How does topography affect the weather?

When you were in school, you may have learned about topography and then quickly forgot it. Topography is the study of land features, like mountains, creeks, and hills. It plays a big role in weather patterns and impacts things like heat and afternoon storms. First, let's define what topography is. According to the Oxford dictionary, topography is the arrangement of different natural or man-made features in an area. For example, a lake or a building are both considered to be topography.

[NillWill]

Can topographical weather influences be over ridden by weather modification?