The Cross-Winds Rule
When upper and lower winds are moving at right-angles, a major weather change is imminent. Look at the low and high clouds in the time…
When upper and lower winds are moving at right-angles, a major weather change is imminent. Look at the low and high clouds in the time…
My thanks to a helicopter pilot for this fascinating email and for permission to share it. And for adding the ‘ptarmigan altimeter’ to my collection!…
The tops of trees or other fixed objects in the middle distance make it easier to gauge the effect of the wind on clouds or…