BADAN METEOROLOGI,
KLIMATOLOGI DAN GEOFISIKA
Indonesian Weather Bulletin for Shipping
( Metarea XI)
BMKG Jakarta, Friday 11 September 2026 At 0600 UTC
Part I : Warning
LOW PRESSURE AT 13.1 LU 112.7 BT 1007 HPA MAXIMUM WINDS 15 KNOTS MOVING TO NNW
Part II : General Synopsis
Friday 11 September 2026 at 00 UTC SOUTHEASTERLY TO SOUTHWESTERLY LIGHT TO FRESH FLOW IN THE NORTHERN PART OF INDONESIA EASTERLY TO SOUTHEASTERLY LIGHT TO STRONG FLOW IN THE SOUTHERN PART OF INDONESIA
Part III : Area Forecasts
Valid until Saturday 12 September 2026 at 06 UTC
INDIAN OCEAN WESTERN OF ACEH
Easterly
6-5 kt
Moderate Sea
INDIAN OCEAN WESTERN OF LAMPUNG
Southeasterly
18-16 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF JAVA
Easterly
18-17 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF BALI
Easterly
17-15 kt
Moderate Sea
NORTH NATUNA SEA
Westerly
11-10 kt
Slight Sea
KARIMATA STRAIT
Easterly
12-11 kt
Slight Sea
JAVA SEA
Southeasterly
19-17 kt
Moderate Sea
MAKASSAR STRAIT
Easterly
17-15 kt
Moderate Sea
BALI SEA
Easterly
13-11 kt
Slight Sea
SUMBAWA SEA
Easterly
17-15 kt
Slight Sea
FLORES SEA
Easterly
16-14 kt
Slight Sea
BANDA SEA
Southeasterly
17-15 kt
Slight Sea
CERAM SEA
Easterly
14-13 kt
Slight Sea
SULAWESI SEA
Easterly
10-8 kt
Slight Sea
MOLLUCA SEA
Westerly
14-11 kt
Slight Sea
WESTERN PART OF PACIFIC OCEAN
Westerly
15-13 kt
Slight Sea
ARAFURA SEA
Southeasterly
19-17 kt
Moderate Sea
⚠️ Important Notes
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
Reference Scales
Beaufort Wind Scale
| Force | Description | Speed (knots) |
|---|---|---|
| 0 | Calm | < 1 |
| 1 | Light air | 1-3 |
| 2 | Light breeze | 4-6 |
| 3 | Gentle breeze | 7-10 |
| 4 | Moderate breeze | 11-16 |
| 5 | Fresh breeze | 17-21 |
| 6 | Strong breeze | 22-27 |
| 7 | Near gale | 28-33 |
| 8 | Gale | 34-40 |
| 9 | Strong gale | 41-47 |
Douglas Sea Scale
| Grade | Description | Height (m) |
|---|---|---|
| 0 | Calm (Glassy) | 0 |
| 1 | Calm (Rippled) | 0-0.1 |
| 2 | Smooth | 0.1-0.5 |
| 3 | Slight | 0.5-1.25 |
| 4 | Moderate | 1.25-2.5 |
| 5 | Rough | 2.5-4 |
| 6 | Very rough | 4-6 |
| 7 | High | 6-9 |
| 8 | Very high | 9-14 |
| 9 | Phenomenal | >14 |
KONTAK KAMI :
Jl. Angkasa I No.2 Kemayoran, Jakarta Pusat 10610, PO Box 3540 Jkt.
Call Center (021) 196
Fax (021) 4246703
cc196@bmkg.go.id
TAUTAN :
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