Weather Bulletin on METAREA XI
BMKG Jakarta, Tuesday 13 January 2026 At 0000 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 LOW PRESSURE AREA 91W AT 3.8°S 138.7°E 1006HPA MAXIMUM WINDS 15 KT MOVING TO NW 

Part II : General Synopsis, Monday 12 January 2026 at 12 UTC
NORTHWESTERLY TO NORTHEASTERLY GENTLE TO STRONG FLOW IN THE NORTHERN PART OF INDONESIA SOUTHWESTERLY TO NORTHWESTERLY GENTLE TO STRONG FLOW IN THE SOUTHERN PART OF INDONESIA 

Part III : Area forecasts to Wednesday 14 January 2026 at 00 UTC
MALACCA STRAIT (Northerly, 7-11 kt, Slight Sea)
INDIAN OCEAN WESTERN OF ACEH (Northwesterly, 2-15 kt, Moderate Sea)
INDIAN OCEAN WESTERN OF LAMPUNG (Westerly, 3-16 kt, Moderate Sea)
INDIAN OCEAN SOUTHERN OF JAVA (Westerly, 5-16 kt, Moderate Sea)
INDIAN OCEAN SOUTHERN OF BALI (Northwesterly, 5-20 kt, Moderate Sea)
NORTH NATUNA SEA (Northeasterly, 11-23 kt, Rough Sea)
KARIMATA STRAIT (Northerly, 14-20 kt, Moderate Sea)
JAVA SEA (Northwesterly, 6-24 kt, Moderate Sea)
MAKASSAR STRAIT (Northwesterly, 7-22 kt, Moderate Sea)
BALI SEA (Northwesterly, 13-23 kt, Moderate Sea)
SUMBAWA SEA (Northwesterly, 17-24 kt, Moderate Sea)
FLORES SEA (Westerly, 10-23 kt, Moderate Sea)
BANDA SEA (Westerly, 1-23 kt, Moderate Sea)
CERAM SEA (Westerly, 5-18 kt, Moderate Sea)
SULAWESI SEA (Northwesterly, 1-15 kt, Moderate Sea)
MOLLUCA SEA (Northwesterly, 3-19 kt, Rough Sea)
WESTERN PART OF PACIFIC OCEAN (Northwesterly, 5-25 kt, Moderate Sea)
ARAFURA SEA (Westerly, 12-24 kt, Rough Sea)