Windshear Flashcards
Which weather phenomena has the most horizontal windshear component
Thunderstorm
Low-level windshear
Windshear along the final approach prior to landing and takeoff/inital climb-out
Turbulence is caused by
eddy currents within the atmospohere
A typical windshear example when the gorund wind is calm
The windshear accurs at the shear line, and we can expect higher wind speeds above it
Increasing headwind in an approach will
overshoot. The path is higher and indicated airspeed increased
Decreasing tailwind in approach will
overshoot, path is higher and airspeed increased
From a tailwind to headwind
overshoot
Updraft will cause
overshoot
An overshoot is flying above the desired flightpath and/ or ______ in airspeed
Increase
Decreasing headwind will cause
undershoot
Increasing tialwind will cause
undershoot
From a headwind to tailwind
undershoot
into a downdraft
Undershoot
Windshear reversal effect
When a wind changes from head/tail to the opposite direction. Will cause an undershoot followed by overshoot, or vice versa
Causes of windshear
Thunderstorms, CB clouds, cumulus clouds, low-level jet streams, fronts, themral activity, sea breezes
