Keep each measurement with its units, observation time, location, altitude, instrument, and data source.
Record map projection, legend, contour interval, timestamp, time zone, and valid forecast period when they affect the answer.
Separate an observation, model output, forecast, and explanation. Each item has different evidence and uncertainty.
Use this review prompt: Which measured pattern supports this atmospheric process?
Use this review prompt: How could scale, observation time, or model assumptions change this interpretation?
Analyse full data separately. Short cards do not replace calculations, chart analysis, official forecasts, or weather warnings.