Why don't they...
.... just issue the inter/tempo/FM without the requirement for the pilot to then change the issued forecast periods and apply the 30' buffer / and or change the FM to a new time if deemed an improvement or deterioration etc etc. It's not calculus but why are we taking it to the next mathematical step?
A forecast should be issued and read and any operational application made in our planning... end of story. Spend your extra time digesting the info not doing a Sudoku puzzle.
Why don't they... ... issue TTFs at locations that have a BoM and BoMologists?
Why DO WE lose the continual TAF coverage at many locations when some of us have to keep working?