<div class="eI2">Cloud cover (low,middle,high,total)</div>

Clouds are vertically divided into three levels: low, middle, and high. Each level is defined by the range of levels at which each type of clouds typically appears.<br><br>
<table  border="0" cellpadding="2" cellspacing="2" style="width:100%">
<tbody><tr>
<th>Level</th>
<th>Polar Region</th>
<th>Temperate Region</th>
<th>Tropical Region</th>
</tr>

<tr  align="center">
<th  align="left">High Clouds</th>
<td >10,000-25,000 ft<br>(3-8 km)</td>
<td>16,500-40,000 ft<br>(5-13 km)</td>
<td>20,000-60,000 ft<br>(6-18 km)</td>
</tr>

<tr align="center">
<th align="left">Middle Clouds</th>
<td>6,500-13,000 ft<br>(2-4 km)</td>
<td>6,500-23,000 ft<br>(2-7 km)</td>
<td>6,500-25,000 ft<br>(2-8 km)</td>
</tr>

<tr class="even" align="center">
<th  align="left">Low Clouds</th>
<td>Surface-6,500 ft<br>(0-2 km)</td>
<td>Surface-6,500 ft<br>(0-2 km)</td>
<td>Surface-6,500 ft<br>(0-2 km)</td>
</tr>
</tbody></table>
 <br><br>The types of clouds are:<br><br>
High clouds: Cirrus (Ci), Cirrocumulus  (Cc), and Cirrostratus (Cs). They are typically thin and white in appearance, but can appear in a magnificent array of colors when the sun is low on the horizon.<br><br>
Middle clouds: Altocumulus (Ac), Altostratus (As).  They are composed primarily of water droplets, however, they can also be composed of ice crystals when temperatures are low enough.<br><br>
 Low clouds: Cumulus (Cu), Stratocumulus (Sc), Stratus (St), and Cumulonimbus (Cb) are low clouds composed of water droplets.
<br>

</div>