A Beginner's Guide to Cloud Watching
Have you ever looked up at the sky and seen a dragon, a ship, or a floating castle? This interactive guide will help you understand what you're seeing up there.
Getting Started: The Basics
Here's what you need to begin your cloud watching adventure. This section provides the fundamental tips from the guide, laid out for quick reference.
What You Need
Just your eyes and a bit of time! A picnic blanket and a comfortable spot to lie down are optional but nice additions for a relaxing session.
When to Go
Any time is good, but mid-afternoon often has the most dramatic clouds. Sunrise and sunset are fantastic for seeing spectacular colors.
Where to Go
Find an open space away from tall buildings, like a park, a field, or your own backyard, so you can get a wide, unobstructed view of the sky.
Interactive Cloud Explorer
Explore the main types of clouds below. Scientists classify them by altitude, but you can use the filters to explore them however you like. Click a button to see all clouds in that category.
Cirrus
(Sear-us)
Looks like: Thin, feathery, and delicate, like wisps of hair.
Means: Fair weather for now, but can signal an approaching change.
Cirrocumulus
(Sear-o-kyu-myu-lus)
Looks like: Small, white, patchy puffs. Sometimes like fish scales ("mackerel sky").
Means: Fair, but cold, weather.
Cirrostratus
(Sear-o-strah-tus)
Looks like: A very thin, see-through white sheet. Famous for creating a "halo" around the sun or moon.
Means: Rain or snow is likely on the way in 12-24 hours.
Altocumulus
(Al-to-kyu-myu-lus)
Looks like: White or grayish-white patches and rolls, like "sheep's wool" or a lumpy blanket.
Means: Fair weather, but can signal later thunderstorms on warm mornings.
Altostratus
(Al-to-strah-tus)
Looks like: A grayish or blue-gray sheet. The sun is often visible but looks like it's behind "ground glass."
Means: Often forms ahead of a storm with steady rain or snow.
Stratus
(Strah-tus)
Looks like: A flat, gray, featureless sheet, like fog that hasn't reached the ground.
Means: A gloomy, overcast day. Can produce light drizzle or flurries.
Stratocumulus
(Strah-to-kyu-myu-lus)
Looks like: Lumpy, gray or whitish patches with blue sky visible in between.
Means: Usually fair weather, but they are the classic "gloomy day" cloud.
Nimbostratus
(Nim-bo-strah-tus)
Looks like: A thick, dark, and flat-looking gray cloud.
Means: This is a rain cloud! It brings steady, widespread rain or snow.
Cumulus
(Kyu-myu-lus)
Looks like: The classic! Detached, puffy, white clouds with flat bases. Like floating cotton balls.
Means: These are "fair weather" clouds. Seeing them means it's a beautiful day.
Cumulonimbus
(Kyu-myu-lo-nim-bus)
Looks like: The "King of Clouds." Giant, towering clouds with a dark base and a top that spreads out in a flat "anvil" shape.
Means: This is a thunderstorm cloud. Brings heavy rain, lightning, hail, and wind.
The Imagination Station
This is the most fun part of cloud watching! The science is great, but letting your imagination take over is just as important. Here are some tips on how to find shapes in the clouds.
- Let your eyes relax and just gaze at a patch of sky without trying too hard.
- Don't force it. Let a shape "pop out" at you, just like finding a shape in a pattern.
- What do you see? A dragon? A face? A map of a new country? A giant boat?
- Watch the story unfold. Clouds are always moving and changing. That dragon might slowly stretch out and turn into a long, thin rabbit.
Have fun looking up!