GMDSS BULLETIN II 231800
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 18 UTC OF 23 RD MAY 2026 TO 12 UTC OF 25 TH MAY 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTHEAST ADJOINING CENTRAL
BAY OF
BENGAL BETWEEN 3.1 & 5.8 KM ABOVE MEAN SEA LEVEL TILTING
SOUTHWESTWARDS WITH
HEIGHT PERSISTS.
THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTHWEST ARABIAN SEA BETWEEN
3.1 & 5.8
KM ABOVE MEAN SEA LEVEL PERSISTS.
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 23 RD MAY 2026 TO 12 UTC OF 24
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.0 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 A1-FORECAST VALID FROM 12 UTC OF 24 TH MAY 2026 TO 12 UTC OF 25
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/25 KTS.
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 18 UTC OF 23 RD MAY 2026 TO 12 UTC OF 24
TH MAY 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 15 DEG N: SW/W-LY 10/15 KTS.
2) REST AREA: SW-LY 10/15 KTS BEC CYCLONIC 05/10 KTA AT 11
DEG N AND 67 DEG E.
II) WAVE HEIGHT: 0.5-1.5 MTR.
III) WEATHER: 1) E OF 55 DEG E TO THE S OF 20 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 55 DEG E TO THE S OF 20 DEG N: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 24 TH MAY 2026 TO 12 UTC OF 25
TH MAY 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 17 DEG N: SW-LY 15/20 KTS.
2) REST AREA: SW/W-LY 10/15 KTS BEC CYCLONIC 05/10 KTA
AT 13 DEG N AND 66 DEG E.
II) WAVE HEIGHT: 1.5-2.5 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.
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 23 RD MAY 2026 TO 12 UTC OF 24
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: MODERATE.
BOB A3-FORECAST VALID FROM 00 UTC OF 24 TH MAY 2026 TO 00 UTC OF 25
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.0 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 18 UTC OF 23 RD MAY 2026 TO 12 UTC OF 24
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR
III) WEATHER: 1) E OF 87 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 87 DEG E: POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 12 UTC OF 24 TH MAY 2026 TO 12 UTC OF 25
TH MAY 2026.
I) WIND DIRECTION AND SPEED: SW/S-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-3.0 MTR.
III) WEATHER: 1) E OF 83 DEG E: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 83 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 24/0800 UTC=