GMDSS BULLETIN I 290900
ISSUED BY: INDIA METEOROLOGICAL DEPARTMENT, NEW DELHI
HIGH SEA FORECAST FOR MET. AREA VIII (N)
AREA OF COVERAGE: AREA OF THE INDIAN OCEAN ENCLOSED BY LINES FROM THE
INDO-
PAKISTAN FRONTIER AT 23O45\U2019N 68 DEG E TO 00 DEG N 6 DEG E, THECE
TO CAPE
GARDAFUI; THE EAST AFRICAN COAST SOUTH TO THE EQUATOR, THENCE TO 95
DEG E, TO
6 DEG N, THENCE NORTH EASTWARDS TO MYANMAR/THAIL FRONTIER IN 10 DEG N
98 DEG
30\U2019E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 09 UTC OF 29 TH AUGUST 2026 TO 00 UTC OF 31 ST AUGUST
2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC:
THE LOW-PRESSURE AREA OVER NORTHWEST BAY OF BENGAL & ADJOINING
WEST BENGAL-
NORTH ODISHA COASTS PERSISTS OVER THE SAME REGION AT 0300 UTC OF
TODAY 29TH
AUGUST 2026. THE ASSOCIATED CYCLONIC CIRCULATION EXTENDS UPTO 7.6 KM
ABOVE MEAN
SEA LEVEL.
IT IS LIKELY TO BECOME MORE MARKED AND MOVE WEST-NORTHWESTWARDS
ACROSS
NORTH ODISHA-GANGETIC WEST BENGAL DURING NEXT 48 HOURS.
PART-III AREA FORECAST:
AREA: ARB A1 (ARABIAN SEA)-EQUATOR TO 10 DEG N W OF 80 DEG E.
ARB A1-FORECAST VALID FROM 09 UTC OF 29 TH AUGUST 2026 TO 00 UTC OF
30 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SW/S-LY 10/25 KTS.
2) REST AREA: S/SW-LY 05/15 KTS BEC SW/W-LY 10/20 KTS
TO THE N OF 4 DEG N.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: 1) E OF 60 DEG E: WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 60 DEG E: VERY POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 00 UTC OF 30 TH AUGUST 2026 TO 00 UTC OF
31 ST AUGUST 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SW/S-LY 10/25 KTS.
2) E OF 60 DEG E TO 70 DEG E: SE/S-LY 05/10 KTS
BEC SW/W-LY 05/15 KTS TO THE N OF 5 DEG N.
3) REST AREA: NW/W-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: 1) E OF 60 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 60 DEG E: POOR.
2) REST AREA: MODERATE.
ARB A2-ARABIAN SEA: -23 DEG 45 MIN N 68 DEG E TO 00 DEG N 63 DEG E TO
CAPE GARDAFUI
TO N OF 10 DEG N. 55.
ARB A2-FORECAST VALID FROM 09 UTC OF 29 TH AUGUST 2026 TO 00 UTC OF
30 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 64 DEG E TO THE S OF 11 DEG N: SCATTERED RA/TS.
2) E OF 70 DEG E: SCATTERED RA/TS.
3) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 64 DEG E TO THE S OF 11 DEG N: MODERATE.
2) E OF 70 DEG E: MODERATE.
3) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 30 TH AUGUST 2026 TO 00 UTC OF
31 ST AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 64 DEG E TO THE S OF 20 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 64 DEG E TO THE S OF 20 DEG N: MODERATE.
2) REST AREA: GOOD.
BOB A3-BAY OF BENGAL: EQUATOR TO 10 DEG N BETWEEN E OF 80 DEG E WEST
OF 10
DEG N/98 DEG 30 MIN E TO 6 DEG N/95 DEG E THENCE S-WARDS TO EQUATOR.
BOB A3-FORECAST VALID FROM 09 UTC OF 29 TH AUGUST 2026 TO 00 UTC OF
30 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
BOB A3-FORECAST VALID FROM 00 UTC OF 30 TH AUGUST 2026 TO 00 UTC OF
31 ST AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/20 KTS.
II) WAVE HEIGHT: 2.0-3.5 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB: A4: BAY OF BENGAL N OF 10 DEG N E OF 80 DEG E.
BOB A4-FORECAST VALID FROM 09 UTC OF 29 TH AUGUST 2026 TO 00 UTC OF
30 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC CYCLONIC 05/15 KTS
AT 88 DEG E AND 21 DEG N.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A4-FORECAST VALID FROM 00 UTC OF 30 TH AUGUST 2026 TO 00 UTC OF
31 ST AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC CYCLONIC 05/15 KTS
AT 87 DEG E AND 22 DEG N.
II) WAVE HEIGHT: 2.0.-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
ADVISORY: PLEASE BE AWARE. WIND WAVE FORECASTS ARE AVERAGES. WIND
GUSTS
CAN BE 40 PER CENT STRONGER THAN THE FORECAST. MAXIMUM WAVE HEIGHT
CAN BE
TWICE THE FORECAST WAVE HEIGHT.
NEXT FORECAST WILL BE ISSUED AT 29/1700 UTC=