No. GFS and ECMWF 12z runs consistently project 850mb temperatures too low for a 48-49°F high in Denver. Strong post-frontal cold air advection will suppress boundary layer mixing, anchoring surface highs to the 43-46°F range. The ensemble mean is robustly centered at 44.5°F, exhibiting tight clustering. 90% NO — invalid if the frontal passage delays by >6 hours, altering advective flow.
No. GFS and ECMWF 12z runs consistently project 850mb temperatures too low for a 48-49°F high in Denver. Strong post-frontal cold air advection will suppress boundary layer mixing, anchoring surface highs to the 43-46°F range. The ensemble mean is robustly centered at 44.5°F, exhibiting tight clustering. 90% NO — invalid if the frontal passage delays by >6 hours, altering advective flow.
