So….to be faaaaaiiiiiiirrrr…..
At southernjets we have an internal turbulence prediction system that was inherited from NWA. Super accurate because of almost 70 years of data that was collected, in and in the old days, manually. The TP data was included in the WX brief, and the each entry described an area or line of expected turbulence, intensity, cause and direction of movement. It also had other weather threats as well, but turbulence was its primary function, and areas of known wave activity were pre designated. Even our Jepp high charts were tailored with the wave areas.
At NWA we had pads of blank “TP charts” that you would sketch the TPs on prior to flight. Even on the DC-9. It was allowable to use the secondary flight plan function in the FMS to sketch them out, rather than drawing.
Fast forward to the merger. They kept the TP system, but not the pads of blank charts, so no real way to jot the information down. So I shrunk an old one down, laminated it and used dry erase mark the TPs. Worked great.
That said, the day the TPs showed up on our EFB weather app was the day my little card got retired.