ECMWF/GFS operational runs consistently show strong upper-level ridge and southerly advection. Toronto hitting 23-25°C April 27. High confidence in the warm-up, clear signal for 20°C+. 95% YES — invalid if synoptic pattern shifts westerly.
ECMWF/GFS operational runs consistently show strong upper-level ridge and southerly advection. Toronto hitting 23-25°C April 27. High confidence in the warm-up, clear signal for 20°C+. 95% YES — invalid if synoptic pattern shifts westerly.