India Meteorological Department/ भारत मौसम विज्ञान विभाग

ACWC KOLKATA / ए .सी .डब्लू .सी कोलकाता

Sea Area Bulletin

Bulletin Valid for 12 hrs from 09 UTC of 2026-07-27 to 21 UTC of 2026-07-27

 
TTT Warning TTT Deep Depression over Northwest Bay of Bengal and adjoining areas of North Odisha-West Bengal coasts

 
Synoptic Situation The Deep Depression over Northwest Bay of Bengal and adjoining areas of West Bengal-North Odisha coasts moved very slowly northwards with the speed of 3 kmph during past 6 hours and lay centred at 0830 hrs IST of today, the 27th July 2026, over the same region near latitude 21.4°N and longitude 88.1°E, about 30 km south of Sagar Island (West Bengal), 70 km east-southeast of Digha (West Bengal), 90 km south of Diamond Harbour (West Bengal), 110 km south-southwest of Canning (West Bengal) and 120 km east-southeast of Balasore (Odisha). It is very likely to move nearly north-northwestwards and cross West Bengal-north Odisha coasts between Balasore & Canning around afternoon of today, the 27th July 2026. South West monsoon strong over Central Bay; moderate to strong over Southeast Bay; moderate over Andaman sea and Southwest Bay.

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

South East Bay
Wind Mainly Southwesterly, 20 - 25 kts
Weather Isolated rain or thundershowers
Visibility Good becoming Moderate in rain/thundershower
Sea Condition Moderate to Rough

West Central Bay
Wind Mainly Southwesterly, 25 - 30 kts gusting 35 kts
Weather Fairly widespread rain or thundershowers with isolated heavy rain
Visibility Moderate becoming Poor in heavy rain/thundershower
Sea Condition Rough to Very Rough occassionally High

East Central Bay
Wind Mainly Southwesterly, 25 - 30 kts gusting 35 kts
Weather Fairly widespread rain or thundershowers with isolated heavy rain
Visibility Moderate becoming Poor in heavy rain/thundershower
Sea Condition Rough to Very Rough occassionally High

North West Bay
Wind Southwest to Westerly, 25 - 30 kts gusting 35 kts
Weather Widespread rain or thundershowers with isolated heavy rain
Visibility Moderate becoming Poor in heavy rain/thundershower
Sea Condition Rough to Very Rough occassionally High

North East Bay
Wind Southeast to Southerly, 25 - 30 kts gusting 35 kts
Weather Widespread rain or thundershowers with isolated heavy rain
Visibility Moderate becoming Poor in heavy rain/thunder shower
Sea Condition Rough to Very Rough occassionally High

South Andaman Sea
Wind Mainly Southwesterly, 15 - 20 kts
Weather Scattered rain or thundershowers
Visibility Good becoming Moderate in rain/thundershower
Sea Condition Slight to Moderate

North Andaman Sea
Wind Mainly 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

Part 4 Surface Chart

Part 5 NIL

Part 6 AAXX,02703,,, 99942,,,, 807,21595,80202,10274,49963 811,21496,80904,10258,49958 901,21496,83604,10268,49955 806,21495,80202,10264,49955 903,22596,83204,10268,49950 895,21496,73603,10274,49971 976,21495,72903,10284,49988= 99943,,,, 049,21496,82302,10286,49999 053,21595,72308,10292,49989 105,22597,82501,10288,40004 150,21596,72705,10304,40015 185,21596,82902,10262,40034 245,32597,62703,10310,40052 346,32997,52708,10310,40062 279,22597,62712,10324,40060=

Time of Issue13:30 IST of 2026-07-27