Forecast track of Typhoon Ompong (Mangkhut) as of September 14, 2018, 11 am. Image from PAGASA

The typhoon is also enhancing the southwest monsoon or hanging habagat. The enhanced southwest monsoon could trigger moderate to heavy rain in the Visayas, and light to heavy rain in Palawan, the Zamboanga Peninsula, Northern Mindanao, and Caraga.

Residents of areas affected by the southwest monsoon should be on alert for flash floods and landslides, too.

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