Santa Ana

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A hot, dry, easterly wind that affects the Los Angeles region of southern California, named after the valley through which the main flow occurs, and which acts to intensify it as a mountain-gap wind. The wind originates over the dry interior plateau, and its temperature and desiccating effects are increased by adiabatic heating during its descent, as with a föhn wind.

Subjects: Environmental Science — Meteorology and Climatology.

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