ECMWF ensemble median 73°F, GFS 12z 76°F. Tight model clustering around 74°F-75°F. Weak shortwave trough limits strong warm advection. High probability for the narrow window. 90% YES — invalid if frontal boundary stalls north.
ECMWF ensemble median 73°F, GFS 12z 76°F. Tight model clustering around 74°F-75°F. Weak shortwave trough limits strong warm advection. High probability for the narrow window. 90% YES — invalid if frontal boundary stalls north.