Weather Bulletin on METAREA XI
BMKG Jakarta, Tuesday 21 October 2025 At 0600 UTC
Wind speed in DOUGLAS SCALE 
Sea state in DOUGLAS SCALE 
Please be aware, wind gusts can be a further 40 percent stronger than the averages given here, and maximum waves may be up to twice the significant height 

Part I : Warning TROPICAL CYCLONE FENGSHEN AT 18.2°N 112.1°E 996HPA MAXIMUM WIND 40 KNOT MOVE TO SW LOW PRESSURE AREA 95S AT 5.6°S 97.2°E 1003HPA MAXIMUM WIND 25 KNOT MOVE TO NW  

Part II : General Synopsis, Monday 20 October 2025 at 12 UTC
NORTHEASTERLY TO NORTHWESTERLY GENTLE TO MODERATE FLOW IN THE NORTHERN PART OF INDONESIA EASTERLY TO SOUTHWESTERLY GENTLE TO MODERATE FLOW IN THE SOUTHERN PART OF INDONESIA 

Part III : Area forecasts to Wednesday 22 October 2025 at 06 UTC
MALACCA STRAIT (Northwesterly, 18-20 kt, Moderate Sea)
INDIAN OCEAN WESTERN OF ACEH (Northwesterly, 6-16 kt, Moderate Sea)
INDIAN OCEAN WESTERN OF LAMPUNG (Northeasterly, 1-13 kt, Moderate Sea)
INDIAN OCEAN SOUTHERN OF JAVA (Southeasterly, 5-15 kt, Moderate Sea)
INDIAN OCEAN SOUTHERN OF BALI (Easterly, 4-12 kt, Moderate Sea)
NORTH NATUNA SEA (Northerly, 3-17 kt, Moderate Sea)
KARIMATA STRAIT (Northwesterly, 1-16 kt, Moderate Sea)
JAVA SEA (Northerly, 1-12 kt, Slight Sea)
MAKASSAR STRAIT (Northerly, 1-9 kt, Slight Sea)
BALI SEA (Easterly, 1-10 kt, Slight Sea)
SUMBAWA SEA (Easterly, 3-9 kt, Slight Sea)
FLORES SEA (Easterly, 1-11 kt, Slight Sea)
BANDA SEA (Southeasterly, 2-16 kt, Slight Sea)
CERAM SEA (Northeasterly, 1-10 kt, Slight Sea)
SULAWESI SEA (Northwesterly, 2-9 kt, Slight Sea)
MOLLUCA SEA (Westerly, 2-12 kt, Moderate Sea)
WESTERN PART OF PACIFIC OCEAN (Northwesterly, 1-11 kt, Moderate Sea)
ARAFURA SEA (Southeasterly, 2-17 kt, Slight Sea)