What minimum distance should exist between intense radar echoes before any attempt is made to fly between thunderstorms?

The correct answer establishes that a minimum distance of 40 miles should exist between intense radar echoes when planning to fly between thunderstorms. This guideline is important due to the nature of thunderstorms, which can produce severe turbulence, lightning, and sudden wind shifts. Staying at least 40 miles away from radar echoes associated with thunderstorms reduces the risk of encountering hazardous conditions that can arise in the vicinity of storm cells.

By maintaining this distance, pilots are better able to avoid the effects of severe weather phenomena that typically occur near thunderstorms, such as downdrafts, updrafts, and hail. It is crucial for flight safety and is a recommended standard within aviation procedures. The specified distance of 40 miles allows pilots to navigate safely while still maintaining situational awareness and minimizing the chances of turbulence or other adverse weather impacts.