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Wind Gradients and Turbulence

This document presents four events linked to meteorological phenomena, strong winds at altitude or convective movements associated with cumulonimbus. Although different in nature, these examples have some common points: the sudden deterioration of the conditions, late detection, sometimes inappropriate reactions, lack of information transfer within flight crews (PIREP). Since they are difficult to characterize in flight and meteorological forecasts are often inaccurate, these phenomena can be underestimated and poorly managed. Making those involved more aware, in-flight updating of information allowing for better anticipation and increased vigilance when approaching areas of risk can all help flight crews to avoid or to reduce the effects.

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