Why should forecast issue time be stored?
It establishes which information the operator could have used when making a decision. Forecasts change as observations arrive, so showing only the latest version can distort retrospective evaluation. Preserve issue time, valid time, location, variable and model version alongside the decision and its eventual outcome.
Answered in
WeatherNext 3: Better Forecasts Still Need Better Decision RulesHourly AI forecasts can improve operations only when teams evaluate local errors, uncertainty and the cost of acting on the wrong prediction.
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