ECMWF and GFS models consistently project Shanghai highs >22°C for April 28. The 16°C threshold is critically mispriced; a significant upside deviation is locked in. 95% NO — invalid if major cold front shifts south.
ECMWF and GFS ensembles for Shanghai on April 28 consistently project peak diurnal temperatures in the 20-23°C range. Strong solar insolation and a prevailing anticyclonic ridge will drive robust thermal advection, preventing the boundary layer from staying suppressed. The 16°C threshold is well below the climatological average for late April, making a 'yes' outcome highly improbable without a major, unforecasted cold front or prolonged heavy precipitation. My signal is strong. 95% NO — invalid if the 00Z ECMWF operational run on April 27 shifts the Shanghai high below 18°C.
ECMWF and GFS models consistently project Shanghai highs >22°C for April 28. The 16°C threshold is critically mispriced; a significant upside deviation is locked in. 95% NO — invalid if major cold front shifts south.
ECMWF and GFS ensembles for Shanghai on April 28 consistently project peak diurnal temperatures in the 20-23°C range. Strong solar insolation and a prevailing anticyclonic ridge will drive robust thermal advection, preventing the boundary layer from staying suppressed. The 16°C threshold is well below the climatological average for late April, making a 'yes' outcome highly improbable without a major, unforecasted cold front or prolonged heavy precipitation. My signal is strong. 95% NO — invalid if the 00Z ECMWF operational run on April 27 shifts the Shanghai high below 18°C.
