For current operational use, one should combine the physical principles of TN 203 with modern NWP output, but the mental framework — especially the separation of lift mechanisms and the emphasis on the convective boundary layer — is timeless.
Produced by wind deflected upwards by a mountain or hill. For current operational use, one should combine the
If you need a specific extract, figure description, or comparison with modern soaring forecast guidelines, let me know. For current operational use