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Last modified
11/23/2009 10:50:30 AM
Creation date
10/4/2006 8:59:29 PM
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Template:
Floodplain Documents
County
Statewide
Title
Precipitation Records and Flood-Producing Storms in Cheyenne Wyoming
Date
10/23/2003
Prepared For
Cheyenne
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />'" 3.0 <br />'" <br />:1:, <br />" <br />Z <br />Z <br /> <br />. <br />z <br />o <br />I- <br />'" <br />I- <br />Q. <br />" <br />'" <br />0: <br />Q. <br />::;; <br />::> <br />::;; <br />x <br />'" <br />::;; <br />..J <br />'" <br />::> <br />z <br />z <br />'" <br /> <br />2.0 <br /> <br />'" <br />'" <br />:I: <br />" <br />Z <br />Z <br /> <br />z <br />o <br /> <br />I- <br />'" <br />I- <br /> <br />Q. <br /> <br />" <br />'" <br />0: <br />Q. <br /> <br />::;; <br />::> <br />::;; <br /> <br />x <br />'" <br />::;; <br /> <br />..J <br />'" <br />::> <br />z <br />z <br />'" <br /> <br /> <br />1.0 <br /> <br /> <br />PRECIPIT A TION-FREOUENCY <br />CURVE USING ALL DATA <br />AVAILABLE THROUGH 19B6 <br /> <br />95 PERCENT CONFIDENCE LIMIT <br /> <br />ANNUAL MAXIMUM PRECIPITATION. <br />VALUE AND YEAR--Year only <br />shown for largest storms; only <br />selected data points shown for <br />recurrenc-e intervals' less than <br />5 years to Increase readability <br /> <br />o <br /> <br /> <br />.... <br /> <br />. .. <br /> <br />. <br /> <br />1.0 I 1.1 1.5 2 <br /> <br />3 4 5 1015 30 50 100 200 5.00 1.000 <br />AVERAGE RECURRENCE INTERVAL. IN YEARS <br /> <br />5.000 10.000 <br /> <br />3.0 <br /> <br /> <br /> <br />2.0 <br /> <br />PRECIPIT A TION-FREOUENC Y <br />CURVE: <br /> <br />1.0 <br /> <br />Using all data available <br />throu'gh I 9B6 <br />Using only data available <br />through I 9 B 4 <br />AREA INCLUDED BETWEEN 95 <br />PERCENT CONFIDENCE LIMITS: <br /> <br />~ <br /> <br />Using all data a.vailable <br />through 19B6 <br />Using, only data available <br />through 19B4 <br /> <br />o <br /> <br />1.1 <br /> <br />1.5 2 <br /> <br />3 4 5 10 15 30 50 100 200500 1.000 <br />AVERAGE RECURRENCE INTERVAL. IN YEARS <br /> <br />5.000 10.000 <br /> <br />1.01 <br /> <br />Figure 2d.--Precipitation-frequency curves for 30-minute <br />duration, arithmetic Gumbel distribution. <br /> <br />18 <br />
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