GLOBAL MARITIME 311330 IST
DATE/TIME OF ISSUE: 31-08-2026/0800 UTC
GMDSS BULLETIN I 310900
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 31 ST AUGUST 2026 TO 00 UTC OF 02 ND SEPTEMBER
2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC:
THE WELL-MARKED LOW PRESSURE AREA OVER GANGETIC WEST BENGAL AND
ADJOINING
AREAS OF NORTH COASTAL ODISHA & NORTHWEST BAY OF BENGAL PERSISTED
OVER THE
SAME REGION AT 0300 UTC OF TODAY, THE 31ST AUGUST, 2026. THE
ASSOCIATED CYCLONIC
CIRCULATION EXTENDS UPTO 7.6 KM ABOVE MEAN SEA LEVEL TILTING
SOUTHWEST WITH
HEIGHT. IT IS LIKELY TO MOVE WEST-NORTHWESTWARDS ACROSS NORTH
ODISHA-GANGETIC
WEST BENGAL DURING NEXT 24 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 31 ST AUGUST 2026 TO 00 UTC OF
01 ST SEPTEMBER
2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SW/S-LY 10/25 KTS.
2) N OF 05 DEG N: SW/W-LY 10/15 KTS BEC W/NW-LY 10/20 KTS
TO THE E OF 71 DEG E.
3) REST AREA: SE/S-LY 05/10 KTS.
II) WAVE HEIGHT: 1.5-4.5 MTR.
III) WEATHER: 1) E OF 68 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 68 DEG E: POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 00 UTC OF 01 ST SEPTEMBER 2026 TO 00 UTC
OF 02 ND
SEPTEMBER 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SW/S-LY 10/25 KTS.
2) W OF 70 DEG E: SE/S-LY 10/15 KTS BEC S/SW-LY 10/15 KTS
TO THE N OF 05 DEG N.
3) REST AREA: SW/W-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: 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 31 ST AUGUST 2026 TO 00 UTC OF
01 ST SEPTEMBER
2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/25 KTS BEC W/NW-LY 10/15 KTS
TO THE E OF
72 DEG E
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 64 DEG E: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 64 DEG E: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 01 ST SEPTEMBER 2026 TO 00 UTC
OF 02 ND
SEPTEMBER 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 65 DEG E: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 65 DEG E: 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 31 ST AUGUST 2026 TO 00 UTC OF
01 ST SEPTEMBER
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 A3-FORECAST VALID FROM 00 UTC OF 01 ST SEPTEMBER 2026 TO 00 UTC
OF 02 ND
SEPTEMBER 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/20 KTS.
II) WAVE HEIGHT: 2.0-3.5 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB: A4: BAY OF BENGAL N OF 10 DEG N E OF 80 DEG E.
BOB A4-FORECAST VALID FROM 09 UTC OF 31 ST AUGUST 2026 TO 00 UTC OF
01 ST SEPTEMBER
2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC S/SE-LY 10/20 KTS TO
THE N OF 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 01 ST SEPTEMBER 2026 TO 00 UTC
OF 02 ND
SEPTEMBER 2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC S/SE-LY 05/15 KTS TO
THE N OF 21 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 31/1700 UTC.=