NVIDIA Earth-2: Open Models for 15-Day Forecasts and Severe Storm Nowcasting
Introduction TL;DR: NVIDIA Earth-2 is an open “weather AI stack” spanning data assimilation (HealDA), medium-range forecasting (Atlas), and nowcasting (StormScope), supported by Earth2Studio and PhysicsNeMo. NVIDIA Earth-2 appears designed to lower time-to-PoC for meteorology services and decision-heavy industries (insurance, energy) by shipping models and workflow tooling together. Why it matters: Weather AI adoption fails less on model quality and more on reproducibility, licensing, validation, and operational controls. What NVIDIA released in the Earth-2 family Three model lines: Atlas, StormScope, HealDA Earth-2 Medium Range (Atlas) targets global 15-day forecasts and 70+ variables. Earth-2 Nowcasting (StormScope) targets kilometer-scale severe weather prediction over 0–6 hours. Earth-2 Global Data Assimilation (HealDA) is positioned to generate initial conditions for forecasting workflows. Open tooling: Earth2Studio and PhysicsNeMo Earth2Studio is a Python package for building inference pipelines; docs warn that base installs may not cover all optional capabilities. PhysicsNeMo is positioned as the open framework for training/fine-tuning. Why it matters: Shipping the stack (not just a model) is what enables real integration into risk and operations pipelines. ...