GMDSS BULLETIN II 201800
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'N 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'E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 18 UTC OF 20TH NOVEMBER 2025 TO 12 UTC OF 22ND NOVEMBER
2025.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
THE LOW-PRESSURE AREA OVER SOUTHEAST ARABIAN SEA & ADJOINING
LAKSHADWEEP AREA HAS BECOME LESS MARKED. HOWEVER, THE ASSOCIATED
CYCLONIC CIRCULATION LAY OVER THE SAME REGION AND EXTENDS UPTO 3.1 KM
ABOVE MEAN SEA LEVEL.
THE UPPER AIR CYCLONIC CIRCULATION OVER CENTRAL PARTS OF STRAIT OF
MALACCA EXTENDING UPTO 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS. UNDER
ITS INFLUENCE, A LOW PRESSURE AREA IS LIKELY TO FORM OVER SOUTHEAST
BAY OF BENGAL AROUND 22ND NOVEMBER 2025. THEREAFTER, IT IS VERY
LIKELY TO MOVE WEST-NORTHWESTWARDS AND INTENSIFY INTO DEPRESSION OVER
CENTRAL PARTS OF SOUTH BAY OF BENGAL AROUND 24TH NOVEMBER 2025.
THEREAFTER, IT WILL VERY LIKELY TO CONTINUE TO MOVE
WEST-NORTHWESTWARDS AND INTENSIFY FURTHER OVER SOUTHWEST BAY OF
BENGAL DURING SUBSEQUENT 48 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 18 UTC OF 20TH NOVEMBER 2025 TO 12 UTC OF
21ST NOV 2025.
I) WIND DIRECTION AND SPEED: 1) N OF 5 DEG N TO THE E OF 60 DEG E:
CYCLONIC 05/10 KTS
AT 67 DEG E AND 7 DEG N.
2) N OF 5 DEG N TO THE W OF 60 DEG E: NE-LY 10/20 KTS.
3) REST AREA: NW-LY 05/10 KTS.
II) WAVE HEIGHT: 1.5-3.0 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 A1-FORECAST VALID FROM 12 UTC OF 21ST NOVEMBER 2025 TO 12 UTC OF
22ND NOV 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: NE-LY 10/20 KTS.
2) E OF 60 DEG E TO THE W OF 70 DEG E: CYCLONIC 05/10 KTS
AT 64 DEG E AND 7 DEG N.
3) REST AREA: NW/W-LY 05/10 KTS.
II) WAVE HEIGHT: 1.5-2.5 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 20TH NOVEMBER 2025 TO 12 UTC OF
21ST NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0-2.5 MTR.
III) WEATHER: 1) E OF 64 DEG E TO THE S OF 13 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 64 DEG E TO THE S OF 13 DEG N: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 21ST NOVEMBER 2025 TO 12 UTC OF
22ND NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: 1) E OF 60 DEG E TO THE S OF 12 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 12 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 18 UTC OF 20TH NOVEMBER 2025 TO 12 UTC OF
21ST NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS BEC CYCLONIC 05/15 KTS
AT 87 DEG E AND 6 DEG N.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 21ST NOVEMBER 2025 TO 12 UTC OF
22ND NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/25 KTS BEC CYCLONIC 10/20 KTS
AT 92 DEG E AND 7 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 18 UTC OF 20TH NOVEMBER 2025 TO 12 UTC OF
21ST NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) W OF 90 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) W OF 90 DEG E: POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 12 UTC OF 21ST NOVEMBER 2025 TO 12 UTC OF
22ND NOV 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: 1) W OF 90 DEG E TO THE S OF 18 DEG N: FAIRLY
WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) W OF 90 DEG E TO THE S OF 18 DEG N: 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 21/0800 UTC.=