BADAN METEOROLOGI,
KLIMATOLOGI DAN GEOFISIKA
Indonesian Weather Bulletin for Shipping
( Metarea XI)
BMKG Jakarta, Friday 22 August 2025 At 1800 UTC
Part I : Warning
TROPICAL LOW 90W AT 16.1°N 122.5° E 1006 HPA MAXIMUM WINDS 20 KNOTS MOVING TO NW
Part II : General Synopsis
Friday 22 August 2025 at 00 UTC NORTHEASTERLY TO SOUTHERLY GENTLE TO FRESH 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 Saturday 23 August 2025 at 18 UTC
MALACCA STRAIT
Northerly
5-9 kt
Slight Sea
INDIAN OCEAN WESTERN OF ACEH
Westerly
1-15 kt
Moderate Sea
INDIAN OCEAN WESTERN OF LAMPUNG
Northerly
1-10 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF JAVA
Easterly
1-11 kt
Rough Sea
INDIAN OCEAN SOUTHERN OF BALI
Easterly
9-12 kt
Rough Sea
NORTH NATUNA SEA
Westerly
4-12 kt
Slight Sea
KARIMATA STRAIT
Northerly
4-11 kt
Slight Sea
JAVA SEA
Easterly
7-11 kt
Slight Sea
MAKASSAR STRAIT
Easterly
2-13 kt
Moderate Sea
BALI SEA
Easterly
3-10 kt
Moderate Sea
SUMBAWA SEA
Easterly
4-12 kt
Moderate Sea
FLORES SEA
Easterly
3-15 kt
Slight Sea
BANDA SEA
Southeasterly
2-19 kt
Moderate Sea
CERAM SEA
Northerly
1-13 kt
Moderate Sea
SULAWESI SEA
Westerly
1-15 kt
Moderate Sea
MOLLUCA SEA
Westerly
1-15 kt
Moderate Sea
WESTERN PART OF PACIFIC OCEAN
Westerly
1-18 kt
Moderate Sea
ARAFURA SEA
Southeasterly
8-20 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 :
BULETIN :
© 2024 - Badan Meteorologi, Klimatologi, dan Geofisika
Kembali Keatas