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SP1986

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SP1986 last won the day on April 21 2016

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About SP1986

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    Santo

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  • Gender
    Male
  • Location
    Heswall, Wirral
  • Interests
    Meteorology, Art, Music, Geographical things, Walking, Travelling.
  • Weather Preferences
    Summer: warm, humid, thundery. Winter: mild, stormy, some snow.

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  1. Was expecting the first airfrost of the year tonight but it's stubbornly holding above 0C. In fact in the garden in the centre of town it was 3C. I think this is due to altitude.. Picture below taken at 11pm shows there's no frost.
  2. SP1986

    Cloud Types

    The Cloud Works Clouds are simply condensed water droplets known as water vapour. These clouds can achieve many different things; they can give warnings, they can produce preciptation or merely tell how stable/unstable the atmosphere is. Clouds can come in many forms from the fluffy fair-weather Cumulus to the thick billowing frontal cloud of the Nimbostratus. Fair-weather Cumulus are caused when the sun causes heating of the ground and this heat known as convection causes clouds to grow on the boundary between cool air and warm air and sometimes these fluffy fair-weather Cumulus can grow into Cumulonimbus causing heavy midday showers or evening thunderstorms. Frontal cloud is the same process where warmer air bumps into cooler air or vica versa, causing moisture to form where the two air masses meet. This is also controlled by evaporating water from the sea/ocean before hand but only when a temperature gradient meet does condensation become very active and these two split areas of heat are called fronts. The Cloud Types Cirrus Cirrus are wispy clouds. These clouds are made of ice crystals and sit at the top of the layer of the atmosphere called the Troposphere where all the weather takes place. Cirrus is usually a sign that a frontal system containing strong winds is on the way or they can be found in the anvil of a Cumulonimbus. These clouds are known also as 'Mares' Tales' and are found around 4-10 miles up from sea level. Cirrostratus Cirrostratus are sheets of stratus like formation high in the sky. These are not particularly a sign of bad weather to follow. The sheet is made mostly of ice and is often seen in winter following on from periods of snow where the sun is visible through the cloud. Sometimes these can produce isolated snow flurries in winter. Again these clouds are 4-10 miles up from sea level. Cirrocumulus Cirrocumulus are uniformed sheets of cumulo-form cloud usually made of ice. These clouds indicate higher level instability particularly in summer and can be a sign of a coming thunderstorm. In winter these clouds often precede snow showers and can again give their own flurries if it is cold enough. These clouds are usually made of ice. The clouds are also known as 'Mackeral Sky' due to the fish-scale apperance they take on. These clouds are usually found around 4-5 miles up from sea level. Altocumulus Altocumulus are patches of cloud usually found in a uniformed formation and these clouds are usually made of ice or water droplets. These are very good sign of mid-high level instability and can sometimes tell of a thunderstorm or heavy shower on its way. In the winter these clouds can tell of storms and snow following but these clouds do not give any precipitation. These cloud are usually found 2-6 miles above sea level. Altostratus A sign that a front is on the way, these clouds can tell whether there will be periods of rain or snow and are often the cloud that precedes Nimbostratus on a warm front. These clouds are thick and they take on a sheet formation of water droplets or ice crystals. These clouds can even produce hours of snow themselves under the right conditions. These cloud again are found about 2-6 miles above sea level Cumulonimbus These clouds can tower as high as mount everest and are famous for their thunderstorms. A Cumulonimbus consists of a Towering Cumulus and an anvil of cirrus on the top. Although the bases of these clouds are less than 2.5 miles above sea level they can extend about 10 miles into the higher reaches of the Troposhere. The clouds are made of ice crystals and water droplets and give heavy rainfall and hail and sometimes snow associated with a cold front. Cumulus These clouds are usually fluffy fair-weather clouds built up by convection but enough sunlight can transform them into Towering Cumulus which can give torrential afternoon downpours. These clouds are made of water droplets though a Towering Cumulus can have ice crystals as the main feature at the top. These are mainly a shower cloud and can give showers of rain or snow. These clouds again form less than 2 miles above sea level. Nimbostratus These are deep layers of stratus usually associated with warm or occluded fronts. These clouds give precipitation of rain or snow and sometimes even hail and have been known to produce lightning. These clouds are slow moving and have a shallow temperature gradient associated with the warm front and usually indicate stable air is on the way. These clouds are made of water droplets and are found around about 2 miles above dea level. Stratus These clouds are low level, uniformed sheets of thick grey cloud. These clouds often appear with weak fronts and are usually a sign of stable air. Such clouds produce drizzle or light rain and when they hit ground level they are known as fog. These clouds are particularly associated with High Pressure areas of the Atlantic in the winter and summer where the land is cool and the sea is warm. These clouds are made from water droplets and form below 2 miles above sea level. Other Clouds They are the cloud types that are the mechanics of our atmosphere but there are other clouds including Mammatus which are found under Cumulonimbus anvils during a death of a severe thunderstorm. Also Pileus clouds which are a good indication of a strong shear these are wispy clouds that over ride Towering Cumulus clouds. Of course the noctilucent clouds that produce eerie shape and colours that are crafted by split colours from the sun or other sources of light.
  3. An ex storm is heading towards us now. Here we don't get storms unless they from the west or northwest.. Its all about orographic uplift for the storms over Wales at current. Here heavy rain due but lightning or thunder unlikely
  4. And it would appear to have died (the Thunder). Storms are as rare as snow here literally.
  5. Storms approaching with eerie gunshot thunder in the distance. Now of course it could be orographic and die before it gets here (as usual). We will see
  6. They're not even surviving up to me. I don't think it's possible unless a storm develops overhead which is very rare.
  7. I just heard gunshot thunder in the distance. That will have woken someone up in Wales
  8. Unfortunately it seems impossible to get overhead thunder these days. It either always goes east or dies off just before reaching our area!
  9. Was woken up by lightning just before and distant rumbles of thunder. Unfortunately as is often the case the storm has died before reaching here.
  10. Big rain showers this morning. Rain bouncing off the ground but no thunder of course.
  11. Nothing here all day aside from light rain at 3pm. It must truly be one of the least stormy places in the UK without question.
  12. As predicted nothing here.. In fact aside from a light shower around 3 nothing at all.
  13. Still nothing. By the time a shower comes it runs out of fuel. The best time and direction for storms is westerly in the winter
  14. I can see a shower to the southeast.. but it looks to be weakening as it travels up the peninsula. It may maintain to the south though.
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