Cloud Altitude
Cloud Names
Rain and Snow
Frost and Urban Weather
Fog and Mist
100

What altitude is a Stratocumulus cloud?

Low

100

What does "nimbus" mean?

Rain

100

What shape do raindrops actually have? (Not teardrops)

Spherical or button-shaped

100

What character do old folk stories talk about? He creeps up and paints patterns on windows.

Jack Frost

100

Dense, ground-level clouds are called fog, while less dense clouds are called ______.

Mist

200

What level is a Cirrostratus Cloud?

High

200

Which clouds have a castle battlement appearance?

Stratocumulus Castellanus

200

How many kinds of snowflakes have scientist identified?

80

200

Which level of the atmosphere is Ozone found in?

Stratosphere

200

Smoke + Fog =

Smog

300

What level is an Altocumulus cloud?

Mid level

300

Which are the fastest moving clouds?

Cirrus Uncinus

300

How cold does the air need to be for clouds to drop crisp snow?

35.6oF (2oC)

300

How much warmer is New York city than its surrounding countryside?

7oF (4oC)

300

If you filled and olympic-sized swimming pool with fog and then condensed it, you would have ___ pints (__ liters) of water

2 pints (1.25 liters)

400

What is the maximum height that a low-level cloud can be? (Where the medium clouds would begin)

6,500 ft

400

Which is the ultimate gloomy day cloud? It spreads its dark gray mass across the sky. Often brings rain or snow.

Nimbostratus

400

A single big cloud can hold more than _____ tons of water. (About one fifth of the water in an olympic-sized pool.)

550

400

If the air is wet, moisture condenses first, then freezes like a glass. Covering twigs like a popsicle. When a very chilly, wet wind blows and the moisture becomes supercooled, it can coat surfaces with thick ice called ______, especially on the windward side.

Rime

400

To how many feet does fog reduce visibility?

Less than 3,000 ft

500

How high up must a cloud be to be considered "high-level cloud?"

Above 3 miles high

500

Which cloud is also called the "scarf" or "cap" cloud?

Pileus

500

What is a polar vortex?

A giant spiral of air that flows counterclockwise around the North Pole and helps keep cold air around the pole.

500

This type of frost forms when moisture freezes without condensing first, creating tiny glistening white needles or spicules of ice. It gets its name from an old word for "ancient," because the spikes of ice look like bristles in an old man's beard.

Hoarfrost

500

This type of fog is especially common in the fall, when the air is still full of moisture from the summer, but temperatures can plummet at night. After sunset on a cold, clear, calm evening, the land radiates its heat into the atmosphere.

Radiation Fog