India Meteorological Department/ भारत मौसम विज्ञान विभाग

CWC THIRUVANANTHAPURAM / सी .डबब्लू .सी तिरुवनंतपुरम

Coastal Weather Bulletin

DAILY TWO Bulletin Valid for 12 hrs from 22 UTC of 2025-05-21 to 10 UTC of 2025-05-22

 
Synoptic Situation AN UPPER AIR CYCLONIC CIRCULATION EXTENDING UPTO MID-TROPOSPHERIC LEVEL LAY OVER EASTCENTRAL ARABIAN SEA OFF NORTH KARNATAKA-GOA COASTS AT 1430 IST OF TODAY, THE 21ST MAY 2025. UNDER ITS INFLUENCE, A LOW-PRESSURE AREA IS LIKELY TO FORM OVER THE SAME REGION DURING NEXT 12 HOURS. THEREAFTER, IT IS LIKELY TO MOVE NEARLY NORTHWARDS AND INTENSIFY FURTHER INTO A DEPRESSION DURING SUBSEQUENT 36 HOURS.

 
Karnataka coast
Wind WEST/ SOUTH WESTERLY, 15 - 20 KNOTS GUSTING TO 25 KNOTS
Weather WIDESPREAD RAIN/ THUNDERSTORM
Visibility MODERATE BECOMING POOR IN RAIN/THUNDERSHOWERS, VERY POOR IN HEAVY FALLS.
Sea Condition MODERATE TO ROUGH
Port Signal LOCAL CAUTIONARY SIGNAL NUMBER III
Storm Surge/Tidal Warning SWELL SURGE ALERT FOR THE COAST OF DAKSHINA KANNADA, UDUPI, UTTARA KANNADA . SWELL WAVES IN THE RANGE OF 16.0 - 19.0 SEC PERIOD WITH 0.8 - 1.0 M HEIGHT ARE FORECASTED DURING 17:30 HOURS ON 21-05-2025 TO 17:30 HOURS ON 23-05-2025.

North Kerala coast
Wind WEST/ SOUTH WESTERLY, 15 - 20 KNOTS GUSTING TO 25 KNOTS
Weather FAIRLY WIDESPREAD RAIN/ THUNDERSTORM
Visibility MODERATE BECOMING POOR IN RAIN/THUNDERSHOWERS, VERY POOR IN HEAVY FALLS.
Sea Condition MODERATE TO ROUGH
Port Signal LOCAL CAUTIONARY SIGNAL NUMBER III
Storm Surge/Tidal Warning SWELL SURGE ALERT FOR THE COAST OF KANNUR,KASARAGOD, KOZHIKODE, MALAPPURAM, THRISSUR SWELL WAVES IN THE RANGE OF 16.0 - 18.0 SEC PERIOD WITH 0.7 - 0.8 M HEIGHT ARE FORECASTED DURING 17:30 HOURS ON 21-05-2025 TO 20:30 HOURS ON 23-05-2025.

South Kerala coast
Wind WEST/ NORTH WESTERLY, 15 - 20 KNOTS GUSTING TO 25 KNOTS
Weather FAIRLY WIDESPREAD RAIN/ THUNDERSTORM
Visibility MODERATE BECOMING POOR IN RAIN/THUNDERSHOWERS, VERY POOR IN HEAVY FALLS.
Sea Condition MODERATE TO ROUGH
Port Signal LOCAL CAUTIONARY SIGNAL NUMBER III
Storm Surge/Tidal Warning SWELL SURGE ALERT FOR THE COAST OF ALAPPUZHA, ERNAKULAM, KOLLAM, THIRUVANANTHAPURAM SWELL WAVES IN THE RANGE OF 17.0 - 18.0 SEC PERIOD WITH 0.7 - 0.8 M HEIGHT ARE FORECASTED DURING 17:30 HOURS ON 21-05-2025 TO 20:30 HOURS ON 23-05-2025.

Lakshadweep area
Wind WEST/ SOUTH WESTERLY, 15 - 20 KNOTS GUSTING TO 25 KNOTS
Weather FAIRLY WIDESPREAD RAIN/ THUNDERSTORM
Visibility MODERATE BECOMING POOR IN RAIN/THUNDERSHOWERS.
Sea Condition MODERATE TO ROUGH
Port Signal LOCAL CAUTIONARY SIGNAL NUMBER III
Storm Surge/Tidal Warning SWELL SURGE ALERT FOR THE COAST OF AGATTI,AMINI, ANDROTH, KAVARATTI, MINICOY SWELL WAVES IN THE RANGE OF 15.0 - 19.0 SEC PERIOD WITH 1.0 - 1.2 M HEIGHT ARE FORECASTED TILL 17:30 HOURS ON 22-05-2025.

Time of Issue21:01 IST of 2025-05-21