GLOBAL MARITIME 081530 IST
DATE/TIME OF ISSUE: 08-01-2026/1000 UTC
SPL GMDSS BULLETIN NO-4 081000
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 10 UTC OF 08TH JAN 2026 TO 00 UTC OF 10TH JAN 2026.
PART-I STORM WARNING: NIL.
PART-II SYNOPTIC WEATHER SYSTEM AT 0600 UTC:
SUBJECT: DEEP DEPRESSION OVER SOUTHWEST BAY OF BENGAL AND ADJOINING
EAST EQUATORIAL INDIAN OCEAN
THE DEEP DEPRESSION OVER SOUTHWEST BAY OF BENGAL AND ADJOINING EAST
EQUATORIAL INDIAN OCEAN MOVED NEARLY WEST-NORTHWESTWARDS WITH A SPEED
OF 15 KMPH DURING PAST 6 HOURS, AND LAY CENTRED AT 0600 UTC OF TODAY,
THE 8TH JANUARY, 2026 OVER THE SAME REGION, NEAR LATITUDE 5.7ON AND
LONGITUDE 84.5OE, ABOUT 320 KM EAST-SOUTHEAST OF POTTUVIL (SRI
LANKA), 380 KM EAST-SOUTHEAST OF HAMBANTOTA (SRI LANKA), 380 KM
EAST-SOUTHEAST OF BATTICALOA (SRI LANKA), 480 KM SOUTHEAST OF
TRINCOMALEE (SRI LANKA), 780 KM SOUTHEAST OF KARAIKAL (PUDUCHERRY)
AND 940 KM SOUTH-SOUTHEAST OF CHENNAI (TAMIL NADU).
IT IS VERY LIKELY TO MOVE WEST-NORTHWESTWARDS ACROSS SOUTHWEST BAY OF
BENGAL DURING NEXT 36 HOURS AND CROSS SRI LANKA COAST BETWEEN
HAMBANTOTA AND BATTICALOA AROUND EVENING/NIGHT OF TOMORROW, THE 9TH
JANUARY 2026.
FORECAST TRACK AND INTENSITY IS GIVEN IN TABLE BELOW:
DATE/TIME
(UTC)
POSITION
(LAT. 0N/ LONG. 0E)
MAXIMUM SUSTAINED SURFACE
WIND SPEED (KMPH)
CATEGORY OF CYCLONIC DISTURBANCE
08.01.26/0600
5.7/84.5
50-60 GUSTING TO 70
DEEP DEPRESSION
08.01.26/1200
6.0/84.0
50-60 GUSTING TO 70
DEEP DEPRESSION
08.01.26/1800
6.3/83.5
50-60 GUSTING TO 70
DEEP DEPRESSION
08.01.26/0000
6.6/82.9
50-60 GUSTING TO 70
DEEP DEPRESSION
09.01.26/0600
6.8/82.3
50-60 GUSTING TO 70
DEEP DEPRESSION
09.01.26/1800
7.0/81.5
40-50 GUSTING TO 60
DEPRESSION
10.01.26/0600
6.9/80.7
30-40 GUSTING TO 50
WELL MARKED LOW PRESSURE AREA
PART-III AREA FORECAST:
AREA: ARB A1 (ARABIAN SEA)-EQUATOR TO 10 DEG N W OF 80 DEG E.
ARB A1-FORECAST VALID FROM 10 UTC OF 08TH JAN 2026 TO 00 UTC OF 09TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: ISOLATED RA/TS.
IV) VISIBILITY: GOOD.
ARB A1-FORECAST VALID FROM 00 UTC OF 09TH JAN 2026 TO 00 UTC OF 10TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE/N-LY 10/25 KTS.
II) WAVE HEIGHT: 1.5-4.0 MTR.
III) WEATHER: ISOLATED RA/TS.
IV) VISIBILITY: 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 10 UTC OF 08TH JAN 2026 TO 00 UTC OF 09TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) E OF 60 DEG E TO THE S OF 18 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 18 DEG N: MODERATE.
2) REST AREA: GOOD.
ARB A2-FORECAST VALID FROM 00 UTC OF 09TH JAN 2026 TO 00 UTC OF 10TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE-LY 10/20 KTS.
II) WAVE HEIGHT: 1.5-2.5 MTR.
III) WEATHER: 1) E OF 59 DEG E TO THE S OF 16 DEG N: SCATTERED RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) E OF 59 DEG E TO THE S OF 16 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 10 UTC OF 08TH JAN 2026 TO 00 UTC OF 09TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE/E-LY 15/20 KTS BEC CYCLONIC 30/35 KTS
AT 84.5 DEG E AND 5.7 DEG N.
II) WAVE HEIGHT: 4.06.0 MTR.
III) WEATHER: WIDESPREAD RA/TS.
IV) VISIBILITY: VERY POOR.
BOB A3-FORECAST VALID FROM 00 UTC OF 09TH JAN 2026 TO 00 UTC OF 10TH
JAN 2026.
I) WIND DIRECTION AND SPEED: NE/E-LY 15/20 KTS BEC CYCLONIC 30/35 KTS
AT 82.3 DEG E AND 6.8 DEG N.
II) WAVE HEIGHT: 4.06.0 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 10 UTC OF 08TH JAN 2026 TO 00 UTC OF 09TH
JAN 2026.
I) WIND DIRECTION AND SPEED: N/NE-LY 10/25 KTS.
II) WAVE HEIGHT: 2.04.0 MTR.
III) WEATHER: 1) S OF 14 DEG N TO THE W OF 92 DEG E: WIDESPREAD
RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 14 DEG N TO THE W OF 92 DEG E: VERY POOR.
2) REST AREA: GOOD.
BOB A4-FORECAST VALID FROM 00 UTC OF 09TH JAN 2026 TO 00 UTC OF 10TH
JAN 2026.
I) WIND DIRECTION AND SPEED: N/NE-LY 15/20 KTS.
II) WAVE HEIGHT: 2.02.5 MTR.
III) WEATHER: 1) S OF 15 DEG N TO THE W OF 90 DEG E: WIDESPREAD
RA/TS.
2) REST AREA: FAIR.
IV) VISIBILITY: 1) S OF 15 DEG N TO THE W OF 90 DEG E: 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 08/1700 UTC.
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ISSUED BY INDIA METEOROLOGICAL DEPARTMENT=