GMDSS BULLETIN II 101800
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
30E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 18 UTC OF 10TH MAY 2026 TO 12 UTC OF 12TH MAY 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
THE UPPER AIR CYCLONIC CIRCULATION OVER GULF OF MANNAR AND ADJOINING
SRI LANKA EXTENDING UPTO 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS. UNDER
ITS INFLUENCE A LOW PRESSURE AREA IS LIKELY TO FORM OVER SOUTHWEST
BAY OF BENGAL DURING THE NEXT 48 HOURS.
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 10TH MAY 2026 TO 12 UTC OF 11TH
MAY 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: NE/N-LY 05/10 KTS BEC
N/NW-LY 05/10 KTS
TO THE S OF 05 DEG N.
2) REST AREA: N/NW-LY 05/10 KTS BEC NW/W-LY 10/20 KTS
TO THE E OF 72 DEG E.
II) WAVE HEIGHT: 1.0-2.5 MTR.
III) WEATHER: 1) E OF 60 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 60 DEG E: POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 12 UTC OF 11TH MAY 2026 TO 12 UTC OF 12TH
MAY 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: W/SW-LY 05/15 KTS BEC
N/NW-LY 05/10 KTS
TO THE E OF 52 DEG E.
2) REST AREA: N/NW-LY 05/10 KTS BEC NW/W-LY 10/20 KTS
TO THE E OF 70 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 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 10TH MAY 2026 TO 12 UTC OF 11TH
MAY 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: SW/W-LY 10/20 KTS BEC
NW-LY 10/15 KTS TO THE E OF 65 DEG E.
2) E OF 62 DEG E TO THE S OF 20 DEG N: N/NW-LY 10/20 KTS
3) REST AREA: ANTI-CYCLONIC 05/10 KTS.
II) WAVE HEIGHT: 0.5-1.5 MTR.
III) WEATHER: 1) E OF 73 DEG E TO THE S OF 13 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 73 DEG E TO THE S OF 13 DEG N: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 11TH MAY 2026 TO 12 UTC OF 12TH
MAY 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: SW/W-LY 10/20 KTS.
2) E OF 60 DEG E TO THE S OF 20 DEG N: NW-LY 10/20 KTS
3) REST AREA: ANTI-CYCLONIC 05/10 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) E OF 74 DEG E TO THE S OF 14 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 74 DEG E TO THE S OF 14 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 18 UTC OF 10TH MAY 2026 TO 12 UTC OF 11TH
MAY 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/20 KTS BEC CYCLONIC 05/10 KTS
AT 82 DEG E
AND 08 DEG N.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) W OF 94 DEG E: WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) W OF 94 DEG E: VERY POOR.
2) REST AREA: MODERATE.
BOB A3-FORECAST VALID FROM 12 UTC OF 11TH MAY 2026 TO 12 UTC OF 12TH
MAY 2026.
I) WIND DIRECTION AND SPEED: W/SW-LY 10/20 KTS BEC CYCLONIC 05/10 KTS
AT 83 DEG E
AND 09 DEG N.
II) WAVE HEIGHT: 1.5-3.0 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 10TH MAY 2026 TO 12 UTC OF 11TH
MAY 2026.
I) WIND DIRECTION AND SPEED: E/SE-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-1.5 MTR
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A4-FORECAST VALID FROM 12 UTC OF 11TH MAY 2026 TO 12 UTC OF 12TH
MAY 2026.
I) WIND DIRECTION AND SPEED: SE/E-LY 05/15 KTS.
II) WAVE HEIGHT: 1.0-2.0 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 11/0800 UTC.
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ISSUED BY INDIA METEOROLOGICAL DEPARTMENT=