the dew point must be above freezing, the minimum temperature must fall to freezing or below, dew must form and then freeze.
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Suppose it is a winter night and at about 10 PM, the air cools to the dew point temperature and a thick radiation fog develops. If the air continues to cool during the night, in 5 hours the dew point temperature will probably:
the dew point is at or below freezing. When the air temperature cools to the dew point and further cooling occurs (water vapor can change directly to ice without becoming a liquid first, a process called deposition).
On a cold winter morning, the air near the surface is full of smoke particles. If fog should form in this air, it will probably be ________ fog that forms in cleaner air.
On a clear night, the minimum temperature drops to 34°F. The following night, fog forms early in the evening. It is a good bet the minimum temperature will not be as low because of the:
absorption of infrared energy by the water vapor and fog droplets and the release of latent heat during condensation.
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Along an irregular coastline, advection fog is more likely to form at the headlands than at the beaches because of the ______ surface winds and ______ air.
If fog is forming at Denver, Colorado, and the wind is blowing from the east, then the fog is most likely:
The use of helicopters to mix air and disperse radiation fog at airports is effective provided that:
On a cold, calm autumn morning, the formation of fog above a relatively warm lake would most likely be:
At which city might you be able to observe cirrus clouds at an altitude of 3,000 m (10,000 feet) about the surface?
Which of the following cloud types would be found at the highest elevation above the earth"s surface?
When viewed from the surface, the smallest individual cloud elements (puffs) are observed with which cloud?