Stratus Clouds

Stratus clouds are low-level clouds that form in a uniform layer, covering the sky like a blanket. They are often gray or white in appearance, and can bring light precipitation such as drizzle or light snow.

Formation

Stratus clouds form when moist air is lifted gently, causing it to cool and condense into a layer of clouds. This lifting can occur due to converging air masses, or when air is forced to rise over elevated terrain.

Characteristics

• Low-level clouds
• Uniform, layered appearance
• Can bring light precipitation
• Often cover the entire sky

Effects on Weather

Stratus clouds are associated with overcast conditions and can lead to periods of extended cloudiness and drizzly weather. They are often seen in stable atmospheric conditions and can persist for long periods of time.

Observation and Identification

Stratus clouds can be observed by their flat, featureless appearance that often covers the entire sky. They are typically found at low altitudes and can be mistaken for fog when they form at ground level.

Study Guide Questions

1. What are stratus clouds and how do they form?
2. What type of weather is associated with stratus clouds?
3. How can you identify stratus clouds in the sky?
4. Where are stratus clouds typically found in the atmosphere?
5. What are the characteristics of stratus clouds?