ECMWF and GFS ensemble outputs show robust agreement for significant warm air advection over the North China Plain, pushing thermal anomalies +4-6°C above the seasonal mean for April 29. The persistent ridging pattern ensures clear sky conditions and strong insolation. Beijing's climatological probability for a 28°C high on this date is elevated under such a synoptic setup. Expect a clear exceedance. 90% YES — invalid if significant cloud cover or a late-breaking cold front disrupts the advection.
ECMWF and GFS ensemble outputs show robust agreement for significant warm air advection over the North China Plain, pushing thermal anomalies +4-6°C above the seasonal mean for April 29. The persistent ridging pattern ensures clear sky conditions and strong insolation. Beijing's climatological probability for a 28°C high on this date is elevated under such a synoptic setup. Expect a clear exceedance. 90% YES — invalid if significant cloud cover or a late-breaking cold front disrupts the advection.
