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 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 09 UTC OF 25 TH DECEMBER 2025 TO 00 UTC OF 27 TH DECEMBER
2025.
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 DECEMBER 2025 TO 00 UTC OF
26 TH DEC 2025.
I) WIND DIRECTION AND SPEED: 1) E OF 60 DEG E: NE-LY 10/25 KTS BEC
CYCLONIC 05/10 KTS
AT 62 DEG E AND 03 DEG N.
2) REST AREA: NE/N-LY 15/20 KTS.
II) WAVE HEIGHT: 1.5-3.5 MTR.
III) WEATHER: 1) S OF 7 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 7 DEG N: POOR.
2) REST AREA: GOOD.
ARB A1-FORECAST VALID FROM 00 UTC OF 26 TH DECEMBER 2025 TO 00 UTC OF
27 TH DEC 2025.
I) WIND DIRECTION AND SPEED: 1) E OF 60 DEG E: NE/E-LY 10/25 KTS.
2) REST AREA: NE/N-LY 15/20 KTS.
II) WAVE HEIGHT: 1.5-3.5 MTR.
III) WEATHER: 1) S OF 7 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 7 DEG N: 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 DECEMBER 2025 TO 00 UTC OF
26 TH DEC 2025.
I) WIND DIRECTION AND SPEED: NE-LY 05/15 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: FAIR.
IV) VISIBILITY: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 26 TH DECEMBER 2025 TO 00 UTC OF
27 TH DEC 2025.
I) WIND DIRECTION AND SPEED: NE-LY 05/15 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: FAIR.
IV) VISIBILITY: 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 DECEMBER 2025 TO 00 UTC OF
26 TH DEC 2025.
I) WIND DIRECTION AND SPEED: NE/N-LY 10/20 KTS.
II) WAVE HEIGHT: 1.0\U20132.5 MTR.
III) WEATHER: 1) S OF 6 DEG N: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 6 DEG N: VERY POOR.
2) REST AREA: GOOD.
BOB A3-FORECAST VALID FROM 00 UTC OF 26 TH DECEMBER 2025 TO 00 UTC OF
27 TH DEC 2025.
I) WIND DIRECTION AND SPEED: NE/N-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0\U20132.0 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 DECEMBER 2025 TO 00 UTC OF
26 TH DEC 2025.
I) WIND DIRECTION AND SPEED: E/NE-LY 10/15 KTS.
II) WAVE HEIGHT: 0.5\U20132.0 MTR.
III) WEATHER: 1) S OF 15 DEG N: ISOLATED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 15 DEG N: GOOD.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 00 UTC OF 26 TH DECEMBER 2025 TO 00 UTC OF
27 TH DEC 2025.
I) WIND DIRECTION AND SPEED: N/NE-LY 10/15 KTS.
II) WAVE HEIGHT: 0.5\U20132.0 MTR.
III) WEATHER: 1) S OF 15 DEG N: ISOLATED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 15 DEG N: GOOD.
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 25/1700 UTC.=