It's an insanely complex, coupled system full of turbulence, so that "theoretically" is doing some heavy lifting. The best models now need to be run on supercomputers, despite scores of scientists and software people constantly trying to find further optimizations for the algorithms. AI isn't going to better discriminate signal from noise when the biggest constraint on the existing S/N ratio is the lack of suffiicient compute resource.

Furthermore, unless the AI does explainability, which it almost certainly doesn't, nobody's going to use its output in life-and-limb-critical applications like first responders, defense, even road gritting.