What minimum distance should be maintained from convective cells when flying between 10,000 and 25,000 feet?

• A. 15 miles
• B. 10 miles
• C. 5 miles
• D. 20 miles

Answer: (B)

The main idea is weather avoidance—keeping a safe lateral buffer from convective cells to minimize exposure to turbulence, hail, and wind shear when cruising in this altitude range.

Ten miles provides the minimum practical gap to ensure you have time to see the cell on radar or by sight, and to maneuver around it if needed. It balances safety with efficiency: a smaller distance could leave too little room to react to cell motion or growth, while larger distances exceed the minimum required by the standard guidance. In practice you still rely on radar, reports, and ATC to adjust spacing if a storm is active or presents stronger hazards.