GLOBAL MARITIME 272230 IST
DATE/TIME OF ISSUE: 27-07-2026/1700 UTC
GMDSS BULLETIN NO-05 271800
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 18 UTC OF 27TH JULY 2026 TO 12 UTC OF 29TH JULY 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
DEEP DEPRESSION OVER NORTHWEST BAY OF BENGAL CLOSE TO WEST BENGAL
COAST.
THE DEEP DEPRESSION OVER NORTHWEST BAY OF BENGAL AND ADJOINING AREAS
OF WEST BENGAL-NORTH ODISHA COASTS MOVED SLOWLY WEST-NORTHWESTWARDS
WITH THE SPEED OF 7 KMPH DURING PAST 6 HOURS AND LAY CENTRED AT 1200
UTC OF TODAY, THE 27TH JULY 2026, OVER NORTHWEST BAY OF BENGAL CLOSE
TO WEST BENGAL COAST NEAR LATITUDE 21.6 DEG N AND LONGITUDE 87.7 DEG
E, ABOUT 20 KM EAST OF DIGHA (WEST BENGAL), 20 KM SOUTH-SOUTHWEST OF
CONTAI, 40 KM WEST OF SAGAR ISLAND (WEST BENGAL), 60 KM SOUTHWEST OF
HALDIA (WEST BENGAL), 80 KM EAST OF BALASORE (ODISHA) AND 120 KM
SOUTHWEST OF CANNING (WEST BENGAL).
IT IS VERY LIKELY TO MOVE NEARLY WEST-NORTHWESTWARDS AND CROSS WEST
BENGAL-NORTH ODISHA COASTS CLOSE TO EAST OF DIGHA AND WEST OF HALDIA
BY EARLY MORNING OF TOMORROW, THE 28TH JULY 2026.
THE UPPER AIR CYCLONIC CIRCULATION OVER EASTCENTRAL ARABIAN SEA AND
ADJOINING KONKAN COAST AT 5.8 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 27TH JULY 2026 TO 12 UTC OF 28TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
ARB A1-FORECAST VALID FROM 12 UTC OF 28TH JULY 2026 TO 12 UTC OF 29TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
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 27TH JULY 2026 TO 12 UTC OF 28TH
JULY 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 TO THE S OF 22 DEG N: FAIRLY
WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 70 DEG E TO THE S OF 22 DEG N: POOR.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 28TH JULY 2026 TO 12 UTC OF 29TH
JULY 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 72 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 72 DEG E: 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 18 UTC OF 27TH JULY 2026 TO 12 UTC OF 28TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 28TH JULY 2026 TO 12 UTC OF 29TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.0 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 18 UTC OF 27TH JULY 2026 TO 12 UTC OF 28TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC CYCLONIC 20/30 KTS
AT 87.7 DEG E
AND 21.6 DEG N.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 84 DEG E: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 84 DEG E: VERY POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 12 UTC OF 28TH JULY 2026 TO 12 UTC OF 29TH
JULY 2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC S/SE-LY 10/20 KTS
TO THE N OF 22 DEG N.
II) WAVE HEIGHT: 2.0-4.0 MTR.
III) WEATHER: 1) E OF 83 DEG E: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 83 DEG E: VERY POOR.
2) REST AREA: GOOD.
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 28/0800 UTC.=