ECMWF 00z runs project NYC May 10 temps peaking at 66°F. GFS 12z ensemble mean supports 67°F. Strong warm advection within a transient ridge drives this tight consensus. 90% YES — invalid if frontal timing deviates by >6 hours.
ECMWF 00z runs project NYC May 10 temps peaking at 66°F. GFS 12z ensemble mean supports 67°F. Strong warm advection within a transient ridge drives this tight consensus. 90% YES — invalid if frontal timing deviates by >6 hours.