Recent forecasts from the National Meteorological Center and global ensembles project Shenzhen's August 11 maximum near 35–36°C under a subtropical ridge with light southerly flow, limited initial cloud cover, and urban heat island amplification that routinely adds 1–2°C to regional baselines. High humidity near 80% and scattered thunderstorm development later in the day introduce key uncertainty, as earlier or heavier precipitation could cap readings at 34°C while clearer conditions push toward 37°C. This narrow spread, against typical August climatology of 32–33°C highs, explains the tight 33.5% and 31% market shares for the leading outcomes, with traders monitoring updated model runs for shifts in timing and coverage.