Contents 
Abstract 4 
Zusammenfassung 4 
1 Introduction 5 
2 Available direct model output from the DWD-BSH model chain 7 
3 Model output statistics MOS 8 
3.1 Most important groups of predictors 8 
3.2 Predictands 9 
4 Development results 11 
5 Verification of 6 1 /2-months’ operational forecasts 16 
6 Summary 18 
Acknowledgment 18 
References 19