India Meteorological Department/ भारत मौसम विज्ञान विभाग
ACWC KOLKATA / ए .सी .डबब्लू .सी कोलकाता
Coastal Weather Bulletin
DAILY TWO Bulletin Valid for 12 hrs from 21 UTC of 2026-08-30 to 09 UTC of 2026-08-31
| Synoptic Situation | MORNING'S WELL-MARKED LOW PRESSURE AREA OVER NORTHWEST BAY OF BENGAL & ADJOINING WEST BENGAL-NORTH ODISHA LAY OVER GANGETIC WEST BENGAL AND ADJOINING AREAS OF NORTH COASTAL ODISHA & NORTHWEST BAY OF BENGAL AT 1730 IST OF TODAY 30TH AUGUST, 2026. THE ASSOCIATED CYCLONIC CIRCULATION EXTENDS UPTO 7.6 KM ABOVE MEAN SEA LEVEL. IT IS LIKELY TO MOVE WEST-NORTHWESTWARDS ACROSS NORTH ODISHA- GANGETIC WEST BENGAL DURING NEXT 24 HOURS. SOUTHWEST MONSOON MODERATE TO STRONG OVER NORTHWEST BAY OF BENGAL AND NORTH ANDAMAN SEA; MODERATE OVER SOUTH ANDAMAN SEA. |
| Wind | MAINLY SOUTHWESTERLY 20 TO 25 KNOTS GUSTING TO 30 KNOTS OVER NORTH ANDAMAN SEA AND MAINLY SOUTHWESTERLY 15 TO 20 KNOTS GUSTING TO 25 KNOTS OVER SOUTH ANDAMAN SEA. |
| Weather | RAIN OR THUNDERSHOWER VERY LIKELY TO OCCUR AT MANY PLACES OVER ANDAMAN & NICOBAR COASTS. |
| Visibility | MODERATE BECOMING POOR IN HEAVY RAIN/THUNDERSHOWER OVER NORTH ANDAMAN SEA AND GOOD BECOMING MODERATE IN RAIN/THUNDERSHOWER OVER SOUTH ANDAMAN SEA. |
| Sea Condition | MODERATE TO ROUGH OCASSIONALLY BECOMING VERY ROUGH OVER NORTH ANDAMAN SEA AND SLIGHT TO MODERATE OCASSIONALLY BECOMING ROUGH OVER SOUTH ANDAMAN SEA. |
| Port Signal | LOCAL CAUTIONARY SIGNAL NO. 3 IS KEPT HOISTED AT SRI VIJAYAPURAM PORT. |
| Storm Surge/Tidal Warning | SWELL WAVES IN THE RANGE OF 19.0 - 20.0 SEC PERIOD WITH 1.4 - 1.8 M HEIGHT ARE FORECASTED DURING 17:30 HOURS ON 30-08-2026 TO 23:30 HOURS ON 01-09-2026. IT ADVISED THAT THERE IS A POSSIBILITY OF SURGING OF WAVES, BOATS TO PLY WITH UTMOST VIGILANCE, RECREATION WITH DUE CARE. |
| Wind | CYCLONIC 20 TO 25 KNOTS GUSTING TO 30 KNOTS. |
| Weather | RAIN OR THUNDERSHOWER VERY LIKELY TO OCCUR AT MOST PLACES WITH HEAVY TO VERY HEAVY RAINFALL AT ONE OR TWO PLACES OVER WEST BENGAL COAST. |
| Visibility | MODERATE BECOMING POOR IN HEAVY RAIN/THUNDERSHOWER. |
| Sea Condition | MODERATE TO ROUGH OCASSIONALLY BECOMING VERY ROUGH. |
| Port Signal | LOCAL CAUTIONARY SIGNAL NO.-3 IS KEPT HOISTED AT KOLKATA & HALDIA PORTS WITH SECTIONAL SIGNAL NO- I AT SAGAR ISLAND PORT. |
| Storm Surge/Tidal Warning | NIL |
| Time of Issue | 21:51 IST of 2026-08-30 |