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\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 20 TH SEPTEMBER 2026 TO 12 UTC OF 22 ND
SEPTEMBER 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0900 UTC:
THE LOW PRESSURE AREA OVER EASTCENTRAL BAY OF BENGAL AND ADJOINING
NORTH
ANDAMAN SEA PERSISTED OVER THE SAME REGION AT 0900 UTC OF TODAY, THE
20TH
SEPTEMBER, 2026. IT IS VERY LIKELY TO MOVE WESTNORTHWESTWARDS AND
INTENSIFY
GRADUALLY INTO A DEPRESSION OVER EASTCENTRAL BAY OF BENGAL ON 21ST
AND INTO A
DEEP DEPRESSION OVER WESTCENTRAL BAY OF BENGAL ON 22ND SEPTEMBER.
CONTINUING
TO MOVE WESTNORTHWESTWARDS IT IS VERY LIKELY TO REACH WESTCENTRAL AND
ADJOINING NORTHWEST BAY OF BENGAL NEAR NORTH ANDHRA PRADESH - SOUTH
ODISHA
COASTS AROUND 23RD SEPTEMBER MORNING.
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 20 TH SEP 2026 TO 12 UTC OF 21
ST SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: S/SW-LY 10/20 KTS.
2) E OF 60 DEG E TO THE N OF 5 DEG N: NW/W-LY 05/10 KTS
BEC W/SW-LY 10/20 KTS TO THE E OF 75 DEG E.
3) REST AREA: S/SW-LY 05/15 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) E OF 62 DEG E: WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 62 DEG E: VERY POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 12 UTC OF 21 ST SEP 2026 TO 12 UTC OF 22
ND SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: S/SW-LY 10/20 KTS.
2) E OF 60 DEG E TO THE N OF 5 DEG N: NW/W-LY 05/10 KTS
BEC W/SW-LY 10/20 KTS TO THE E OF 74 DEG E.
3) REST AREA: S/SW-LY 05/15 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 20 TH SEP 2026 TO 12 UTC OF 21
ST SEP 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/15 KTS BEC NW-LY 05/10 KTS
TO THE E OF 62 DEG E.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) S OF 15 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 15 DEG N: POOR.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 21 ST SEP 2026 TO 12 UTC OF 22
ND SEP 2026.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/15 KTS BEC NW-LY 05/10 KTS
TO THE E OF 63 DEG E.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
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 20 TH SEP 2026 TO 12 UTC OF 21
ST SEP 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 2.5-4.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 21 ST SEP 2026 TO 12 UTC OF 22
ND SEP 2026.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/25 KTS.
II) WAVE HEIGHT: 2.5-4.0 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 20 TH SEP 2026 TO 12 UTC OF 21
ST SEP 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS BEC CYCLONIC 15/20 KTS
AT 89 DEG E AND 16 DEG N.
II) WAVE HEIGHT: 2.5-4.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A4-FORECAST VALID FROM 12 UTC OF 21 ST SEP 2026 TO 12 UTC OF 22
ND SEP 2026.
I) WIND DIRECTION AND SPEED: SW-LY 15/20 KTS BEC CYCLONIC 15/25 KTS
AT 88 DEG E AND 17 DEG N.
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 21/0800 UTC=