BMKG: Beware of High Sea Waves and Heavy Rain in Indonesian Territory

Wave heights of more than 2.5 meters are likely to occur in the northern waters of Sabang, the southern Sunda Strait, and the Arafura Sea. As for the waters in the Makassar Strait, Natuna Sea, Karimata Strait, Bali, and Nusa Tenggara, sea wave heights will vary from a low category of 1.25 meters to a medium of 2.5 meters.

Wave height forecast map
Wave height forecast map. (BMKG)

ACTNews, JAKARTA – The Meteorology, Climatology, and Geophysics Agency (BMKG) predicts that starting from August 28 to August 29, 2021, several areas of dense waters will experience high sea waves. The BMKG also states there will be heavy rain with strong winds in several regions.

"Wind patterns in the northern part of Indonesia generally move from Southeast-Southwest with wind speeds ranging from 4 to 20 knots. In southern Indonesia, they generally move from East-Southeast with speeds of 5 to 20 knots," said Head of the BMKG Maritime Affairs Meteorological Information Sub-Division, Ramlan, quoted from the official BMKG website, Saturday (8/28/2021).

He continued, wave heights of more than 2.5 meters are likely to occur in the northern waters of Sabang, the southern Sunda Strait, and the Arafura Sea. As for the waters in the Makassar Strait, Natuna Sea, Karimata Strait, Bali, and Nusa Tenggara, sea wave heights will vary from a low category of 1.25 meters to a medium of 2.5 meters.

The potential for heavy rain accompanied by lightning is likely to occur in several areas, such as in the waters of Kotabaru, the waters of East Kalimantan, the waters of North Kalimantan, and the Makassar Strait, Bone Bay, the waters of Wakatobi Islands, and the Banda Sea. Other potential areas that occur include the sea of Buru Island-Seram Island, Kaimana-Amamapare-Agats waters, northern waters of West Papua to Biak Island, followed by Cendrawasih Bay, and the Northern area of the Pacific Ocean of West Papua.

"The Cumulonimbus clouds or dark clouds in that location can cause strong winds and increase the height of the water waves," explained Ramlan.[]