Exam 5: Condensation: Dew, Fog, and Clouds

Radiation fog typically forms on ____.

The most common form of high cloud, these are thin, wispy clouds blown by high winds into long streamers.

Advection fog is often observed along the Pacific coast during summer, as westerly winds carry moist air toward the shore. The fog forms because the surface water near the coast is ____ the surface water farther offshore.

The dew point is the temperature at which ____.

Aside from cumulonimbus clouds that sometimes penetrate into the stratosphere, all clouds are observed in the lower atmosphere.

Suppose two ocean currents with different temperatures are flowing next to one another. If the wind blows perpendicular to the currents, we would expect to find ____.

As the air cools during the night, the relative humidity increases. When the relative humidity reaches about 75 percent, condensation may begin on the most active hygroscopic nuclei, producing a ____________________ haze .

Which region of the United States is particularly prone to advection fog?

List the major height categories of clouds. What differences might you expect to find in clouds that form at these different levels?

Satellite images provide detailed information on cloud ____________________ and ____________________.

Identify the positive and negative aspects of fog.

On a cold, winter morning, the most likely place for radiation fog to form is ____.

A layer of dust or salt particles suspended above a region is called ____________________.

Jet aircraft flying at high altitudes often produce a cirrus-like trail of condensed vapor called a condensation trail or ____________________.

Wet haze restricts visibility more than dry haze.

Cumulonimbus clouds are associated with more or less continuously falling rain or snow.

The fog that forms along the Pacific coastline of North America is mainly of which type?

Condensation nuclei may be made up of salt from the ocean.

When radiation fog "burns off," the fog tends to dissipate ____.

Thick clouds of this type can be used to predict rain or snow within 12 to 24 hours because they often appear ahead of an advancing cyclonic storm.