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Opinion / analysisTraining & Scaling · Large Language Models · Efficiency & Inference1 source · Aug 6, 2026

WeatherNext: AI model achieves breakthrough in forecasting cyclones

Our model uses Functional Generative Networks (FGNs) to efficiently produce ensembles of different predictions, which captures the inherent uncertainty of the weather.

Key points

  • We can now generate a single 15-day forecast in less than a minute on a TPU, empowering forecasters to quickly evaluate the probability distribution of potentially devastating tail-risks.
  • However, WeatherNext Cyclones only needs data with a resolution of 28x28km, 100x coarser than traditional models.
  • Opening up WeatherNext to the research community
  • We are also releasing two sets of similar models: WeatherNext Cyclones, which ran during the hurricane season (results can be seen in the paper); and WeatherNext 2, a later update that we operationalized in October.

Sources (1)

  • [1]WeatherNext: AI model achieves breakthrough in forecasting cyclones
    Google DeepMind Blog · Aug 6, 03:06 PM
    Our model uses Functional Generative Networks (FGNs) to efficiently produce ensembles of different predictions, which captures the inherent uncertainty of the weather.
    We can now generate a single 15-day forecast in less than a minute on a TPU, empowering forecasters to quickly evaluate the probability distribution of potentially devastating tail-risks.

Extractive summary: sentences quoted from the sources.

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