ECMWF 00Z consistently flags 850mb temps -5C anomaly. Strong cold advection post-shortwave trough limits boundary layer mixing. GFS 12Z reinforces 18C max. This locks in sub-20C. 95% NO — invalid if mid-level ridging intensifies unexpectedly.
ECMWF 00Z consistently flags 850mb temps -5C anomaly. Strong cold advection post-shortwave trough limits boundary layer mixing. GFS 12Z reinforces 18C max. This locks in sub-20C. 95% NO — invalid if mid-level ridging intensifies unexpectedly.