Flying Through the Center of a Trough Should Have Been Uneventful

A combination of weather and decision-making leads to a flight narrative worth sharing.

Thursday, April 25, 2024 at 09:50 AM ET

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FLYING contributor Scott Dennstaedt says he learned some valuable lessons on a memorable 2006 flight from the right-hand seat. [iStock]

Key Takeaways:

A return flight from New Jersey to South Carolina encountered severe weather, including clear icing and continuous severe turbulence, primarily due to a developing low-pressure system and a sub-optimal "eastern" route choice.
The severe chop experienced was identified as significant vertical speed and directional wind shear within an unstable air mass, rather than an embedded thunderstorm, necessitating an urgent diversion to Richmond.
Detailed post-flight weather analysis (Skew-T log (p) diagram) explained the turbulence and allowed the flight to safely continue at a lower, smooth altitude, below the turbulent layer.
The key lesson learned was the critical importance of meticulous pre-flight weather analysis and the willingness to proactively negotiate alternative, safer routes with air traffic control.

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Over the last 25 years, I have been asked to speak on various aviation weather topics at dozens of aviation events and gatherings.

During these events, it’s quite common for a pilot to walk up and ask me about how I handled my most challenging flight as it relates to weather. Maybe they were expecting to hear something juicy; I don’t know. While I don’t want to disappoint them about a harrowing recount of one of my prior flights, my response is usually the same. I don’t have such a story since I am always diligent about minimizing my exposure to adverse weather when I am the pilot in command (PIC).