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Flashcards in Met - Cloud Formation Deck (20)
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1

Cumuliform clouds are ..... than the environment

warmer

1

What 3 places does convergence take place .....

1. The equatorial trough

2. It occurs in lows

3. Happens in the sub polar low

2

Cumuliform clouds are most likely to develop when .....

there is latitude heating of fast moving cold moist air

3

Describe how frontal uplift produces clouds ......

1. When cold air meets warm air the colder air remains at the surface

2. Since the cold air pushes the warm air up this creates clouds

* The boundary between the 2 layers is known as the front

3

Describe how turbulence in the lower levels can produce clouds .....

Turbulence in the lower levels caused by surface friction can produce clouds at the top of the layer of turbulence.

Sc often forms at the top of this layer

3

which type of cloud is associated with low ceilings and reduced vis .....

NS

4

Define convection .....

Clouds form if the ELR allows warm air to rise until the dew point temp is reached

5

What 3 things cause stratiform clouds .....

1. Convergence

2. Orographic uplift

3. Frontal uplift

7

What are the 6 ways that clouds form .....

1. Convection

2. Orographic Uplift

3. Frontal Uplift

4. Convergence

5. Turbulence

6. Latitude Heating

7

If humid air is forced to rise over a mountain range it expands and cools as it rises forming clouds. This is known as .....

Orographic uplift

9

When 2 air streams meet at the surface what happens .....

they are pushed up and clouds are produced as a result of convergence

11

What type of cloud formation is never formed by convection ......

Stratiform clouds are never formed by convection

12

Which cloud type is turbulence in the surface layer most likely to produce .....

SC

13

What is the most common way for cumuliform clouds to form .....

rising air being cooled by expansion

14

The most likely cause of turbulence on a hot day is .....

thermal activity

15

What type of cloud is most likely to produce virga ....

thin As

17

Latitude heating of a cold air stream will produce .....

Instability and possibly thinderstorms

18

Stratiform cloud temperature is ..... than the environment

equal to or cooler

19

What 2 things determins what type of cloud is formed .....

1. The temperature in the cloud

2. The surrounding temperature

20

Describe how latitude heating produces clouds .....

1. Cold air moves north

2. The temp difference between the warm surface and cold tops create strong convection

3. There is no solar heating involved

4. Cu are produced which can lead to Cbs