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<br />003473 <br /> <br />Identifyinq Dry, Normal and Wet Winters <br /> <br />Dry, normal and wet winters were identified by comparing maximUm <br />spring snoVlCourse water content each winter with long-term averages. Table <br />2 presents the percent of long-term average water content by winter for the <br />four mountainous sub-regions of Colorado. Percentages were computed by <br />comparing each winter's average water content for selected courses within <br />the drainage basins to long-term averages based on at least 30 years of <br />observations. Water content was used instead of depth of snowpack because <br />it is more representative of actual moisture. Depending upon the time of <br />year, one inch of water equals five to twenty inches of unpacked snow. <br /> <br />TABLE 2 <br />Percent of long-term maximum spring snowcourse water <br />content for 13 winters for selected snowcourses within <br />drainage basins in mountainous sub-regions of Colorado <br /> <br /> Sub-region <br />Winter South North East Central West Central <br /> - <br />61-62 128 123 134 127 <br />62-63 77 66 67 76 <br />63-64 1:l3 1:l5 79 96 <br />64-65 150 124 143 141:l <br />65-66 97 71 b2 b4 <br />66-67 84 79 81 91 <br />67-68 118 110 104 99 <br />68-69 123 100 76 98 <br />69-70 91 118 126 119 <br />70-71 79 120 100 93 <br />71-72 1:l2 1:l4 98 93 <br />. 72-73 136 lU4 lU2 100 <br />73-74 92 127 94 107 <br /> <br />14 <br />