At 11 p.m. today, Typhoon Lawin was spotted about 400 kilometers East of Catarman, Northern Samar with maximum sustained winds of 140 kilometers per hour near the center and gustiness of up to 170 kph. It is forecast to move North Northwest at 7 kph.
Public storm warning signal signal number 1 (30-60 kph winds) is still up in Samar provinces.
PAGASA advised residents living in low lying and mountainous areas under the public storm warning signal to be alerted against possible flashfloods and landslides.
Estimated rainfall amount is from 10 to 20 millimeters per hour (heavy - intense) within the 600-km diameter of Lawin, weather experts said.
Lawin enhances the Southwest Monsoon, bringing light to moderate rains in Western Visayas and Mindanao.
PAGASA also warned fishing boats and other small seacrafts not to venture out into the eastern seaboard of Southern Luzon, Visayas and Mindanao due to big waves.
Lawin is estimated to be at 335 km East of Virac, Catanduanes by Monday morning. By Tuesday morning, it will be at 525 km East of Infanta, Quezon and at 420 km East of Casiguran, Aurora by Wednesday morning.
Due to its slow movement, Lawin is predicted to stay inside the Philippine Area of Responsibility until Friday, PAGASA added.