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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I, <br /> <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br /> <br />IV. OVERVIEW OF THE FLOOD YEAR <br /> <br />During the 1993 flood season the first three types of flooding occurred in Colorado: <br /> <br />- Snowmelt: occurring mainly in May and June, <br /> <br />- Rain on Snowmelt: occurring mainly 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 Flooding <br /> <br />MAY 1 SNOWPACK <br />STATE WIDE <br /> <br />% OF AVERAGE <br /> <br />200 <br /> <br />'" <br /> <br />>SO <br /> <br /> <br />"0 <br /> <br />50 <br /> <br />o <br /> <br />6869707172737475767778798081828384858687888990919293 <br />YEAR <br /> <br />_ % of AVG <br /> <br />Prepared by Snow Survey Staff, Colorado <br /> <br />Snowmelt flooding results from a heavy snowpack experiencing several consecutive days of hot <br />weather. 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 />