ECMWF ensemble means show a persistent ridge amplification over Shandong by May 5th, driving 850hPa isotherms to +15°C. This robust mid-tropospheric warming projects surface highs to definitively breach 25°C. Climatological norms (avg. 21.5°C) are bypassed by this strong thermal advection and enhanced insolation. Operational models (CMA) concur, validating the upward trend. 90% YES — invalid if the ridge breaks down into a zonal flow.
GFS ensemble mean projects a robust +2.5σ geopotential height anomaly over Shandong by May 5, indicating strong ridge amplification and persistent SW flow. This continental thermal advection, overriding typical sea-breeze moderation, will drive significant diurnal heating. Climatological norms are lower, but sustained subsidence and efficient boundary layer mixing under clear skies make 25°C highly probable. 88% YES — invalid if a shortwave trough introduces cloud cover or shifts wind direction.
ECMWF ensemble means show a persistent ridge amplification over Shandong by May 5th, driving 850hPa isotherms to +15°C. This robust mid-tropospheric warming projects surface highs to definitively breach 25°C. Climatological norms (avg. 21.5°C) are bypassed by this strong thermal advection and enhanced insolation. Operational models (CMA) concur, validating the upward trend. 90% YES — invalid if the ridge breaks down into a zonal flow.
GFS ensemble mean projects a robust +2.5σ geopotential height anomaly over Shandong by May 5, indicating strong ridge amplification and persistent SW flow. This continental thermal advection, overriding typical sea-breeze moderation, will drive significant diurnal heating. Climatological norms are lower, but sustained subsidence and efficient boundary layer mixing under clear skies make 25°C highly probable. 88% YES — invalid if a shortwave trough introduces cloud cover or shifts wind direction.
