What causes altocumulus?
Altocumulus clouds usually form by convection in an unstable layer aloft, which may result from the gradual lifting of air in advance of a cold front. The presence of altocumulus clouds on a warm and humid summer morning is commonly followed by thunderstorms later in the day.
What is the characteristic of altocumulus?
Altocumulus (From Latin Altus, “high”, cumulus, “heaped”) is a middle-altitude cloud genus that belongs mainly to the stratocumuliform physical category characterized by globular masses or rolls in layers or patches, the individual elements being larger and darker than those of cirrocumulus and smaller than those of …
What is the difference between cumulus and altocumulus clouds?
Clouds may be altocumulus or cirrocumulus if they form at higher altitudes, while those that form near the ground and remain small are cumulus humilis, or fair-weather cumulus clouds. All have flat bottoms and grow vertically.
How does fog contribute to weather?
Fog commonly produces precipitation in the form of drizzle or very light snow. Drizzle occurs when the humidity of fog attains 100% and the minute cloud droplets begin to coalesce into larger droplets.
Why does it get foggy at night?
This type of fog forms at night under clear skies with calm winds when heat absorbed by the earth’s surface during the day is radiated into space. As the earth’s surface continues to cool, provided a deep enough layer of moist air is present near the ground, the humidity will reach 100% and fog will form.
What is fog in simple words?
Fog is thick mist. It may appear on land or sea and it usually lowers visibility (makes it hard to see very far). When fog forms at high levels it creates a cloud called stratus. When the air chills, moisture will turn to fog. Fog is made up of tiny water droplets or, in very cold conditions, ice crystals.
What is ment by fog?
1. a large mass of water vapor condensed to fine particles, at or just above the earth’s surface; thick, obscuring mist. 2. a similar mass of smoke, dust, etc. obscuring the atmosphere.
Which type of solution fog is?
colloidal solution
What does pleaded mean?
1 : to ask for in a serious and emotional way : beg I pleaded for help. 2 : to offer as a defense, an excuse, or an apology To avoid going, I’ll plead illness. 3 : to argue for or against : argue in court His lawyer will plead the case before a jury. 4 : to answer to a criminal charge They all plead not guilty.