India Meteorological Department/ भारत मौसम विज्ञान विभाग

ACWC KOLKATA / ए .सी .डब्लू .सी कोलकाता

Sea Area Bulletin

Bulletin Valid for 12 hrs from 21 UTC of 2026-11-15 to 09 UTC of 2026-11-16

 
TTT Warning TTT Depression over Southeast & adjoining Southwest Bay of Bengal

 
Synoptic Situation The Depression over Southeast & adjoining Southwest Bay of Bengal moved north-northwestwards with the speed of 07 kmph during past 06 hours and lay centered at 1730 hours IST of today, the 15th November, 2026 over the same region, near Latitude 10.2°N and Longitude 86.8°E, about 630 km east-northeast of Trincomalee (Sri Lanka), 670km west-southwest of Sri Vijaya Puram (Andaman & Nicobar Islands), 780 km east-southeast of Chennai (Tamil Nadu), 920 km south-southeast of Visakhapatnam (Andhra Pradesh) and 1030 km south-southeast of Gopalpur (Odisha). It is very likely to move north-northwestwards, intensify further into a Cyclonic Storm over the central parts of south & adjoining westcentral Bay of Bengal on evening of 16th November and into a Severe Cyclonic Storm over westcentral Bay of Bengal on evening of 17th November, 2026. Thereafter, it is likely to intensify further and move northwestwards towards Andhra Pradesh coast during subsequent 2 days.

 
South West Bay
Wind Cyclonic, 30 - 35 kts gusting 40 kts
Weather Widespread rain or thundershowers with isolated heavy to very heavy rain
Visibility Moderate becoming poor to Very Poor in heavy to very heavy rain/thundershower
Sea Condition Very Rough to High

South East Bay
Wind Cyclonic, 30 - 35 kts gusting 40 kts
Weather Widespread rain or thundershowers with isolated heavy to very heavy rain
Visibility Moderate becoming poor to Very Poor in heavy to very heavy rain/thundershower
Sea Condition Very Rough to High

West Central Bay
Wind Mainly Northeasterly, 15 - 20 kts
Weather Scattered rain or thundershowers
Visibility Good becoming Moderate in rain/thundershower
Sea Condition Slight to Moderate

East Central Bay
Wind Northeast to Easterly, 10 - 15 kts
Weather Isolated rain or thundershowers
Visibility Good becoming Moderate in rain/thundershower
Sea Condition Smooth to Slight

North West Bay
Wind North to Northeasterly, 5 - 10 kts
Weather Fair
Visibility Good
Sea Condition Smooth

North East Bay
Wind North to Northeasterly, 10 - 15 kts
Weather Fair
Visibility Good
Sea Condition Smooth to Slight

South Andaman Sea
Wind South to Southwesterly, 15 - 20 kts gusting 25 kts
Weather Fairly widespread rain or thundershowers
Visibility Moderate becoming Poor in rain/thunder shower
Sea Condition Slight to Moderate ocassionally Rough

North Andaman Sea
Wind Southeast to Southerly, 15 - 20 kts gusting 25 kts
Weather Fairly widespread rain or thundershowers
Visibility Moderate becoming Poor in rain/thunder shower
Sea Condition Slight to Moderate ocassionally Rough

Part 4 Surface Chart

Part 5 NIL

Part 6 AAXX,01512,,, 99942,,,, 807,31595,30000,10272,40117 811,31595,30000,10266,40119 901,32996,30000,10272,40110 806,32596,22001,10274,40118 903,32996,22702,10274,40117 895,31595,40000,10270,40119 976,31995,00000,10272,40120= 99943,,,, 049,31996,30904,10276,40120 053,31995,23602,10288,40115 105,32597,70704,10276,40112 150,31596,50504,10278,40119 185,32597,60000,10272,40100 245,32597,60502,10280,40109 346,21496,83203,10262,40090 279,32596,83204,10276,40109=

Time of Issue21:49 IST of 2026-11-15