Indicated Airspeed Weather Wind Shear 
Air
MAY 21, 2025
Wind Shear: The Abrupt Shift Wind shear refers to any abrupt divergence in wind characteristics be it speed, direction, or both that unfolds over a minimal distance. Can cause sudden losses or gains in indicated airspeed (IAS), directly affecting lift. And it’s unique in Europe!
Air Facts
OCTOBER 14, 2024
Flying to Oklahoma from New Jersey in my G36 Bonanza, I once encountered a mountain wave where the indicated airspeed changed from 92 knots to 164 knots without a single bump. I looked at the airspeed and it was jumping +/-5-10 knots. Ah, a wind shear and a lot worse was going to mess with our landing.
Chess In the Air
JUNE 24, 2022
He frequently hosted visiting pilots, providing them with detailed briefings of the area and the weather. The CAPE index, a measure of convective energy and instability, was below 100 joules, indicating a very low probability of severe weather or thunderstorms. Boundary layer winds were moderate at 10-20 kt out of the WNW.
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