Diagpack, idea behind

To be able to analyze some mesoscale features even if it is not possible to keep them in subsequent forecast
How: via detailed analyses of boundary layer fields (high data density at the surface)
Driving signal for processes depending on boundary layer (e.g. convection, phase of precipitation……...)
Relying on the model forecast for upper-air

To be able to analyze some mesoscale features even if it is not possible to keep them in subsequent forecast