CASCADE − AT MARBLEMOUNT (CSCW1)
   State:  Washington
   County:  Skagit
   Latitude:  48 31' 34" North
   Longitude:  121 24' 51" West
   Elevation:  340 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for CSCW1
   

Daily Historical Statistics for February 24, 2026
Mean Stage: 12.42 ft  Mean Flow: 552 cfs
Max Stage: 13.29 ft  Max Flow: 1180 cfs (2025)
Min Stage:  11.71 ft   Min Flow: 234 cfs (2019)

Statistics based on water years: 2007-2025
* statistics estimated based on current rating

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

Hydrograph plot for CSCW1

Data Used In Plot   "label   USGS Observations   


Hydrograph plot for CSCW1

Data Used In Plot   "label   USGS Observations