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From Nowcasting to Forecasting: Adapting a Reanalysis-Trained

arXiv · AI, language, vision and robotics · article · Sep 3, 2026 · UTC

Accurate cloud-cover forecasts are important for temperature prediction, radiation forecasting, and solar-power operations. Short-range forecasting methods can preserve observed cloud placement during the first forecast hours, but their skill decreases when cloud fields evolve through formation, dissipation and deformation. Longer lead times require accounting for atmospheric evolution, but operational numerical weather prediction (NWP) forecasts may not accurately represent the satellite-observed cloud state at initialization. We develop CloudCast v2, a machine-learning model for 12-hour clou

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First collected: 2026-09-21T04:51:57.792Z. This is not the publication date.