FernWX Lab Mode is a Research Preview, and can be disabled at any time. New sessions will default to the standard FernWX experience.

Forecast Memory

Memory

Replay what providers knew, verify how forecasts changed, and inspect provenance.

Sign in to use your collected forecast memory. This view uses synthetic or empty examples.
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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.