Storm Occurrence by Storm Duration 



In each zone, 11 duration intervals were established to examine the relationship 

 between storm occurrence and storm duration: 1-10, 11-20, 21-30, 31-40, 41-50, 51-60, 

 61-90, 91-120, 121-240, 241-360, and greater than 360 minutes. The number of storms 

 that occurred in each duration interval was totaled. A mass curve of percent of total 

 storms was plotted against the central value, or "class mark," of each duration interval, 

 These zonal curves are unweighted averages . 



Table 1 .--Listing of the precipitation intensity stations 





Map : 



Zone 



: Period of : 



: Years of : 



Station 



Station : 



numb er : 



number 



: record : 



: record : 



elevation 





DAVIS COUNTY EXPERIMENTAL 



WATERSHED 









1 



1 



1939-68 





4 350 





2 



2 



^1948-65 



1 7 



A 400 





3 



2 



1942-68 



27 



6 800 



pa T'Tn i T1 ct1" rtTi F 1 ?1 1" 



4 



2 



1942-65 



24 



7 , 600 



Head Bipler Creek 



- 5 



3 



1941-66 



i26 



8,000 



P 1" pyA^ T 1 1 



8 



3 



^1948-58 



10 



8 700 





10 



3 



1942-63 



22 



8 , 200 





14 



4 



1941-62 



22 



8 , 350 



MnH PtppIc 



7 



3 



1939-58 



20 



8 , 370 



Head Ford Creek 



9 



3 



1946-62 



17 



8,700 



Steed Creek 



6 



3 



1946-62 



17 



8,800 



Bairs Canyon 



13 



4 . 



1947-57 



11 



8,800 



Head Halfway Creek 



12 



4 



1941-66 



26 



8,900 



Head Sheppard Creek 



11 



4 



1948-57 



10 



9,000 





' GREAT BASIN 



EXPERIMENTAL AREA 







Sorenson's Field 



1 



1 



1946-65 



20 



5,550 



Oaks Climatic Station 



2 



2 



1942-65 



24 



7,650 



GBRS Headquarters 



3 



3 



1937-65 



29 



8,850 



Bluebell Bridge 



4 



4 



1942-55 



14 



9,000 



Meadows Climatic Station 



5 



4 



1942-65 



24 



9,850 



Alpine Cattle Pasture 



6 



4 



1946-58 



13 



9,900 



Alpine Physical Factors 













Station 



7 



4 



H919-43 



20 



9,900 



Philadelphia Flat 



. 8 



4 



1942-55 



14 



9,950 



Alpine Area A 



9 



4 



1944-65 



22 



10,100 



Left Fork Ephraim Creek 



#1 11 



4 



1946-59 



14 



10,100 



Alpine Area B 



10 



4 



1944-65 



22 



10,150 



■'•See figures 1 and 2. 

 ^Except 1949. 



^Except 1921, 1930, 1933, and 1934. 



7 



