Forecasting the Forecasters: How Hierarchical LLM Meteorologists Rewrite Weather Reasoning
Opening — Why this matters now Weather forecasting is an old science trapped inside a modern data problem. Models have grown sharper, deeper, and—thanks to foundation models—extravagantly powerful. Yet the final mile remains embarrassingly analog: humans squinting at dense hourly tables and issuing forecasts that sound authoritative but rarely reveal their reasoning. In an era where LLMs increasingly serve as front-line communicators in energy management, logistics, and emergency response, the question becomes more pressing: can we trust an AI-generated weather narrative if we cannot trace how it’s built? ...