BADAN METEOROLOGI,
KLIMATOLOGI DAN GEOFISIKA
Indonesian Weather Bulletin for Shipping
( Metarea XI)
BMKG Jakarta, Saturday 31 May 2025 At 0000 UTC
Part I : Warning
NIL
Part II : General Synopsis
Friday 30 May 2025 at 12 UTC SOUTHEASTERLY TO SOUTHWESTERLY LIGHT TO MODERATE FLOW IN THE NORTHERN PART OF INDONESIA EASTERLY TO SOUTHEASTERLY LIGHT TO MODERATE FLOW IN THE SOUTHERN PART OF INDONESIA
Part III : Area Forecasts
Valid until Sunday 01 June 2025 at 00 UTC
MALACCA STRAIT
Northerly
3-16 kt
Moderate Sea
INDIAN OCEAN WESTERN OF ACEH
Northerly
1-13 kt
Moderate Sea
INDIAN OCEAN WESTERN OF LAMPUNG
Easterly
8-11 kt
Moderate Sea
INDIAN OCEAN SOUTHERN OF JAVA
Easterly
8-10 kt
Moderate Sea
INDIAN OCEAN SOUTHERN OF BALI
Southeasterly
10-17 kt
Rough Sea
NORTH NATUNA SEA
Westerly
6-13 kt
Slight Sea
KARIMATA STRAIT
Northeasterly
2-15 kt
Smooth Sea
JAVA SEA
Easterly
2-13 kt
Slight Sea
MAKASSAR STRAIT
Easterly
1-14 kt
Slight Sea
BALI SEA
Northeasterly
3-15 kt
Slight Sea
SUMBAWA SEA
Easterly
1-14 kt
Slight Sea
FLORES SEA
Easterly
3-16 kt
Moderate Sea
BANDA SEA
Easterly
1-19 kt
Moderate Sea
CERAM SEA
Northwesterly
1-9 kt
Slight Sea
SULAWESI SEA
Northerly
1-10 kt
Smooth Sea
MOLLUCA SEA
Northerly
0-9 kt
Smooth Sea
WESTERN PART OF PACIFIC OCEAN
Northerly
1-10 kt
Slight Sea
ARAFURA SEA
Southeasterly
6-20 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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