BADAN METEOROLOGI,
KLIMATOLOGI DAN GEOFISIKA
Indonesian Weather Bulletin for Shipping
( Metarea XI)
BMKG Jakarta, Thursday 26 June 2025 At 1200 UTC
Part I : Warning
NIL
Part II : General Synopsis
Thursday 26 June 2025 at 00 UTC SOUTHEASTERLY TO SOUTHWESTERLY LIGHT TO MODERATE FLOW IN THE NORTHERN PART OF INDONESIA EASTERLY TO SOUTHEASTERLY GENTLE TO STRONG FLOW IN THE SOUTHERN PART OF INDONESIA
Part III : Area Forecasts
Valid until Friday 27 June 2025 at 12 UTC
MALACCA STRAIT
Northerly
1-18 kt
Moderate Sea
INDIAN OCEAN WESTERN OF ACEH
Southeasterly
8-16 kt
Moderate Sea
INDIAN OCEAN WESTERN OF LAMPUNG
Southeasterly
13-20 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF JAVA
Southeasterly
15-20 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF BALI
Easterly
15-23 kt
Rough Sea
NORTH NATUNA SEA
Westerly
2-17 kt
Slight Sea
KARIMATA STRAIT
Easterly
5-16 kt
Slight Sea
JAVA SEA
Easterly
12-20 kt
Moderate Sea
MAKASSAR STRAIT
Easterly
3-20 kt
Moderate Sea
BALI SEA
Easterly
3-16 kt
Slight Sea
SUMBAWA SEA
Southeasterly
5-18 kt
Moderate Sea
FLORES SEA
Easterly
3-20 kt
Moderate Sea
BANDA SEA
Southeasterly
3-24 kt
Moderate Sea
CERAM SEA
Northeasterly
1-11 kt
Slight Sea
SULAWESI SEA
Westerly
2-12 kt
Slight Sea
MOLLUCA SEA
Westerly
1-17 kt
Slight Sea
WESTERN PART OF PACIFIC OCEAN
Northeasterly
1-11 kt
Slight Sea
ARAFURA SEA
Easterly
4-24 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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