MF WILLAMETTE − AT JASPER (JASO3)
   State:  Oregon
   County:  Lane
   Latitude:  43 59' 54" North
   Longitude:  122 54' 20" West
   Elevation:  513 ft

   Supporting NWS Forecast Office: WFO Portland

   
Click for NWS Official River Forecasts for JASO3
   


   Action Stage:  
9.4 ft
   Flood Stage:  
10 ft
   Moderate Flood Stage:  
13 ft
   Major Flood Stage:  
15 ft
Daily Historical Statistics for March 13, 2026
Mean Stage: 3.91 ft  Mean Flow: 3520 cfs
Max Stage: 8.54 ft  Max Flow: 16000 cfs (1957)
Min Stage:  2.06 ft   Min Flow: 1070 cfs (2005)

Statistics based on water years: 1906-2023
* statistics estimated based on current rating

Record Stage: 
17.4 ft
Record Flow: 
94000 cfs
Date of Record: 
November 23, 1909

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

Hydrograph plot for JASO3

Data Used In Plot   "label   ---


Hydrograph plot for JASO3

Data Used In Plot   "label   ---