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(UPDATE - 6:40 p.m.) Tropical storm "Lawin" continued to intensify after it slowed and changed course earlier on Saturday.
In its 5 p.m. update, the Philippine Atmospheric, Geophysical and Astronomical Services Administration said Lawin's winds had increased to 105 kilometers per hour near its center, gusting up to 135 kph, from earlier Saturday's 95 kph with gusts of 130 kph.
The center of the storm was last tracked to 405 kilometers east of Borongan, Eastern Samar as it moved slowly north northwest across the Philippine Sea.
Storm signal number 2 remains over Eastern Samar and storm signal number 1 over Sorsogon, N. Samar, W. Samar and Leyte.
By Sunday afternoon, Lawin will be 460 km east of Catarman, Northern Samar and 415 km
east of Virac, Catanduanes by Monday afternoon.
Heavy to intense rains can be expected in areas within the storm's 600 km diameter.
PAGASA said Eastern Samar will experience stormy weather with rough to very rough seas. Residents living near coastal and low-lying areas were alerted against possible flashfloods and storm surges. The rest of Eastern Visayas was expected to experience rains and gusty winds.
Palawan, the rest of Visayas, Zamboanga, Northern Mindanao and CARAGA will have cloudy skies with occasional moderate to heavy rains, PAGASA said. Metro Manila and the rest of the country were forecast to have partly cloudy skies with brief rainshowers or thunderstorms.