picturethat.cloudCloud Atlas
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Everyday skies · feature

Virga

Rain that never lands

Spot it

Wispy trails descending from a cloud but fading before the ground.

How it forms

Precipitation evaporates or sublimates in drier air underneath.

Read the sky

The ground can stay dry even while precipitation falls aloft.

Where to look

Look where a precipitating cloud sits above a relatively dry layer.

Little sky facts

  • Reveal fact 1

    Virga is a precipitation trail.

  • Reveal fact 2

    It disappears before reaching the surface.

  • Reveal fact 3

    Winds can bend its streaks.

  • Reveal fact 4

    Both falling liquid and ice can produce the effect.

Try this

Trace the falling strands like a jellyfish’s tentacles.

Draw your own cloud ↗

Read a little deeper

WMO International Cloud Atlas

Met Office · formation and weather

Conditions described here are places to look, not a global frequency ranking. Use local weather forecasts and warnings for decisions. Never look directly at the Sun.

Next sky story: Shelf clouds →