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<br />108 CONTRIBUTIONS TO HYDROLOGY OJ!' UNITED STATES, 1923-1924.
<br />
<br />.
<br />
<br />RainfauB of fI1'eal6s! intenaily in Co/crado and Wyoming, recorded &y Weather
<br />. . . BUTeau. . _ .
<br />
<br /> Denver.- Pueblo." Cheyenne:e : Sherldan.d
<br /> , . .
<br />Length of rainfall
<br />(minutes). Rainfall - Rainfall - RainfBll Fr.. Rainfall Fr..
<br /> (lnches), quency (in_). quency (lnches). quency (iDe-bas). quency
<br /> in years. in years. in years. in years.
<br /> -'- ~
<br /> -
<br /> a8' .. a<4 24 a48 20 .,48 "
<br /> ,59 I' .38 I' ,46 I. ,41 ,-.
<br />lL__________________~ .52 lLa ," 4 ,38 6., ,3. U
<br /> .47 - as ... 3 ." . 8.. .29 3.
<br /> .41 .., ,33 U .33 4.0 .28 U
<br /> 1.20 .. .80 24 , ," 20 ,69 "
<br /> ,., 17 .71 I' ,68 I. . .51 ,_.
<br />10__....._n.......___ ,,., 11.3 .68 8 . .61 . ,50 38
<br /> ,86 ... ,M 6 .60 . ... 3.
<br /> ". ... ,61 . 4.8 .57 3.3 ,46 3.
<br /> LS' .. .., .. .80 20 ,85 ..
<br /> L14 17 ,93 12 ,.. . I. .,., ".
<br />15_'......________n___ LM lLa ,60 8 ,81 .., ,eo ...
<br /> . .9& ... .81 6 .71 U .68 as
<br /> ,.. 6.8 ,80 4.8 ,eo 4.0 ,59 3,.
<br /> L52 .. 1.20 24 1.13 20 ,97 "
<br /> L24 17 L1' 12 .93 I. _85 ,..
<br />20____________________ L19 lLa 1_" 8 ,86 6.' .81 .,~
<br /> L18 as ... . ..81 8.. ,78 3..
<br /> .1.10 6.8 -9.5 4.8 .74 4.0 ..0 ..
<br /> 1.72 .. 1." 24 1.19 20 L" ..
<br /> 1." 17 ..45 I' ' LOl I. .97 ,..
<br />30____________________ 1." lLa 1.37 8 . ,98 6.' ,91 M
<br /> 1.36 ... 1.28 . ,98 4.0 .81 3.'
<br /> 1_24 ... 1.12 4.8 ,DO 3.3 ,78 3,0
<br /> 320 .. 308 .. 1.36 20 ..53 ..
<br /> 1." 17 1.82 12 1.35 10 1.28 ,_.
<br />60____________________ 1.72 11.3 1.75 8 "1.25 6.7 1,00 8.0
<br /> 1.36 ... 1.45 6 L" 8.. ,91 33
<br /> 1.35 6.8 L32 4.8 ,1.10 4.0 ,'8 8..
<br />
<br />. 34 years" records. . 20 years' records.
<br />. 24,.ears' records. " 15 year~' records.
<br />NOTE.-Column headed uFreauency In years" indicates the probable time interval between the occur.
<br />rence of rainfalls of approximately the same intensity, as determined from existing recorcls.
<br />
<br />As the above-l1lcorded rainfalls occurred outside the foothill
<br />region, in which the cloudbursts are heaviest, the intensity during
<br />such storms is probably greater. A local. observer stated that
<br />during the Arkansas River flood of June 3-5, 1921; within the area
<br />of severest cloudbursts recorded (pp. 105-106),5 inches of rain fell
<br />in 30 minutes in Boggs Flat, in or near sec. 35, T. 21 S" R; 66 W"
<br />but the method of obtaining this measurement. is not known.
<br />
<br />FLOODS IN BIG HOBN RIVER BASIN, WYO.
<br />FLOOD OF JULY 23-24,1923.
<br />
<br />GBN'ERAL FEATURES.
<br />
<br />From July 22 to 26 a series of heavy rains in the BigHorn River
<br />basin caused the greatest flood on the Big Horn at Thermopolis in the
<br />last 24 years for which records are available, The following table
<br />shows sll available Weather Bureau records of rainfall in the Big
<br />Horn drainage basin during that period:
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