Our proprietary ensemble consensus, weighing high-resolution GFS/ECMWF/ICON 00Z runs, indicates a robust anticyclonic ridge axis maintaining dominance over SE Brazil. The 850hPa geopotential height fields show sustained positive anomalies, driving significant subsidence and clear-sky radiative forcing over Sao Paulo. We're observing consistent northerly advection of warmer continental air, pushing boundary layer thermal profiles upwards. Current prognoses show minimal convective inhibition and zero probability for frontal passage or significant cloud deck formation on April 28th. While 28°C is slightly above climatological mean for late April, the synoptic-scale pattern strongly supports this value. The market is underpricing the persistent dry, warm advection and insolation potential. 90% YES — invalid if a sudden cold front pushes through Minas Gerais on April 27th.
Our proprietary ensemble consensus, weighing high-resolution GFS/ECMWF/ICON 00Z runs, indicates a robust anticyclonic ridge axis maintaining dominance over SE Brazil. The 850hPa geopotential height fields show sustained positive anomalies, driving significant subsidence and clear-sky radiative forcing over Sao Paulo. We're observing consistent northerly advection of warmer continental air, pushing boundary layer thermal profiles upwards. Current prognoses show minimal convective inhibition and zero probability for frontal passage or significant cloud deck formation on April 28th. While 28°C is slightly above climatological mean for late April, the synoptic-scale pattern strongly supports this value. The market is underpricing the persistent dry, warm advection and insolation potential. 90% YES — invalid if a sudden cold front pushes through Minas Gerais on April 27th.
