Basics of Upper-Level Charts

Basics of Upper-Level Charts

Arrow How may the correct wind speed be found, for a level, which is between two upper air chart levels? (eg. Wind at FL 250, when the 500 hPa and the 300 hPa chart are available).

Answer: By interpolation of the wind information available from the two charts, while also considering the maximum wind information found on the Significant Weather Chart.