

PAGASA added that light to moderate with at times heavy rains are likely over Aurora and the rest of Calabarzon and Visayas.

By Sunday, light to moderate with at times heavy rains will persist over Bicol Region, Quezon, and Aurora.

"Under these conditions, flooding and rain-induced landslides are expected," it warned.

Located 110 kilometers north-northeast of Virac, Catanduanes at 10 a.m., Rosal packs winds of 45 kilometers per hour near the center.

It is moving northwestward at 20 kph.

Signal no. 1 was raised in the following areas, where winds of 39 to 61 kph can be expected in 36 hours.

• Catanduanes
• the eastern portion of Camarines Sur (Caramoan, Presentacion, Garchitorena, Lagonoy, San Jose, Tigaon, Sagñay)
• the eastern portion of Albay (City of Tabaco, Bacacay, Rapu-Rapu, Malilipot, Malinao, Tiwi)

Rosal is predicted to become a tropical storm in the next 24 hours, the weather bureau said.

"However, due to the interaction with the Northeast Monsoon, the tropical cyclone may weaken into [a] tropical depression on Monday and become a remnant low on Tuesday," it added.

For more updates, visit the ABS-CBN weather center.

• LPA may become a tropical depression by Saturday; weekend rains ahead