ECMWF ensemble guidance for April 29 shows 850hPa temps translating to surface highs consistently in the 14-17°C range for Munich, indicating a significant positive thermal anomaly relative to the 11°C threshold. GFS output reinforces this, projecting persistent warm air advection under a developing high-pressure ridge. The climatological mean for late April also sits above 12°C. This is a clear exceedance signal. 95% YES — invalid if a sudden stratospheric warming event redirects polar vortex dynamics.
ECMWF ensemble guidance for April 29 shows 850hPa temps translating to surface highs consistently in the 14-17°C range for Munich, indicating a significant positive thermal anomaly relative to the 11°C threshold. GFS output reinforces this, projecting persistent warm air advection under a developing high-pressure ridge. The climatological mean for late April also sits above 12°C. This is a clear exceedance signal. 95% YES — invalid if a sudden stratospheric warming event redirects polar vortex dynamics.
