13:34 UTC APRIL 20 2026

DISCUSSION:   LOW MOISTURE AND INSTABILITY IN THE ATMOSPHERE OVER THE NORTHEAST CARIBBEAN CONTINUE TO LIMIT SHOWER ACTIVITY. A COUPLE OF LIGHT SHOWERS ARE SEEN ON BOTH THE GUADELOUPE AND PUERTO RICO RADARS IN THE VICINITY OF THE REGION; HOWEVER, BY AND LARGE THE SHOWERS ARE NOT HITTING THE ISLANDS. RECENT ANALYSES ARE HIGHLIGHTING THE ATLANTIC HIGH BECOMING FULLY DOMINANT AS THE PRESENCE OF THE WEAK TROUGH IS NO LONGER VISIBLE. THE LATEST MODEL RUNS ARE PROJECTING ANOTHER DAY WHERE ATLANTIC HIGH WILL DOMINATE ALONG WITH A SUBSIDENCE PATTERN OVER THE AREA. THEREFORE, THE CHANCES OF SHOWERS WILL REMAIN AT MODERATE OR 40 PERCENT FOR THE MOST AS THE GENERALLY MODERATE WIND-FLOW COULD BRING SOME SHALLOW POCKETS OF MOISTURE ACROSS THE REGION.

..THE MODELS ARE ALSO PROJECTING A FURTHER REDUCTION IN LONG PERIOD SWELLS REACHING THE COASTAL WATERS OF THE NORTHERN LEEWARD ISLANDS AND THE BRITISH VIRGIN ISLANDS. SIGNIFICANT WAVE HEIGHTS COULD PEAK TO NEAR 6 FEET. SO, GENERALLY SAFE SEAS FOR MARINE ACTIVITIES FOR THE NEXT 24 HOURS.

FORECASTER

LORNE SALMON