What climatic and landform processes cause orographic rainfall to ...

[jrubin]

What climatic and landform processes cause orographic rainfall to occur as compared to the processes that cause the rain shadow effect in certain areas of the American West?
 
  What will be an ideal response?

Question 2

What major mountain ranges are located in the Pacific Northwest?
 
  What will be an ideal response?

[covalentbond]

Answer to Question 1

Orographic rainfall occurs on the windward side of mountains (generally the western side), where, as air masses are forced upwards, they cool and can no longer hold as much moisture. Rain shadows generally exist on the leeward side of mountains where air masses tend to be dry and warm as they descend.

Answer to Question 2

The Coast Mountains and the Cascade Range.

[jrubin]

Both answers were spot on, thank you once again

[covalentbond]

Great! Please up vote