Final answer:
High winds in the mountains of southern BC are most commonly expected along the ridges of the mountains due to topographical effects on wind patterns, including the acceleration of air over mountain ridges and the rain shadow effect, which can lead to faster winds on the leeward slopes.
Step-by-step explanation:
In the mountains of southern BC, you would expect high winds along the ridges of the mountains. Mountains affect wind patterns significantly, often accelerating winds as they are funneled over and around peaks and ridges. This is due to the fact that as air is forced over a mountain range, it cools, creating a lower pressure on the leeward side, which in turn can cause the wind to move faster in these areas.
Additionally, the phenomenon known as the rain shadow effect, which occurs with mountain ranges such as the Rwenzori Mountains or the Southern Alps mentioned earlier, also contributes to the wind patterns on the leeward side of a mountain. The westerly winds, after dropping their moisture on the windward side, become dry and warm, which can cause them to pick up speed as they descend down the leeward slopes, contributing to higher wind speeds in these areas.
Therefore, while you can experience winds at all the locations mentioned, the ridges of the mountains are typically where one would expect the strongest and most consistent winds due to these topographical and meteorological factors.