The Bali Observer

Saturday, 10 October 2026

BMKG warns of waves up to 3,5 metres in East Nusa Tenggara

BMKG forecast waves of up to 3,5 metres in East Nusa Tenggara on Oct. 7, with the western Sumba Strait facing the highest risk for ferry navigation.

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Editor: Mursyid Sonsang

· 2 min read

Open the larger photo. Archive photo: Geothermal Power Plant (PLTP) in the Sokoria area, Ende, East Nusa Tenggara, Indonesia.
Archive photo: Geothermal Power Plant (PLTP) in the Sokoria area, Ende, East Nusa Tenggara, Indonesia. · Photo: Selisik / Wikimedia Commons, CC BY-SA 4.0

Ende — Indonesia’s Meteorology, Climatology and Geophysical Agency (BMKG) warned on Oct. 7 that waves of up to 3,5 metres could affect waters around East Nusa Tenggara, with conditions expected from 08.00 WITA through the morning of Oct. 8.

The warning covered waters where waves of 1,25 to 2,5 metres were forecast, as well as the western part of the Sumba Strait, where waves of 2,5 to 3,5 metres were possible. BMKG forecaster Nimrot Adipapa Sipa of the Tenau-Kupang station said the higher waves could threaten navigation safety, particularly for ferries.

Why it matters for sea users in East Nusa Tenggara

For foreign visitors and residents using ferries or other vessels in the province, the warning means that sea conditions may be hazardous during the stated period. The report specifically identifies the western Sumba Strait as the area facing the highest forecast waves and ferries as especially exposed to the safety risk.

The forecast described generally partly cloudy conditions over East Nusa Tenggara’s waters, with winds blowing from the northeast to southeast. The report did not state a closure of ports or ferry routes, nor did it provide a broader travel restriction. It said the higher-wave conditions were expected to continue until the morning of Oct. 8.

Sources

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