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 2026-10-12 to 09 UTC of 2026-10-13
| Synoptic Situation | THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTH ANDAMAN SEA & NEIGHBOURHOOD EXTENDING UPTO 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS. UNDER ITS INFLUENCE, A LOW-PRESSURE AREA IS LIKELY TO FORM OVER THE SOUTHEAST BAY OF BENGAL AROUND 13TH OCTOBER, 2026. |
| Wind | EAST TO SOUTHEASTERLY 10 TO 15 KNOTS OVER NORTH ANDAMAN SEA AND EAST TO SOUTHEASTERLY 5 TO 10 KNOTS OVER SOUTH ANDAMAN SEA. |
| Weather | RAIN OR THUNDERSHOWER VERY LIKELY TO OCCUR AT MANY PLACES WITH HEAVY RAINFALL VERY LIKELY AT ONE OR TWO PLACES OVER ANDAMAN AND NICOBAR COAST . |
| 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 | SMOOTH TO SLIGHT OVER NORTH ANDAMAN SEA AND SMOOTH OVER SOUTH ANDAMAN SEA. |
| Port Signal | NIL. |
| Storm Surge/Tidal Warning | SWELL WAVES IN THE RANGE OF 15.0 - 19.0 SEC PERIOD WITH 1.0 - 1.5 M HEIGHT ARE FORECASTED UPTO 23:30 HOURS ON 13-10-2026. IT ADVISED THAT THERE IS A POSSIBILITY OF SURGING OF WAVES, BOATS TO PLY WITH UTMOST VIGILANCE, RECREATION WITH DUE CARE. |
| Wind | MAINLY NORTHEASTERLY; 10 TO 15 KNOTS OVER NORTHWEST BAY OF BENGAL. |
| Weather | DRY WEATHER MOST LIKELY TO PREVAIL OVER WEST BENGAL COAST. |
| Visibility | GOOD |
| Sea Condition | SMOOTH TO SLIGHT. |
| Port Signal | NIL. |
| Storm Surge/Tidal Warning | NIL |
| Time of Issue | 21:07 IST of 2026-10-12 |