A rain shadow is a dry area on the lee back side of a mountainous area. The mountains block the passage of rain-producing weather systems casting a "shadow" of dryness behind them.
As shown by the diagram to the right, the incoming warm and moist air is "pulled" by the prevailing winds towards the top of the mountains where it condenses and precipitates before it crosses the top. The air, without much moisture left, advances behind the mountains creating a dryer side called "rain shadow."
Read more about Rain Shadow: Description, Regions of Notable Rain Shadow
Famous quotes containing the words rain and/or shadow:
“The rain it raineth on the just
And also on the unjust fella;
But chiefly on the just, because
The unjust steals the just’s umbrella.”
—Charles Synge Christopher Bowen (1835–1896)
“Beneath the sun’s rays our shadow is our comrade;
When clouds obscure the sun our shadow flees.
So Fortune’s smiles the fickle crowd pursues,
But swift is gone whenever she veils her face.”
—Ovid (Publius Ovidius Naso)