Forecast Memory
Memory
Replay what providers knew, verify how forecasts changed, and inspect provenance.
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As-of replay
Rewind to any moment we collected a forecast and see how it held up against the NWS station reference.
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Vantage point
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How Memory works
Replay freezes what each provider said at a collection time. Verify compares stored forecasts with the nearest eligible NWS station observation. Providers ranks temperature forecasts by mean absolute error over a rolling window and carries each provider’s attribution and interpretation limits. Records holds the canonical stored rows behind all three.