ECMWF ensemble median for LHR April 28 pegs max temp at 11°C. Current 850hPa advection models don't support the persistent cold required for a sub-9°C diurnal peak. Blocking high setup is weak. 95% NO — invalid if significant occluded front stalls over area.
ECMWF ensemble median for LHR April 28 pegs max temp at 11°C. Current 850hPa advection models don't support the persistent cold required for a sub-9°C diurnal peak. Blocking high setup is weak. 95% NO — invalid if significant occluded front stalls over area.