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Washington Basin Outlook Report for
LOWER COLUMBIA RIVER BASINS as of May 1, 2008


Graph representing mountain snowpack Graph representing precipitation

Streamflow Forecasts

LOWER COLUMBIA RIVER BASINS
Streamflow Forecasts - May 1, 2008

 <==== Drier === Future Conditions === Wetter ====> 
Forecast Pt============ Chance of Exceeding * =========== 
   Forecast90%70%50% (Most Prob)30%10%30 Yr Avg
   Period(1000AF)(1000AF)(1000AF)(% AVG.)(1000AF)(1000AF)(1000AF)

No Records Found

    * 90%, 70%, 30%, and 10% chances of exceeding are the probabilities that the
       actual flow will exceed the volumes in the table.

    (1) - The values listed under the 10% and 90% Change of Exceeding are
            actually 5% and 95% exceedance levels.
    (2) - The value is natural flow - actual flow may be affected by upstream
            water management.



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or Write:
Scott Pattee, Water Supply Specialist
Natural Resources Conservation Service
Washington Snow Survey Office
2021 E. College Way, Suite 214
Mount Vernon, WA 98273-2843