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<br />IV. OVERVIEW OF THE FLOOD YEAR <br /> <br />During the 1993 flood season the first three types of flooding o(:curred in Colorado: <br /> <br />- Snowmelt: occurring mainly in May and Jlme, <br /> <br />- Rain on Snowmelt: occurring mliinly in May and June, <br /> <br />- Thunderstorms: most prevalent in May, June, July, <br />August and September, and <br /> <br />- General Rain: occurring mainly in May and June and <br />again in September and October (mostly southwest Colorado). <br /> <br />Snowmelt Floodin~ <br /> <br />MAY 1 SNOWPACK <br />STATE WIDE <br /> <br />% OF AVERAGE <br /> <br />'" <br /> <br />"--'---~-~-----"._._---~, <br /> <br />'" <br /> <br />" <br /> <br /> <br />------~, <br /> <br />,so <br /> <br />, <br /> <br />" <br /> <br /> <br />" <br />"[ " <br /> <br />J I , I <br /> <br />>0, <br /> <br />68697071727374 7576777B7980 81828~J848586878a8990 919293 <br />YEAR <br /> <br />_ % of AVG <br /> <br />Prepared by Snow Survey Slaff, Colorado <br /> <br />Snowmelt flooding results from a heavy snowpack experiencing several consecutive days of hot <br />w,eather. Although the snowpack was heavy in many locations in 1993, there was not a sustained period <br />of hot weather sufficient enough to cause serious flooding in most locations. The month of May was not <br />especially hot and most periods of hot weather lasted only 2 or 3 days with cooler weather following. <br /> <br />5 <br />