COLUMBIA − GRAND COULEE DAM (GCDW1)
   State:  Washington
   County:  Grant
   Latitude:  47 58' 0" North
   Longitude:  118 58' 59" West
   Elevation:  1700 ft
   Full Pool Elevation:  1290 ft


   Supporting NWS Forecast Office: WFO Spokane
   Click for NWS Official River Forecasts for GCDW1

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for GCDW1


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Hydrograph plot for GCDW1


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Hydrograph plot for GCDW1


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