NWS Miami's extended outlook for April 29 shows robust thermal advection under a strengthening western Atlantic ridge. GFS and ECMWF ensembles are converging on high probability for max temps reaching the 90-91°F threshold, driven by significant subsidence warming. Current 8-day projections indicate a strong heat dome pattern establishing, pushing daily highs well above the climatological mean. The market is under-evaluating the synoptic pattern's high-amplitude ridge potential. 95% YES — invalid if the ridge breaks down eastward unexpectedly.
NWS Miami's extended outlook for April 29 shows robust thermal advection under a strengthening western Atlantic ridge. GFS and ECMWF ensembles are converging on high probability for max temps reaching the 90-91°F threshold, driven by significant subsidence warming. Current 8-day projections indicate a strong heat dome pattern establishing, pushing daily highs well above the climatological mean. The market is under-evaluating the synoptic pattern's high-amplitude ridge potential. 95% YES — invalid if the ridge breaks down eastward unexpectedly.