MANILA— Super Typhoon Champi strengthened further while moving west-northwestward over the Pacific Ocean on Tuesday, with the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) warning of scattered rains and thunderstorms in parts of Southern Luzon and the Visayas.

In its 4 a.m. bulletin, PAGASA said Champi was outside the Philippine Area of Responsibility (PAR), about 1,605 kilometers east of Central Luzon as of 3 a.m.

The tropical cyclone had maximum sustained winds of 195 kilometers per hour near the center and gusts of up to 240 kph. It was moving west-northwestward at 20 kph.

PAGASA said the typhoon’s trough was affecting the eastern sections of Southern Luzon and the Visayas, while easterlies were affecting Extreme Northern Luzon.

Palawan may experience cloudy skies with scattered rains and thunderstorms due to the intertropical convergence zone (ITCZ), with possible flash floods or landslides from moderate to at times heavy rainfall.

Similar weather conditions are expected in Catanduanes, Northern Samar, and Eastern Samar due to Champi’s trough.

Batanes and the Babuyan Islands may experience partly cloudy to cloudy skies with isolated rainshowers or thunderstorms caused by easterlies.

Metro Manila and the rest of the country may have partly cloudy to cloudy skies with isolated rainshowers or thunderstorms due to localized thunderstorms. Flash floods or landslides may occur during severe thunderstorms.

PAGASA also forecast moderate to strong winds from the northeast to northwest over the eastern sections of Luzon and the Visayas, with moderate to rough coastal waters reaching 1.5 to 2.8 meters.

The rest of Luzon and the Visayas may experience light to moderate winds from the northeast to northwest, with slight to moderate seas ranging from 0.6 to 2.5 meters.

Mindanao is expected to have light to moderate winds from the northwest to west, with coastal waters also ranging from 0.6 to 2.5 meters.

PAGASA advised the public to monitor official weather updates, particularly in areas at risk of heavy rainfall, flooding, and landslides.