GMDSS BULLETIN I 250900
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
30\U2019E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 09 UTC OF 25 TH SEPTEMBER 2026 TO 00 UTC OF 27 TH
SEPTEMBER 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC: SEASONAL WEATHER.
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 25 TH SEP 2026 TO 00 UTC OF 26
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 62 DEG E: SW/S-LY 10/25 KTS.
2) E OF 62 DEG E TO THE N OF 5 DEG N: NW/W-LY 05/15 KTS
BEC W/SW-LY 10/20 KTS TO THE E OF 76 DEG E.
3) REST AREA: SW/S-LY 05/15 KTS.
II) WAVE HEIGHT: 1.0-3.5 MTR.
III) WEATHER: 1) E OF 56 DEG E: WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 56 DEG E: VERY POOR.
2) REST AREA: GOOD.
ARB A1-FORECAST VALID FROM 00 UTC OF 26 TH SEP 2026 TO 00 UTC OF 27
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SW/S-LY 10/25 KTS.
2) E OF 60 DEG E TO 70 DEG E: ANTICYCLONIC 05/10 KTS.
3) REST AREA: NW/W-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0-3.0 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 25 TH SEP 2026 TO 00 UTC OF 26
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW-LY 10/20 KTS BEC W/NW-LY 10/15 KTS
TO THE E OF 67 DEG E.
II) WAVE HEIGHT: 1.0-3.0 MTR.
III) WEATHER: 1) S OF 18 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 18 DEG N: POOR.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 26 TH SEP 2026 TO 00 UTC OF 27
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW-LY 10/20 KTS BEC W/NW-LY 10/15 KTS
TO THE E OF 69 DEG E.
II) WAVE HEIGHT: 1.0-3.0 MTR.
III) WEATHER: 1) E OF 60 DEG E TO THE S OF 17 DEG N: SCATTERED RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 17 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 25 TH SEP 2026 TO 00 UTC OF 26
TH SEP 2026.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
BOB A3-FORECAST VALID FROM 00 UTC OF 26 TH SEP 2026 TO 00 UTC OF 27
TH SEP 2026.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/20 KTS.
II) WAVE HEIGHT: 1.0-3.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB: A4: BAY OF BENGAL N OF 10 DEG N E OF 80 DEG E.
BOB A4-FORECAST VALID FROM 09 UTC OF 25 TH SEP 2026 TO 00 UTC OF 26
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 15/25 KTS BEC SE-LY 15/25 KTS
TO THE N OF 19 DEG N.
II) WAVE HEIGHT: 1.5-4.5 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A4-FORECAST VALID FROM 00 UTC OF 26 TH SEP 2026 TO 00 UTC OF 27
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/20 KTS BEC S/SE-LY 10/20 KTS
TO THE N OF 21 DEG N.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
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 25/1700 UTC.=