What is an indication of high turbulence in relation to microumrbs?

High turbulence, particularly in relation to microumrb (micro-scale wind systems), can be indicated by a sudden gain in performance followed by a loss. This phenomenon occurs due to the unpredictable and rapidly changing conditions associated with turbulent air. When an aircraft experiences a sudden increase in lift or speed, it is often a result of temporarily rising into a pocket of more favorable air. However, this is frequently followed by a quick loss of altitude or performance as the aircraft exits that favorable air and re-enters less stable or more turbulent conditions. This kind of performance fluctuation is characteristic of turbulence caused by microumrb, where the variations in wind strength and direction can be quite drastic and brief.

In contrast, a steady ascent without changes, predictable wind direction, and continuous calm winds would suggest stable atmospheric conditions, indicating low turbulence rather than high. Such consistent conditions are usually the opposite of what is expected when turbulence is present, highlighting why the correct choice reflects the nature of turbulence associated with microumrb.