Ongoing heatwave conditions driven by the North Pacific High are sustaining elevated temperatures across southeastern South Korea, with Busan under the Korea Meteorological Administration's highest-level heat alerts. Warm, humid southerly flows and minimal cloud cover favor daytime maxima near or above 35°C through early August, though coastal sea breezes may temper peaks relative to inland sites. Recent observations show Busan reaching 39°C on August 1 amid the same pattern, while nearby Yangsan hit a record 42.5°C, underscoring model spread in boundary-layer mixing and moisture advection that differentiates trader-implied probabilities clustered around 35–37°C. KMA short-range updates and ensemble guidance will refine land-sea interaction and any diurnal cloud development ahead of the August 7 resolution.