S4 – Weather Unit Image copyright Joseph Kerski

We will learn about different types of clouds Image copyright Geoff Jenkins

All images copyright Geoff Jenkins

Thin wispy high clouds Image copyright RMetS Cirrus

High, small, puffy and patchy Image copyright RMetS Cirrocumulus

Tall, fluffy angry looking grey clouds Image copyright RMetS Cumulonimbus

Medium height, small puffy clouds, patchy lines Image copyright RMetS Altocumulus

Thin and uniform Image copyright RMetS Altostratus

Low, puffy and piled up Image copyright RMetS Cumulus

Uniform, thin to thick layered clouds, ill-defined Image copyright RMetS Stratus

Broad and flat on the bottom, puffy on top Image copyright RMetS Stratocumulus

Clouds Cirro- given to high altitude clouds- means wispy - like hair. Alto- given to mid-altitude clouds- means high. Nimbo (prefix) or nimbus (suffix)- is used for clouds that bring rain. Cumulo- means heap and refer to piles of clouds. Stratus- means layer and refers to flat wide layered clouds. Image copyright Sylvia Knight Learn

1 Image copyright RMetS

What does the term nimbus refer to when used to describe clouds? 2 What does the term nimbus refer to when used to describe clouds?

3 Image copyright RMetS

What does the term cirro mean? 4 What does the term cirro mean?

5 Image copyright RMetS

The term cirro is usually given to clouds of high or low altitude? 6 The term cirro is usually given to clouds of high or low altitude?

7 Image copyright RMetS

Which term means heap when referring to clouds? 8 Which term means heap when referring to clouds?

9 Image copyright RMetS

Layers of clouds are given the name… 10 Layers of clouds are given the name…

Answers Image copyright Andy Cutcher

1 Cirrus

What does the term nimbus refer to when used to describe clouds? 2 What does the term nimbus refer to when used to describe clouds? Rain

3 Cumulonimbus

What does the term cirro mean? 4 What does the term cirro mean? Wispy or delicate

5 Cirrus

The term cirro is usually given to clouds of high or low altitude? 6 The term cirro is usually given to clouds of high or low altitude? High

7 Cumulus

Which term means heap when referring to clouds? 8 Which term means heap when referring to clouds? Cumulus

10 Stratus

Layers of clouds are given the name… 10 Layers of clouds are given the name… Strato- or stratus

Draw a weather circle with the following information: POST IT Draw a weather circle with the following information: Cloud cover: 3 Oktas Wind direction: South East Wind speed: 15 knots Present weather: drizzle Temperature: 10 °C