WTIN01 DEMS 030530
GLOBAL MARITIME 031030 IST
DATE/TIME OF ISSUE: 03-12-2025/0500 UTC
SPL GMDSS BULLETIN NO-20 030500
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 05 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF 04 TH DECEMBER
2025.
PART-I STORM WARNING:
SUBJECT: DEPRESSION (REMNANT OF CYCLONIC STORM DITWAH) WEAKENED INTO
A WELL-
MARKED LOW PRESSURE AREA OVER NORTH TAMIL NADU-PUDUCHERRY COASTS AND
NEIGHBOURHOOD
THE DEPRESSION (REMNANT OF CYCLONIC STORM DITWAH) OVER SOUTHWEST BAY
OF
BENGAL AND ADJOINING NORTH TAMIL NADU- PUDUCHERRY COASTS MOVED SLOWLY
SOUTHWESTWARDS AND WEAKENED INTO A WELL MARKED LOW PRESSURE AREA OVER
NORTH TAMIL NADU-PUDUCHERRY COASTS AND NEIGHBOURHOOD AT 0000 UTC OF
TODAY,
THE 03RD DECEMBER 2025.
IT IS VERY LIKELY TO CONTINUE TO MOVE SOUTHWESTWARDS SLOWLY ACROSS
NORTH
COASTAL TAMIL NADU AND PUDUCHERRY AND WEAKEN FURTHER INTO A
LOW-PRESSURE
AREA DURING NEXT 24 HOURS.
PART-II SYNOPTIC WEATHER SYSTEM AT 0000 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 05 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
03 RD DEC 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: NE-LY 15/20 KTS.

2) E OF 60 DEG E TO THE S OF 5 DEG N: SW/W-LY 10/15 KTS.
3) REST AREA: NE/N-LY 10/15 KTS BEC NW-LY 05/10 KTS
TO THE E OF 72 DEG E.

II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: 1) E OF 63 DEG E: FAIRLY WIDESPREAD RA/TS.

2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 63 DEG E: POOR.
2) REST AREA: MODERATE.

ARB A1-FORECAST VALID FROM 12 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
04 TH DECE
2025.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: NE/N-LY 10/15 KTS.

2) REST AREA: NE/N-LY 05/10 KTS BEC NW/W-LY 05/10 KTS
TO THE S OF 5 DEG N.

II) WAVE HEIGHT: 1.5-3.0 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 05 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
03 RD DEC 2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0-2.5 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.

ARB A2-FORECAST VALID FROM 12 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
04 TH DECE
2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/15 KTS.
II) WAVE HEIGHT: 1.0-2.5 MTR.
III) WEATHER: 1) S OF 13 DEG N: ISOLATED RA/TS.

2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 13 DEG N: GOOD.
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 05 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
03 RD DEC 2025.
I) WIND DIRECTION AND SPEED: NE/E-LY 05/10 KTS BEC SE-LY 05/10 KTS

TO THE W OF 90 DEG E.

II) WAVE HEIGHT: 1.5\U20133.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
04 TH DECE
2025.
I) WIND DIRECTION AND SPEED: NE/N-LY 05/15 KTS.
II) WAVE HEIGHT: 1.5\U20132.5 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 05 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
03 RD DEC 2025.
I) WIND DIRECTION AND SPEED: NE/E-LY 10/15 KTS BEC CYCLONIC 20/25 KTS
AT 79.7 DEG E

AND 11.9 DEG N.

II) WAVE HEIGHT: 2.5\U20134.0 MTR.
III) WEATHER: 1) W OF 88 DEG E TO THE S OF 17 DEG N: WIDESPREAD
RA/TS.

2) REST AREA: FAIR.

IV) VISIBILITY: 1) W OF 88 DEG E TO THE S OF 17 DEG N: VERY POOR.

2) REST AREA: GOOD.

BOB A4-FORECAST VALID FROM 12 UTC OF 03 RD DECEMBER 2025 TO 12 UTC OF
04 TH DECE
2025.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5\U20132.5 MTR.
III) WEATHER: 1) W OF 87 DEG E TO THE S OF 15 DEG N: WIDESPREAD
RA/TS.

2) REST AREA: FAIR.

IV) VISIBILITY: 1) W OF 87 DEG E TO THE S OF 15 DEG N: VERY 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 03/1700 UTC.=