GMDSS BULLETIN I 120900
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'N 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'E NORTHWARDS COVERING ENTIRE BAY OF BENGAL.
VALID FROM 09 UTC OF 12 TH NOVEMBER 2026 TO 00 UTC OF 14 TH NOVEMBER
2026.
PART-I STORM WARNING: NIL
PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC:
THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTHEAST ARABIAN SEA &
ADJOINING
SOUTH LAKSHADWEEP AREA PERSISTS AND NOW SEEN AT 1.5 KM ABOVE MEAN SEA
LEVEL.
THE UPPER AIR CYCLONIC CIRCULATION OVER GULF OF MANNAR &
NEIGHBOURHOOD AT 0.9
KM ABOVE MEAN SEA LEVEL PERSISTS.
THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTH ANDAMAN SEA &
NEIGHBOURHOOD
PERSISTED OVER THE SAME REGION AT 0300 UTC OF TODAY, 12 TH NOVEMBER
2026 AND
EXTENDS UPTO MIDDLE TROPOSPHERIC LEVEL. UNDER ITS INFLUENCE, A
LOW-PRESSURE
AREA IS LIKELY TO FORM OVER SOUTHEAST BAY OF BENGAL AROUND 13 TH
NOVEMBER 2026. IT
IS LIKELY TO MOVE NORTHWESTWARDS AND BECOME WELL MARKED LOW-PRESSURE
AREA
AROUND 14 TH NOVEMBER AND DEPRESSION AROUND 15 TH NOVEMBER OVER THE
SAME
REGION.
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 12 TH NOV 2026 TO 00 UTC OF 13
TH NOV 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 10/20 KTS BEC NW/W-LY 05/10 KTS
TO THE S OF 5 DEG N.
II) WAVE HEIGHT: 0.5-2.5 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 00 UTC OF 13 TH NOV 2026 TO 00 UTC OF 14
TH NOV 2026.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS BEC NW/W-LY 05/10 KTS
TO THE S OF 5 DEG N.
II) WAVE HEIGHT: 0.5-2.5 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 09 UTC OF 12 TH NOV 2026 TO 00 UTC OF 13
TH NOV 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: ANTI-CYCLONIC 05/10
KTS.
2) REST AREA: NE/N-LY 10/20 KTS.
II) WAVE HEIGHT: 0.5-2.5 MTR.
III) WEATHER: 1) S OF 12 DEG N: ISOLATED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 12 DEG N: GOOD.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 13 TH NOV 2026 TO 00 UTC OF 14
TH NOV 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: ANTI-CYCLONIC 05/10
KTS.
2) REST AREA: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 0.5-2.5 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 12 TH NOV 2026 TO 00 UTC OF 13
TH NOV 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 5 DEG N: E/SE-LY 10/15 KTS BEC
CYCLONIC 05/10 KTS
AT 88 DEG E AND 7 DEG N.
2) REST AREA: W/SW-LY 10/20 KTS.
II) WAVE HEIGHT: 0.5-3.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 00 UTC OF 13 TH NOV 2026 TO 00 UTC OF 14
TH NOV 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 5 DEG N: CYCLONIC 05/10 KTS AT
86 DEG E AND
7 DEG N.
2) REST AREA: SW-LY 10/20 KTS.
II) WAVE HEIGHT: 0.5-3.0 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 09 UTC OF 12 TH NOV 2026 TO 00 UTC OF 13
TH NOV 2026.
I) WIND DIRECTION AND SPEED: E/SE-LY 10/15 KTS BEC E/NE-LY 10/15 KTS
TO THE W OF 88 DEG E.
II) WAVE HEIGHT: 0.5-2.5 MTR.
III) WEATHER: 1) S OF 19 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 19 DEG N: POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 00 UTC OF 13 TH NOV 2026 TO 00 UTC OF 14
TH NOV 2026.
I) WIND DIRECTION AND SPEED: E/NE-LY 10/20 KTS.
II) WAVE HEIGHT: 0.5-2.5 MTR.
III) WEATHER: 1) S OF 18 DEG N: FAIRLY WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 18 DEG N: 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 12/1700 UTC.=