FQIN01 DEMS 170900 GMDSS BULLETIN I 170900 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 09 UTC OF 17 TH SEPTEMBER 2026 TO 00 UTC OF 19 TH SEPTEMBER 2026. PART-I STORM WARNING: NIL. PART-II SYNOPTIC WEATHER SYSTEM AT 0300 UTC: THE LOW PRESSURE AREA OVER SAURASHTRA & ADJOINING NORTHEAST ARABIAN SEA PERSISTED OVER THE SAME REGION AT 0300 UTC OF TODAY 17 TH SEPTEMBER 2026. THE ASSOCIATED CYCLONIC CIRCULATION EXTENDS UP TO 5.8 KM ABOVE MEAN SEA LEVEL TILTING SOUTHWARDS WITH HEIGHT. THE UPPER-AIR CYCLONIC CIRCULATION OVER NORTH THAILAND PERSISTED OVER THE SAME REGION AT 0300 UTC OF TODAY, THE 17 TH SEPTEMBER 2026 AND EXTENDS UPTO 7.6 KM ABOVE MEAN SEA LEVEL. IT IS LIKELY TO EMERGE OVER THE NORTH ANDAMAN SEA AROUND 18TH SEPTEMBER EVENING AND UNDER ITS INFLUENCE A LOW PRESSURE AREA IS LIKELY TO FORM OVER THE SAME REGION AROUND THE EVENING OF 19TH SEPTEMBER 2026. THEREAFTER, IT IS LIKELY TO INTENSIFY GRADUALLY AND MOVE WEST-NORTHWESTWARDS TOWARDS SOUTH ODISHA-NORTH ANDHRA PRADESH COASTS DURING SUBSEQUENT 3-4 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 09 UTC OF 17 TH SEP 2026 TO 00 UTC OF 18 TH SEP 2026. I) WIND DIRECTION AND SPEED: 1) W OF 62 DEG E: SW/W-LY 10/25 KTS. 2) REST AREA: NW-LY 05/10 KTS BEC SW-LY 10/15 KTS TO THE E OF 75 DEG E. II) WAVE HEIGHT: 1.0-3.0 MTR. III) WEATHER: SCATTERED RA/TS. IV) VISIBILITY: MODERATE. ARB A1-FORECAST VALID FROM 00 UTC OF 18 TH SEP 2026 TO 00 UTC OF 19 TH SEP 2026. I) WIND DIRECTION AND SPEED: 1) W OF 62 DEG E: SW/W-LY 10/20 KTS. 2) REST AREA: NW/W-LY 05/10 KTS BEC W/SW-LY 10/20 KTS TO THE E OF 74 DEG E. II) WAVE HEIGHT: 1.0-3.0 MTR. III) WEATHER: 1) E OF 65 DEG E: WIDESPREAD RA/TS. 2) REST AREA: ISOLATED RA/TS. IV) VISIBILITY: 1) E OF 65 DEG E: VERY POOR. 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 09 UTC OF 17 TH SEP 2026 TO 00 UTC OF 18 TH SEP 2026. I) WIND DIRECTION AND SPEED: SW-LY 10/20 KTS BEC W/NW-LY 10/15 KTS TO THE E OF 64 DEG E. II) WAVE HEIGHT: 1.0-3.0 MTR. III) WEATHER: 1) E OF 60 DEG E TO THE S OF 23 DEG N: SCATTERED RA/TS. 2) REST AREA: ISOLATED RA/TS. IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 23 DEG N: MODERATE. 2) REST AREA: GOOD. ARB A2-FORECAST VALID FROM 00 UTC OF 18 TH SEP 2026 TO 00 UTC OF 19 TH SEP 2026. I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS BEC W/NW-LY 10/15 KTS TO THE E OF 66 DEG E. II) WAVE HEIGHT: 1.0-3.0 MTR. III) WEATHER: 1) E OF 60 DEG E TO THE S OF 20 DEG N: SCATTERED RA/TS. 2) REST AREA: ISOLATED RA/TS. IV) VISIBILITY: 1) E OF 60 DEG E TO THE S OF 20 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 09 UTC OF 17 TH SEP 2026 TO 00 UTC OF 18 TH SEP 2026. I) WIND DIRECTION AND SPEED: S/SW-LY 10/15 KTS BEC SW/W-LY 15/25 KTS TO THE N OF 5 DEG N. II) WAVE HEIGHT: 1.5-4.0 MTR. III) WEATHER: WIDESPREAD RA/TS. IV) VISIBILITY: VERY POOR. BOB A3-FORECAST VALID FROM 00 UTC OF 18 TH SEP 2026 TO 00 UTC OF 19 TH SEP 2026. I) WIND DIRECTION AND SPEED: S/SW-LY 10/15 KTS BEC SW/W-LY 15/25 KTS TO THE N OF 5 DEG N. II) WAVE HEIGHT: 1.5-3.5 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 09 UTC OF 17 TH SEP 2026 TO 00 UTC OF 18 TH SEP 2026. I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS. II) WAVE HEIGHT: 1.0-3.0 MTR. III) WEATHER: 1) S OF 15 DEG N: WIDESPREAD RA/TS. 2) REST AREA: ISOLATED RA/TS. IV) VISIBILITY: 1) S OF 15 DEG N: VERY POOR. 2) REST AREA: GOOD. BOB A4-FORECAST VALID FROM 00 UTC OF 18 TH SEP 2026 TO 00 UTC OF 19 TH SEP 2026. I) WIND DIRECTION AND SPEED: SW/W-LY 10/20 KTS BEC CYCLONIC 05/10 KTS AT 95 DEG E AND 12 DEG N. II) WAVE HEIGHT: 1.0.-3.0 MTR. III) WEATHER: WIDESPREAD RA/TS. IV) VISIBILITY: VERY POOR. 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 17/1700 UTC.=