GMDSS BULLETIN II 041800
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 23O45N 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
30E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 18 UTC OF 04TH AUGUST 2026 TO 12 UTC OF 06TH AUGUST 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
THE UPPER AIR CYCLONIC CIRCULATION OVER WESTCENTRAL BAY OF BENGAL &
ADJOINING COASTAL ANDHRA PRADESH AT 4.5 KM ABOVE MEAN SEA LEVEL
PERSISTS.
PART-III AREA FORECAST:
AREA: ARB A1 (ARABIAN SEA)-EQUATOR TO 10 DEG N W OF 80 DEG E.
ARB A1-FORECAST VALID FROM 18 UTC OF 04TH AUGUST 2026 TO 12 UTC OF
05TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS BEC NW/W-LY 10/25 KTS
TO THE E OF
73 DEG E.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 67 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 67 DEG E: POOR.
2) REST AREA: GOOD.
ARB A1-FORECAST VALID FROM 12 UTC OF 05TH AUGUST 2026 TO 12 UTC OF
06TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/30 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 70 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 70 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 18 UTC OF 04TH AUGUST 2026 TO 12 UTC OF
05TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/25 KTS BEC W/NW-LY 15/20 KTS
TO
THE E OF 70 DEG E.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 68 DEG E TO THE S OF 20 DEG N: FAIRLY
WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 68 DEG E TO THE S OF 20 DEG N: POOR.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 05TH AUGUST 2026 TO 12 UTC OF
06TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/30 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 70 DEG E: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 70 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 18 UTC OF 04TH AUGUST 2026 TO 12 UTC OF
05TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: W/SW-LY 15/30 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 05TH AUGUST 2026 TO 12 UTC OF
06TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/30 KTS.
II) WAVE HEIGHT: 2.0-4.0 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 18 UTC OF 04TH AUGUST 2026 TO 12 UTC OF
05TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: 1) E OF 85 DEG E: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 85 DEG E: VERY POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 12 UTC OF 05TH AUGUST 2026 TO 12 UTC OF
06TH AUGUST 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS BEC CYCLONIC 10/15 KTS
AT 95 DEG E
AND 14 DEG N.
II) WAVE HEIGHT: 1.5-3.0 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 05/0800 UTC.=