GMDSS BULLETIN NO-04 281800
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 28 TH SEPTEMBER 2026 TO 12 UTC OF 30 TH
SEPTEMBER 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC.
THE DEEP DEPRESSION OVER NORTH ANDAMAN SEA & ADJOINING MYANMAR
COAST MOVED
NORTH-NORTHWESTWARDS WITH A SPEED OF 10 KMPH DURING PAST 6 HOURS AND
LAY
CENTRED AT 1200 UTC OF TODAY, THE 28TH SEPTEMBER 2026 OVER THE SAME
REGION
CLOSE TO COAST NEAR LATITUDE 16.9 DEG N AND LONGITUDE 97.2 DEG E,
ABOUT 50 KM
SOUTH-SOUTHEAST OF KYAIKTO (MYANMAR), 60 KM NORTHWEST OF MAWLANYINE
(MYANMAR), 90 KM SOUTHEAST OF BAGO (MYANMAR), 110 KM EAST OF YANGON
(MYANMAR)
AND 630 KM NORTHEAST OF MAYABANDAR (ANDAMAN ISLANDS, INDIA). THE LAND
INTERACTION HAS ALREADY COMMENCED OVER IRRAWADDY DELTA REGION AND THE
DEEP
DEPRESSION IS VERY LIKELY TO CROSS MYANMAR COAST BETWEEN YANGON AND
KYAIKTO,
CLOSE TO KYAIKTO DURING NEXT 2-3 HOURS. AFTER THE LANDFALL, IT IS
LIKELY TO
CONTINUE TO MOVE FURTHER NORTH-NORTHWESTWARDS ACROSS COASTAL MYANMAR
AND
ADJOINING EASTCENTRAL & NORTHEAST BAY OF BENGAL AND SOUTHEAST
BANGLADESH
DURING NEXT
2 DAYS.
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 28 TH SEP 2026 TO 12 UTC OF 29
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 58 DEG E: SW/S-LY 10/20 KTS.
2) REST AREA: W/NW-LY 05/10 KTS BEC SW-LY 05/15 KTS
TO THE E OF 76 DEG E.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: 1) E OF 64 DEG E TO THE S OF 5 DEG N: WIDESPREAD RA/TS.
2) REST AREA: SCATTERED RA/TS.
IV) VISIBILITY: 1) E OF 64 DEG E TO THE S OF 5 DEG N: VERY POOR.
2) REST AREA: MODERATE.
ARB A1-FORECAST VALID FROM 12 UTC OF 29 TH SEP 2026 TO 12 UTC OF 30
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 60 DEG E: SE/S-LY 05/10 KTS.
2) E OF 60 DEG E TO THE N OF 5 DEG N: N/NW-LY 05/15 KTS.
3) REST AREA: SW/W-LY 05/10 KTS.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: SCATTERED RA/TS.
IV) VISIBILITY: 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 28 TH SEP 2026 TO 12 UTC OF 29
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 20 DEG N: SW-LY 05/15 KTS.
2) REST AREA: SW-LY 05/15 KTS BEC W/NW-LY 05/10 KTS
TO THE E OF 62 DEG E.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: ISOLATED RA/TS.
IV) VISIBILITY: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 29 TH SEP 2026 TO 12 UTC OF 30
TH SEP 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 68 DEG E: ANTI-CYCLONIC 05/10
KTS.
2) REST AREA: NW/N-LY 05/10 KTS.
II) WAVE HEIGHT: 1.0-2.0 MTR.
III) WEATHER: ISOLATED RA/TS.
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 18 UTC OF 28 TH SEP 2026 TO 12 UTC OF 29
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SE/S-LY 05/10 KTS BEC SW-LY 05/10 KTS
TO THE N OF 4 DEG N.
II) WAVE HEIGHT: 1.0-3.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 29 TH SEP 2026 TO 12 UTC OF 30
TH SEP 2026.
I) WIND DIRECTION AND SPEED: ANTI-CYCLONIC 05/10 KTS.
II) WAVE HEIGHT: 1.0-2.0 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 18 UTC OF 28 TH SEP 2026 TO 12 UTC OF 29
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS BEC CYCLONIC 25/30 KTS
AT 16.9 DEG N AND 97.2 DEG E.
II) WAVE HEIGHT: 4.0 -6.0 MTR.
III) WEATHER: 1) E OF 90 DEG E: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) E OF 90 DEG E: VERY POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 12 UTC OF 29 TH SEP 2026 TO 12 UTC OF 30
TH SEP 2026.
I) WIND DIRECTION AND SPEED: SW/W-LY 15/20 KTS.
II) WAVE HEIGHT: 2.5-4.0 MTR.
III) WEATHER: ISOLATED RA/TS.
IV) VISIBILITY: 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 29/0800 UTC.=