GLOBAL MARITIME 231330 IST
DATE/TIME OF ISSUE: 23-08-2026/0800 UTC
GMDSS BULLETIN I 230900
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 23 RD AUGUST 2026 TO 00 UTC OF 25 TH AUGUST
2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC:
A LOW-PRESSURE AREA OVER NORTHWEST BAY OF BENGAL & NEIGHBOURHOOD
PERSISTED
OVER THE SAME REGION AT 0830 HRS IST OF TODAY, THE 23RD AUGUST 2026.
THE
ASSOCIATED CYCLONIC CIRCULATION EXTENDS UPTO 7.6 KM ABOVE MEAN SEA
LEVEL
TILTING SOUTHWESTWARDS WITH HEIGHT.
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 23 RD AUGUST 2026 TO 00 UTC OF
24 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.5 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
ARB A1-FORECAST VALID FROM 00 UTC OF 24 TH AUGUST 2026 TO 00 UTC OF
25 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.5 MTR.
III) WEATHER: 1) E OF 60 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 60 DEG E: POOR.
2) REST AREA: GOOD.
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 23 RD AUGUST 2026 TO 00 UTC OF
24 TH AUGUST
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 70 DEG E TO THE S OF 20 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 70 DEG E TO THE S OF 20 DEG N: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 24 TH AUGUST 2026 TO 00 UTC OF
25 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/25 KTS.
II) WAVE HEIGHT: 2.0-3.5 MTR.
III) WEATHER: 1) E OF 70 DEG E TO THE S OF 20 DEG N: FAIRLY SPREAD
RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 70 DEG E TO THE S OF 20 DEG N: POOR.
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 23 RD AUGUST 2026 TO 00 UTC OF
24 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-3.5 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
BOB A3-FORECAST VALID FROM 00 UTC OF 24 TH AUGUST 2026 TO 00 UTC OF
25 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-3.5 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
BOB: A4: BAY OF BENGAL N OF 10 DEG N E OF 80 DEG E.
BOB A4-FORECAST VALID FROM 09 UTC OF 23 RD AUGUST 2026 TO 00 UTC OF
24 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/25 KTS.
II) WAVE HEIGHT: 2.5-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A4-FORECAST VALID FROM 00 UTC OF 24 TH AUGUST 2026 TO 00 UTC OF
25 TH AUGUST
2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 15/20 KTS.
II) WAVE HEIGHT: 2.5.-4.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY 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 23/1700 UTC.=