The weather forecast says there will be a typhoon. Is it true?

The weather forecast says that the big typhoon must be true. However, after the typhoon is generated, it often changes its path due to various factors during its movement.

The weather forecast is broadcast from the generation of typhoon, and the predicted typhoon moving path often has errors with the actual moving direction of the last typhoon.

So typhoons actually exist, but they may have gone to other places.