Table --Seasonal precipitation^ maximum snow depth, amount of rain, total 

 out f lend, and components of outflow (rain percolate, throughfall- 

 drip percolate, and snowmelt percolate) in inches 





Forest 



stations 





Smal 1 



open stations 



40 





42 • 47 





39 • 



45 • 49 









1967-68 















Total precipitation 



20. 



26 





24 







Maximum snow depth 



44 













Amount of rain 



5 . 



10 





18. 



, 24 





Total outflow 



12. 



79 











Rain percolate 



•7 



3 . 



92 





8 . 



34 





Through f al 1- drip 















percolate 









n 



y . 



n n 



, yu 





Snowmelt percolate 



8. 



87 











1968-69 









21. 



17 



22.53 



Total precipitation 



26. 



34 



23.93 



50 





70 



Maximum snow depth 



78 





82 









Amount of rain 



4. 



55 



6.27 



9. 



44 



9.91 



Total outflow 



7. 



70 



8.56 









Rain percolate 



4. 



04 



5.21 



5-. 



,65 



6.61 



Through fall -drip 















percolate 









3. 



79 



3. 30 



Snowmelt percolate 



3. 



66 



3. 35 



1969-70 



17. 



,64 



19, 



,67 



^14. 



71 



Total precipitation 



21, 



,58 



20, 



,83 



ho. 



,96 



39 





45 





49 





Maximum snow depth 



72 





71 





68 

















Amount of rain 



2, 



,84 



4, 



, 18 



2l, 



,36 



6. 



,69 



6. 



,23 



6. 



91 



Total outflow 



4, 



,06 



3, 



,97 



3, 



,32 















Rain percolate 



2, 



,71 



3, 



,08 



1, 



, 36 



5. 



, 82 



5. 



38 



5. 



45 



Throughfall-drip 

 percolate 

















,87 





85 



1. 



46 



Snowmelt percolate 



1, 



,35 





,89 



1, 



,96 



November-March, inclusive. 

 November- January, inclusive. 



During 1967-1968 the forest accumulated a very shallow snowpack (24 inches) which 

 did not persist over the usual period because of unseasonable melting in late February 

 and early March. By early March, the lysimeter in the forest became bare several weeks 

 before the lysimeter in the small opening. Actually, the ablation season in 1968 began 

 well before April 1; yet the data are of interest and are included in the report because 

 of the unusual magnitude of melt in midwinter. 



Gross release of water from sncwpacfe. --Lysimeter outflow occurred in each of 56 

 station-months included in the study. Except for brief periods during each November 

 and in March (1968), the outflow drained from an established snowpack. The monthly 

 values range as low as 0.02 inch and as high as 6.72 inches; they also display a diverse 

 range in values among months in each station-year. In contrast, seasonal totals among ■ 



9 



