COLUMBIA − ROCKY REACH DAM
(
RRHW1
)
State:
Washington
County:
Chelan
Latitude:
47 31' 27" North
Longitude:
120 18' 3" West
Elevation:
703 ft
Supporting NWS Forecast Office:
WFO Spokane
Click for NWS Official River Forecasts for RRHW1
Daily Historical Statistics for February 14, 2026
Mean Flow:
106000 cfs
Max Flow:
194000 cfs (1996)
Min Flow:
44200 cfs (2010)
Statistics based on water years:
1961-2024
* statistics estimated based on current rating
The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.
Data Used In Plot
---
Data Used In Plot
---
Data Used In Plot
---
Data Used In Plot
---
Commerce Home
|
NOAA
|
NWS Organization
|
NWRFC Site Map
|
Search
Freedom of Information Act
|
Privacy Policy
|
Information Quality
|
USA.gov
|
Career Opportunities
RRHW1
--- --- --- ---