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 2026-08-21 to 09 UTC of 2026-08-22
| Synoptic Situation | NIL |
| Wind | MAINLY SOUTHWESTERLY; 15 TO 20 KNOTS GUSTING TO 30 KNOTS OVER NORTH ANDAMAN SEA. MAINLY SOUTHWESTERLY; 15 TO 20 KNOTS GUSTING TO 25 KNOTS OVER SOUTH ANDAMAN SEA. |
| Weather | RAIN OR THUNDERSHOWER VERY LIKELY TO OCCUR AT MOST PLACES OVER ANDAMAN & NICOBAR COASTS, ALONG WITH HEAVY RAINFALL VERY LIKELY AT ONE OR TWO PLACES OVER ANDAMAN COAST. |
| Visibility | MODERATE BECOMING POOR IN HEAVY RAIN/THUNDERSHOWER OVER NORTH ANDAMAN SEA. MODERATE BECOMING POOR IN RAIN/THUNDERSHOWER OVER SOUTH ANDAMAN SEA. |
| Sea Condition | SLIGHT TO MODERATE OCASSIONALLY BECOMING VERY ROUGH OVER NORTH ANDAMAN SEA. SLIGHT TO MODERATE OCASSIONALLY BECOMING ROUGH OVER SOUTH ANDAMAN SEA. |
| Port Signal | KEEP HOISTED LOCAL CAUTIONARY SIGNAL NO. 3 AT SRI VIJAYAPURAM PORT. |
| Storm Surge/Tidal Warning | SWELL WAVES IN THE RANGE OF 15.0 - 18.0 SEC PERIOD WITH 1.1 2.5 M HEIGHT ARE FORECASTED UPTO 23:30 HOURS ON 22-08-2026. IT ADVISED THAT THERE IS A POSSIBILITY OF SURGING OF WAVES, BOATS TO PLY WITH UTMOST VIGILANCE, RECREATION WITH DUE CARE. HIGH WAVE ALERT FOR THE ANDAMAN AND NICOBAR COASTS: HIGH WAVES IN THE RANGE OF 3.0 - 3.5 METERS ARE FORECASTED UP TO 23:30 HOURS ON 22-08-2026. IT ADVISED THAT TO BE CAREFUL WHILE DOING MARINE OPERATIONS AND NEARSHORE RECREATION. |
| Wind | SOUTH TO SOUTHWESTERLY; 10 TO 15 KNOTS. |
| Weather | RAIN OR THUNDERSHOWER VERY LIKELY TO OCCUR AT MANY PLACES OVER WEST BENGAL COAST. |
| Visibility | GOOD BECOMING MODERATE IN RAIN/THUNDERSHOWER. |
| Sea Condition | SMOOTH TO SLIGHT. |
| Port Signal | NIL. |
| Storm Surge/Tidal Warning | SWELL WAVES IN THE RANGE OF 15.0 - 18.0 SEC PERIOD WITH 1.2 - 1.3 M HEIGHT ARE FORECASTED UPTO 17:30 HOURS ON 22-08-2026. IT ADVISED THAT THERE IS A POSSIBILITY OF SURGING OF WAVES, BOATS TO PLY WITH UTMOST VIGILANCE, RECREATION WITH DUE CARE. |
| Time of Issue | 21:37 IST of 2026-08-21 |