GLOBAL MARITIME 151330 IST
DATE/TIME OF ISSUE: 15-10-2025/0800 UTC
GMDSS BULLETIN I 150900
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 2345\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 15 TH OCTOBER 2025 TO 00 UTC OF 17 TH OCTOBER 2025.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC:
THE UPPER AIR CYCLONIC CIRCULATION OVER WESTCENTRAL ARABIAN SEA EXTENDING
UPTO 1.5 KM ABOVE MEAN SEA LEVEL HAS BECOME LESS MARKED.
THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTHEAST ARABIAN SEA & ADJOINING
EQUATORIAL INDIAN OCEAN NOW LAY OVER SOUTHEAST ARABIAN SEA & ADJOINING
LAKSHADWEEP AREA AND EXTENDS UPTO 5.8 KM ABOVE MEAN SEA LEVEL TILTING
SOUTHWARD WITH HEIGHT. UNDER ITS INFLUENCE, A LOW PRESSURE AREA IS LIKELY TO
FORM OVER SOUTHEAST ARABIAN SEA & LAKSHADWEEP AREA OFF KERALA-KARNATAKA
COASTS AROUND 19TH OCTOBER, 2025.
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 15 TH OCTOBER 2025 TO 00 UTC OF 16 TH OCT 2025.
I) WIND DIRECTION AND SPEED: SW/S-LY 05/15 KTS BEC W/NW-LY 10/25 KTS
TO THE E OF 54 DEG E.
II) WAVE HEIGHT: 1.0-2.5 MTR.
III) WEATHER: 1) E OF 65 DEG E: WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 65 DEG E: VERY POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 00 UTC OF 16 TH OCTOBER 2025 TO 00 UTC OF 17 TH OCT 2025.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/15 KTS BEC NW/W-LY 10/25 KTS
TO THE E OF 53 DEG E.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: 1) E OF 58 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 58 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 15 TH OCTOBER 2025 TO 00 UTC OF 16 TH OCT 2025.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: ANTI-CYCLONIC 05/10 KTS.
2) REST AREA: N/NW-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) S OF 15 DEG N TO THE E OF 70 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 15 DEG N TO THE E OF 70 DEG E: POOR.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 16 TH OCTOBER 2025 TO 00 UTC OF 17 TH OCT 2025.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: ANTI-CYCLONIC 05/10 KTS.
2) REST AREA: N/NE-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) E OF 67 DEG E TO THE S OF 16 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 67 DEG E TO THE S OF 16 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 15 TH OCTOBER 2025 TO 00 UTC OF 16 TH OCT 2025.
I) WIND DIRECTION AND SPEED: SW-LY 10/25 KTS BEC S/SE-LY 05/10 KTS
TO THE N OF 5 DEG N.
II) WAVE HEIGHT: 1.5-3.5 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 00 UTC OF 16 TH OCTOBER 2025 TO 00 UTC OF 17 TH OCT 2025.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS BEC S/SE-LY 10/15 KTS
TO THE N OF 6 DEG N.
II) WAVE HEIGHT: 1.5-3.0 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 09 UTC OF 15 TH OCTOBER 2025 TO 00 UTC OF 16 TH OCT 2025.
I) WIND DIRECTION AND SPEED: 1) N OF 17 DEG N: NE/E-LY 05/15 KTS.
2) REST AREA: SE/E-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.5 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A4-FORECAST VALID FROM 00 UTC OF 16 TH OCTOBER 2025 TO 00 UTC OF 17 TH OCT 2025.
I) WIND DIRECTION AND SPEED: NE/E-LY 05/15 KTS BEC SE/E-LY 05/15 KTS TO THE
W OF 92 DEG E.
II) WAVE HEIGHT: 0.5-2.5 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 15/1700 UTC.
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