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<br /> <br />00 <br /> <br />. 'ng through a canyon, you <br />might see green and white <br />signs that say 'Climb to safety in <br />case of flash flood.' On a bright. <br />beautiful day, on the way to fish or <br />hike in the mountains, the signs may <br />seem silly. <br />The signs were put up to remind <br />people of what to do in case of a <br />flash flood. Since we can't totally <br />control or always predict flash <br />floods, we need to know what to do <br />just in case: Climb up, away from the <br />water. The signs are also a reminder <br />for visitors to Colorado. They may <br />not know to climb up the hill, out of <br />danger, when the river overflows its <br />banks. <br /> <br />.... <br />~ <br /> <br />.- <br /> <br />- <br /> <br />'eDRuno/J <br />II'" , <br /> <br />1 / '( :~n ' i /111 · <br />II ~\( J J lYAli <br /> <br /> <br />In much of the mountain West. between 60 and 75 percent of annual <br />precipitation falls in the fonn of snow. <br /> <br />If it's really cold, some people say it has to wann up to snow. But, <br />that's not true. It can snow even at incredibly cold temperatures as long as <br />there is some source of moisture and some way to lift or cool the air. <br /> <br />Snow is secretly dynamic. It's physical properties constantly change In <br />time and space. Both falling snow and snow on the ground are subject to <br />change. What begins as a fluffy blanket of soft'snow may become dense <br />and mushy in less than a day. <br /> <br />The origin of snow lies In subfreezing clouds where water exists in all <br />three states of matter: liquid, vapor and solid. <br /> <br />The accumulation of old and new snow on the ground is known as <br />snowpack. <br /> <br />Snow is white because it reflects most of the sunlight. The complex <br />structure of snow crystals results in countless tiny surfaces from which <br />, <br />visibleJlight is reflected. What little sunlight Is absorbed by snow Is <br />abso d unifonnly over the wavelengths of visible light, making snow <br />I white. <br /> <br /> <br />rt:printed by permtsslon <br />from .",~ Snow Bookle'- <br />by Nolan J. Ooesken & Arthur Judson <br />Co&orado Climate Cenkr <br /> <br />Ditch Safety <br /> <br />I n most places In Colorado, ditches and canals are dangerous places to <br />play. The sides are steep, slippery and difficult to climb. Depending on the <br />time of year, the water may be deep, fast moving, and usually very cold. <br />In some urban areas, like Boulder, <br />ditches may be shallow and the water <br />slow moving. <br /> <br />Dii:H\?$ <br />fd2. <br /> <br />~ <br />~D5lf <br /> <br />Stay away! <br /> <br /> <br />Dangerous ditches sometimes have <br />fences around them or signs warning <br />people to stay out. Ignoring the warnings <br />- <br />may cost you your life. <br /> <br />- <br />- <br /> <br />~ <br />.::::-> <br />~ <br /> <br />