The region is prone to "Sumatras"—sudden, violent thunderstorms with heavy rain that can reduce visibility to near zero in minutes.
Navigating the Strait of Malacca and Singapore: A Comprehensive Passage Planning Guide passage planning guide malacca and singapore straits pdf
Navigation is constrained by several critical shoals and wrecks. Large vessels must carefully calculate their Under Keel Clearance (UKC), accounting for "squat" effects in shallow areas. The region is prone to "Sumatras"—sudden
Certain areas, particularly in the Singapore Strait, are designated for vessels with a draft of 15 meters or more. 2. Key Challenges in the Straits particularly in the Singapore Strait