Singapore's May climatology already registers a 60% historical frequency above 32°C. Current ECMWF and GFS ensembles consistently project a strong ridge aloft over the region, suppressing any significant convective activity and maximizing diurnal insolation. Surface temperature anomalies are running +1.4°C above seasonal. This will drive boundary layer heating well past 32°C. Market is mispricing the lack of afternoon cloud cover. 90% YES — invalid if 12Z ECMWF on May 10th shows substantial PWAT increase and organized convection.
Singapore's May climatology already registers a 60% historical frequency above 32°C. Current ECMWF and GFS ensembles consistently project a strong ridge aloft over the region, suppressing any significant convective activity and maximizing diurnal insolation. Surface temperature anomalies are running +1.4°C above seasonal. This will drive boundary layer heating well past 32°C. Market is mispricing the lack of afternoon cloud cover. 90% YES — invalid if 12Z ECMWF on May 10th shows substantial PWAT increase and organized convection.
