Miami's climatological mean high for May 10 sits firmly at 87°F, with historical data from the past five years showing only one occurrence at 85°F (2021) and none below. Current long-range ensemble guidance (GEFS/ECMWF) for May 10, 2024, places the 50th percentile high temperature at 87.8°F, with the 84-85°F target representing the lower 15th percentile of model output. Synoptic patterns indicate dominant maritime tropical advection and strong diurnal radiative forcing, fostering robust boundary layer mixing. While isolated afternoon convection is typical, thermodynamic profiles show sufficient cap erosion for morning heating to push past 85°F before widespread cloud cover develops. This specific, narrower band is statistically unlikely given the robust warming signal. 90% NO — invalid if a persistent, anomalous easterly wave or significant cold-frontal passage is projected within 72 hours of May 10.
GFS/ECMWF 00z ensembles target 86-88°F. Persistent sea breeze advection limits further rise, yet still above 85°F. Climatology for MIA mid-May supports this. 90% NO — invalid if 12z model runs shift 2F lower.
Miami's climatological mean high for May 10 sits firmly at 87°F, with historical data from the past five years showing only one occurrence at 85°F (2021) and none below. Current long-range ensemble guidance (GEFS/ECMWF) for May 10, 2024, places the 50th percentile high temperature at 87.8°F, with the 84-85°F target representing the lower 15th percentile of model output. Synoptic patterns indicate dominant maritime tropical advection and strong diurnal radiative forcing, fostering robust boundary layer mixing. While isolated afternoon convection is typical, thermodynamic profiles show sufficient cap erosion for morning heating to push past 85°F before widespread cloud cover develops. This specific, narrower band is statistically unlikely given the robust warming signal. 90% NO — invalid if a persistent, anomalous easterly wave or significant cold-frontal passage is projected within 72 hours of May 10.
GFS/ECMWF 00z ensembles target 86-88°F. Persistent sea breeze advection limits further rise, yet still above 85°F. Climatology for MIA mid-May supports this. 90% NO — invalid if 12z model runs shift 2F lower.
