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Weather and climate · Discover & try

What can a cloud's shape tell us?

Reading level 2 of 5 · DevelopingChange
1 · Shorter sentences5 · More detail

Match four cloud names to four shapes. Cumulus has separate rounded puffs; stratus forms a broad, low layer. Cirrus makes feather-like strands high in the sky. Cumulonimbus rises into a tall tower with a spreading top. Use the picture guide for help.

Word help
cumulus

A cloud with distinct rounded heaps or puffs.

stratus

A low cloud spread in a fairly even layer.

cirrus

A high cloud with thin, icy strands.

cumulonimbus

A tall thunderstorm cloud, often topped by an anvil.

Learn four cloud shapes

Start with these labelled examples. Compare the shape, then use this guide to match a photograph in the activity.

Separate white clouds with rounded tops over a blue sea.

Cumulus

Separate puffs with rounded tops.

NOAA Photo Library.

A broad low cloud layer above a dark tree line.

Stratus

A broad, low blanket or sheet.

NOAA Photo Library, National Weather Service Collection. Photograph: Ralph F. Kresge.

Fine white strands cross blue sky above trees.

Cirrus

Thin, feather-like wisps high in the sky.

NOAA Photo Library, National Weather Service Collection. Photograph: Captain Albert E. Theberge Jr., NOAA Corps (ret.).

A tall cloud tower spreads into a broad, flattened anvil top.

Cumulonimbus

A tall tower with a wide, flat top called an anvil.

NOAA Photo Library.

Four examples, not every cloud type. Photo sources and credits · NOAA image-use information.

Watch · Try · Explain

See how it works

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Real NOAA cloud photographs; shape clues do not provide a local forecast.

What to look for
  • Separate puffs or a broad layer
  • Fine wisps or a tower
  • The labelled picture matching your clue
Explain what you noticed

Which clue best matches cirrus?

Keep this idea: Compare cloud shapes; a photograph is not a local forecast.

Follow the sources

Source material checked 2026-10-28. Explanations and activities by Nepedia. Agency source links do not imply endorsement.

Keep following the idea

Why does the wind blow?

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