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Fog over a bridge.
Which combination of atmospheric conditions created this weather over the Golden Gate Bridge in San Francisco?
high humidity, warm air temperature, and low air pressure
high humidity, cold air temperature, and high air pressure
low humidity, cold air temperature, and low air pressure
low humidity, warm air temperature, and high air pressure
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high humidity, cold air temperature, and high air pressure.
Explanation: San Francisco fog is usually advection/marine-layer fog — moist air (high humidity) is advected over the cold Pacific and cooled to its dew point, producing fog. The offshore high pressure and stable layer favor a cool, trapped marine layer that creates persistent fog over the Golden Gate.
Explanation: San Francisco fog is usually advection/marine-layer fog — moist air (high humidity) is advected over the cold Pacific and cooled to its dew point, producing fog. The offshore high pressure and stable layer favor a cool, trapped marine layer that creates persistent fog over the Golden Gate.
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