GFS/ECMWF consensus: 850hPa temps +18C. Strong WAA under H5 ridge drives SFC highs to 75°F. Optimal radiative forcing. 90% YES — invalid if overnight convection occurs.
GFS/ECMWF consensus: 850hPa temps +18C. Strong WAA under H5 ridge drives SFC highs to 75°F. Optimal radiative forcing. 90% YES — invalid if overnight convection occurs.