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 Mount Hood





Surface Water Supply Index (SWSI)

** The list of stations used to calculate the SWSI values for Lake County and South Coast basins was altered as of Sept 2010.  The historic SWSI values were re-calculated using the updated station lists in these two basins. Please direct any questions about this issue to Jon Lea.

CURRENT SWSI

View Oregon SWSI map for all basins for the selected month & year:

Year:     

Click on a basin below to view the 3-year SWSI graph for that basin:

Click on a basin to view a SWSI graph
Download comma-delimited file of all historic SWSI values