Microsoft Releases PBC, an Open-Source Weather Forecast Correction Tool
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On October 15, 2026, according to The Verge, Microsoft researchers released a machine learning tool called Probabilistic Bias Correction (PBC). The tool improves the accuracy of two-to-six-week medium- and long-range forecasts by correcting systematic biases in existing weather models. The related paper was published in Nature, and the tool is open source. This is the first report on the event, with no follow-up developments disclosed yet.
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- The Verge · AIMicrosoft has a new machine learning tool to improve weather forecasts
Microsoft researchers released Probabilistic Bias Correction (PBC), a machine learning tool that improves the accuracy of two-to-six-week forecasts by correcting systematic biases in existing weather models. The paper was published in Nature and the tool is open source.
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