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

Data Used In Plot   "label   USACE Observations   USACE Map   


Hydrograph plot for GCDW1

Data Used In Plot   "label   USACE Observations   USACE Map   


Hydrograph plot for GCDW1

Data Used In Plot   "label   USACE Observations   USACE Map