BADAN METEOROLOGI,
KLIMATOLOGI DAN GEOFISIKA
Indonesian Weather Bulletin for Shipping
( Metarea XI)
BMKG Jakarta, Friday 09 May 2025 At 1800 UTC
Part I : Warning
NIL
Part II : General Synopsis
Friday 09 May 2025 at 00 UTC NORTHEASTERLY TO EASTERLY LIGHT TO MODERATE FLOW IN THE NORTHERN PART OF INDONESIA EASTERLY TO SOUTHEASTERLY GENTLE TO FRESH FLOW IN THE SOUTHERN PART OF INDONESIA
Part III : Area Forecasts
Valid until Saturday 10 May 2025 at 18 UTC
MALACCA STRAIT
Westerly
7-27 kt
Moderate Sea
INDIAN OCEAN WESTERN OF ACEH
Westerly
6-25 kt
Moderate Sea
INDIAN OCEAN WESTERN OF LAMPUNG
Northeasterly
0-19 kt
Moderate Sea
INDIAN OCEAN SOUTHERN OF JAVA
Northeasterly
0-16 kt
Moderate Sea
INDIAN OCEAN SOUTHERN OF BALI
Easterly
5-23 kt
Moderate Sea
NORTH NATUNA SEA
Northeasterly
0-12 kt
Smooth Sea
KARIMATA STRAIT
Easterly
0-14 kt
Smooth Sea
JAVA SEA
Easterly
2-18 kt
Slight Sea
MAKASSAR STRAIT
Northeasterly
1-27 kt
Slight Sea
BALI SEA
Easterly
4-12 kt
Slight Sea
SUMBAWA SEA
Easterly
1-23 kt
Slight Sea
FLORES SEA
Easterly
1-24 kt
Slight Sea
BANDA SEA
Southeasterly
0-27 kt
Moderate Sea
CERAM SEA
Northwesterly
1-20 kt
Moderate Sea
SULAWESI SEA
Easterly
1-17 kt
Slight Sea
MOLLUCA SEA
Northwesterly
0-22 kt
Moderate Sea
WESTERN PART OF PACIFIC OCEAN
Northerly
0-23 kt
Slight Sea
ARAFURA SEA
Northeasterly
4-37 kt
Rough 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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