We have very good weather prediction these days. After the Titanic sank and people argued about mandating lifeboats on ships, one of the arguments against was that global shipping had already settled into the least stormy most safe sea routes and accidents where lifeboats might help had reduced year on year because it was already in everyone's interests - cargo sellers, shipping industry, passengers, insurance industry - to make that happen.
We have very good weather prediction for tomorrow. For longer airship trips like spending a few days crossing the Pacific Ocean the exact tracks of storms are harder to predict, and dangerous squalls can brew up with little notice during certain seasons.
