GLOBAL MARITIME 312230 IST
DATE/TIME OF ISSUE: 31-10-2026/1700 UTC
SPECIAL GMDSS BULLETIN NO-1: 311800
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 31 ST OCTOBER 2026 TO 12 UTC OF 02 ND NOVEMBER
2026.
PART-I STORM WARNING: NIL
PART-II SYNOPTIC WEATHER SYSTEM AT 1200 UTC:
THE DEPRESSION OVER SOUTHEAST BAY OF BENGAL AND ADJOINING AREAS OF
ANDAMAN &
NICOBAR ISLANDS AND ANDAMAN SEA MOVED WEST-NORTHWESTWARDS WITH SPEED
OF 30
KMPH DURING PAST 6 HOURS AND LAY CENTERED AT 1730 HOURS IST OF TODAY,
THE 31 ST
OCTOBER, 2026 OVER SOUTHEAST BAY OF BENGAL, NEAR LATITUDE 10.5ON AND
LONGITUDE
88.6OE, ABOUT 960 KM EAST-SOUTHEAST OF CHENNAI (CHENNAI), 980 KM
SOUTHEAST OF
VISHAKHAPATNAM (ANDHRA PRADESH) AND 1030 KM SOUTHEAST OF
MACHILIPATNAM
(ANDHRA PRADESH) AND 1080 KM EAST-SOUTHEAST OF ONGOLE (ANDHRA
PRADESH).
IT IS VERY LIKELY TO MOVE WEST-NORTHWESTWARDS AND INTENSIFY INTO A
DEEP
DEPRESSION OVER SOUTHEAST BAY OF BENGAL BY MIDNIGHT OF TODAY, INTO A
CYCLONIC
STORM OVER THE SAME REGIO ON 1 ST NOVEMBER AND INTO A SEVERE CYCLONIC
STORM
OVER WESTCENTRAL BAY OF BENGAL ON 2 ND NOVEMBER.
IT IS VERY LIKELY TO REACH OVER WESTCENTRAL BAY OF BENGAL NEAR SOUTH
ANDHRA
PRADESH COAST BY EARLY HOURS OF 3 RD NOVEMBER AND CROSS SOUTH ANDHRA
PRADESH
COAST AS A SEVERE CYCLONIC STORM WITH WIND SPEED OF 100 TO 110 KMPH
GUSTING
120KMPH BETWEEN NELLORE AND NARSAPUR BY MORNING OF 3 RD NOVEMBER
2026.
DATE/TIME
(IST)
POSITION
(LAT. 0 N/ LONG. 0 E)
MAXIMUM SUSTAINED SURFACE
WIND SPEED (KMPH)
CATEGORY OF CYCLONIC
DISTURBANCE
31.10.26/1230 10.5/88.6
45-55 GUSTING TO 65 DEPRESSION
31.10.26/1830 10.9/88.2
50-60 GUSTING TO 70 DEEP DEPRESSION
01.10.26/0530
11.3/87.3
60-70 GUSTING TO 80 CYCLONIC STORM
01.11.26/1130
11.8/86.3
65-75 GUSTING TO 85 CYCLONIC STORM
01.11.26/1730 12.3/85.4 70-80 GUSTING TO 90 CYCLONIC STORM
02.11.26/0530 13.2/83.4 80-90 GUSTING TO 100 CYCLONIC STORM
02.11.26/1730 14.3/81.6 90-100 GUSTING TO 110 SEVERE CYCLONIC STORM
03.11.26/0530 15.4/80.3 100-110 GUSTING TO 120 SEVERE CYCLONIC STORM
03.11.26/1730 16.6/9.2 70-80 GUSTING TO 90 CYCLONIC STORM
04.11.26/0530 17.9/78.1 50-60 GUSTING TO 70 DEEP DEPRESSION
04.11.26/0530 19.3/77.3 35-45 GUSTING TO 55 DEPRESSION
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 31 ST OCT 2026 TO 12 UTC OF 01
ST NOV 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) W OF 75 DEG E TO THE S OF 4 DEG N: FAIRLY WIDESPREAD
RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) W OF 75 DEG E TO THE S OF 4 DEG N: POOR.
2) REST AREA: GOOD.
ARB A1-FORECAST VALID FROM 12 UTC OF 01 ST NOV 2026 TO 12 UTC OF 02
ND NOV 2026.
I) WIND DIRECTION AND SPEED: 1) W OF 70 DEG E: SE-LY 05/10 KTS BEC
NE/N-LY 05/10 KTS
TO THE W OF 74 DEG E.
2) REST AREA: NE/N-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) S OF 8 DEG N: SCATTERED RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 8 DEG N: MODERATE.
2) REST AREA: 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 18 UTC OF 31 ST OCT 2026 TO 12 UTC OF 01
ST NOV 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 05/10 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) E OF 60 DEG E TO THE S OF 20 DEG N: ISOLATED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 20 DEG N: GOOD.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 12 UTC OF 01 ST NOV 2026 TO 12 UTC OF 02
ND NOV 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 05/15 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: 1) S OF 20 DEG E: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 20 DEG E: 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 31 ST OCT 2026 TO 12 UTC OF 01
ST NOV 2026.
I) WIND DIRECTION AND SPEED: 1) N OF 5 DEG N: SE/S-LY 05/10 KTS.
2) REST AREA:SE/E-LY 05/10 KTS.
II) WAVE HEIGHT: 0.5-2.0 MTR.
III) WEATHER: FAIRLY WIDESPREAD RA/TS.
IV) VISIBILITY: POOR.
BOB A3-FORECAST VALID FROM 12 UTC OF 01 ST NOV 2026 TO 12 UTC OF 02
ND NOV 2026.
I) WIND DIRECTION AND SPEED: NE/E-LY 05/10 KTS BEC E/SE-LY 05/15 KTS
TO THE W OF 88 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 18 UTC OF 31 ST OCT 2026 TO 12 UTC OF 01
ST NOV 2026.
I) WIND DIRECTION AND SPEED: CYCLONIC 15/25 KTS AT 88.6 DEG E AND
10.5 DEG N.
II) WAVE HEIGHT: 2.5-4.5 MTR.
III) WEATHER: 1) S OF 17 DEG N: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 17 DEG N: VERY POOR.
2) REST AREA: GOOD.
BOB: A4: BAY OF BENGAL N OF 10 DEG N E OF 80 DEG E.
BOB A4-FORECAST VALID FROM 12 UTC OF 01 ST NOV 2026 TO 12 UTC OF 02
ND NOV 2026.
I) WIND DIRECTION AND SPEED: CYCLONIC 35/45 KTS AT 85.4 DEG E AND
12.3 DEG N.
II) WAVE HEIGHT: 6.0-9.0 MTR.
III) WEATHER: 1) S OF 20 DEG N: WIDESPREAD RA/TS.
2) REST AREA: ISOLATED RA/TS.
IV) VISIBILITY: 1) S OF 20 DEG N: VERY 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 01/0800 UTC.=