GMDSS BULLETIN I 170900
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 2345\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 17 TH APRIL 2025 TO 00 UTC OF 19 TH APRIL 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 17 TH APRIL 2025 TO 00 UTC OF 18 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: 1) E OF 68 DEG E: NW/W-LY 05/10 KTS BEC SW-LY 05/15 KTS TO
THE E OF 78 DEG E.
2) N OF 5 DEG N TO THE W OF 68 DEG E: ANTICYCLONIC 05/10
KTS.
3) REST AREA: NE/N-LY 05/10 KTS BEC NW-LY 05/10 KTS
TO THE S OF 2 DEG N.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: ISOLATED RA/TS.
IV) VISIBILITY: GOOD.
ARB A1-FORECAST VALID FROM 00 UTC OF 18 TH APRIL 2025 TO 00 UTC OF 19 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: NE/E-LY 05/10 KTS.
2) E OF 60 DEG E TO 70 DEG E: NE/N-LY 05/10 KTS
BEC NW-LY 05/10 KTS TO THE S OF 4 DEG N.
3) REST AREA: NW/W-LY 05/10 KTS BEC SW-LY 10/20 KTS
TO THE E OF 78 DEG E.
I) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) E OF 65 DEG E: ISOLATED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 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 17 TH APRIL 2025 TO 00 UTC OF 18 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 68 DEG E TO THE S OF 20 DEG N: ANTI-CYCLONIC 05/10 KTS.
2) REST AREA: SW/W-LY 10/20 KTS BEC NW-LY 10/15 KTS
TO THE E OF 68 DEG E.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: FAIR.
IV) VISIBILITY: GOOD
ARB A2-FORECAST VALID FROM 00 UTC OF 18 TH APRIL 2025 TO 00 UTC OF 19 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 68 DEG E TO THE S OF 20 DEG N: ANTI-CYCLONIC 05/10 KTS.
2) REST AREA: SW/W-LY 10/20 KTS BEC NW-LY 10/15 KTS
TO THE E OF 68 DEG E.
II) WAVE HEIGHT: 0.5-2.0 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 17 TH APRIL 2025 TO 00 UTC OF 18 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: 1) W OF 90 DEG E: SW/S-LY 05/15 KTS.
2) REST AREA: SW-LY 05/10 KTS BEC W/NW-LY 05/10 KTS
TO THE E OF 95 DEG E.
II) WAVE HEIGHT: 0.5-2.5 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A3-FORECAST VALID FROM 00 UTC OF 18 TH APRIL 2025 TO 00 UTC OF 19 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: SW-LY 05/10 KTS BEC W/NW-LY 05/10 KTS TO THE E OF 95 DEG E.
II) WAVE HEIGHT: 0.5-2.0 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 09 UTC OF 17 TH APRIL 2025 TO 00 UTC OF 18 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/20 KTS BEC W-LY 05/10 KTS TO THE E OF 90 DEG E.
II) WAVE HEIGHT: 0.5-1.5 MTR.
III) WEATHER: 1) E OF 85 DEG E: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 85 DEG E: MODERATE.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 00 UTC OF 18 TH APRIL 2025 TO 00 UTC OF 19 TH APRIL 2025.
I) WIND DIRECTION AND SPEED: S/SW-LY 10/20 KTS BEC W-LY 05/10 KTS TO THE E OF 90 DEG E.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) E OF 84 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 84 DEG E: 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 17/1700 UTC.