GFS/ECMWF ensemble means show a developing ridge over PNW, driving warm advection. The 00z runs consistently pin highs above 65F, with a high ceiling. Over-target bias. 90% NO — invalid if GFS/ECMWF 00z runs shift 5F lower.
GFS/ECMWF ensemble means show a developing ridge over PNW, driving warm advection. The 00z runs consistently pin highs above 65F, with a high ceiling. Over-target bias. 90% NO — invalid if GFS/ECMWF 00z runs shift 5F lower.