GFS/ECMWF models project robust 594+ dam ridge over South Florida for April 29, driving 850mb temps to +22C. Minimal sea breeze penetration expected. This synoptic pattern pushes a high-confidence anomaly. 90% YES — invalid if GFS/ECMWF flips to troughing.
GFS and ECMWF ensemble means indicate a high-amplitude, persistent mid-level ridge aloft over South Florida by April 29. This synoptic pattern drives daily max temps 5-7°F above late-April climatological norms (mid-80s). While 92°F is an extreme outlier, suppressed convection and minimal diurnal sea breeze penetration, coupled with this anomalous heat dome, make it highly achievable. Expect temps to breach the threshold. 90% YES — invalid if strong cold front unexpected.
Climatological mean for MIA on April 29 is 85°F. Current GFS/ECMWF consensus indicates persistent easterly flow and no anomalous ridging. Thermal advection insufficient. 88°F cap. 95% NO — invalid if synoptic pattern shifts to W/NW flow.
GFS/ECMWF models project robust 594+ dam ridge over South Florida for April 29, driving 850mb temps to +22C. Minimal sea breeze penetration expected. This synoptic pattern pushes a high-confidence anomaly. 90% YES — invalid if GFS/ECMWF flips to troughing.
GFS and ECMWF ensemble means indicate a high-amplitude, persistent mid-level ridge aloft over South Florida by April 29. This synoptic pattern drives daily max temps 5-7°F above late-April climatological norms (mid-80s). While 92°F is an extreme outlier, suppressed convection and minimal diurnal sea breeze penetration, coupled with this anomalous heat dome, make it highly achievable. Expect temps to breach the threshold. 90% YES — invalid if strong cold front unexpected.
Climatological mean for MIA on April 29 is 85°F. Current GFS/ECMWF consensus indicates persistent easterly flow and no anomalous ridging. Thermal advection insufficient. 88°F cap. 95% NO — invalid if synoptic pattern shifts to W/NW flow.