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What does cloudy weather mean?
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Our cloud cover map shows where cloud is forecast across the UK. Includes cloud cover forecasts up to 5 days.
- 7 Facts About Clouds
7 facts about clouds. Take a look at 7 fascinating things...
- 7 Facts About Clouds
Sep 29, 2023 · In summary, weather is considered overcast when dense, homogeneous cloud cover blocks out most or all available sunlight. Cloudy weather denotes substantial cloud amount with breaks that allow sun and patches of clear sky to be directly viewed between individual clouds or groups of clouds.
- What Is A Cloud?
- How Do Clouds form?
- What Causes The Air to Rise?
Many people believe that clouds are just made of water vapour (a gas). However, this is not strictly true. Water vapour is invisible, and it is around us all the time in the air. Sometimes there is more water vapour in the air and it feels humid or muggy. Other times, the air has less water vapour and it feels drier and fresher. Clouds appear when ...
As a simple explanation, when air rises, it cools, much like when you are going up a mountain and the air tends to get colder. Cold air can’t hold as much water vapour than warm air can, so as the air cools, it becomes saturated and the water vapour in it condenses. This means it turns from a gas to a liquid, much like when you get condensation on ...
1. The sun– The sun heats the ground, which then heats the air just above it, causing it to rise upwards in the sky (warm air rises). This tends to produce cumulus clouds. 2. Hills and mountains- When air is travelling towards a mountain or hill, it cannot go into the hill and so it rises upwards along the terrain. Stratus clouds are often produced...
- Clouds made by fire. One of the ways in which clouds are formed is by the heating of the earth's surface which causes air to rise which condenses water droplets to form clouds.
- Up in the clouds. Feared by paragliders and hand gliders, the base of cumulus clouds can be a dangerous place when thermal updrafts contribute to a phenomenon known as 'cloud suck'.
- Why clouds are white. The reason clouds are white and the sky is blue is all to do with the colour spectrum of light. Light from the sun starts out white but becomes scattered by particles in the sky.
- The cloudiest place on earth. The earth's atmosphere is a very cloudy place. NASA's Earth Observatory estimates that at any given time, around 67% of Earth's surface is covered by cloud.
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- Sunshine. When it comes to weather, there’s nothing better than a nice, calm sunny day. When the sun’s shining, we can enjoy all sorts of superb outdoor activities, like hiking and climbing, or we can simply sit out in nature and enjoy the world around us.
- Cloudy. There are dozens of different types of clouds out there. But when we’re talking about cloudy weather, we’re generally referring to conditions where at least half—but not all—of the sky is covered in clouds.
- Partly Cloudy. Partly cloudy is a relatively difficult type of weather to define, but it exists somewhere between sunny and cloudy. According to NOAA (National Oceanic and Atmospheric Administration), the term “partly cloudy” is used when the sky has between 3/8 and 5/8 cloud cover.
- Overcast. Overcast weather conditions occur whenever the sky is covered with a layer of unbroken clouds. According to the World Meteorological Organization (WMO), overcast is defined as when the sky is 8/8 covered in clouds with no major breaks between the clouds.
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [1] On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, [2] [3] just below the stratosphere.
Clear skies with few or no clouds can bring sunshine and warm weather in summertime and cold, frosty conditions in the winter. Some cloud patterns can even tell us when a change of weather is...
