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 Mount Hood





Surface Water Supply Index (SWSI)

** Due to staffing shortages, the Oregon SWSI will only be updated annually at the beginning of April. More frequent updates may be requested by water users. We apologize for the inconvenience. If you have a question or concern, please contact Melissa Webb at 503-414-3270.

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