Peakflow Forecasts Header

ENTIAT--NEAR ARDENVOIR
   State:  Washington    County:  CHELAN
   Latitude:  47 49' 6" North    Longitude:  120 25' 18" West
   Elevation:  1561 feet
   Supporting WFO:  Spokane    
   Action Stage:  6'   Flood Stage:  7.5'   Moderate Flood Stage:  8'
   Major Flood Stage:  9'

Forecasts are calculated from a forecast time series that approximates flow at a 6 hour time step interval. Observed instantaneous peaks can be higher than model forecast peaks.

ENTIAT--NEAR ARDENVOIR   (ARDW1)
Forecasts for Water Year 2025
Ensemble Date: 2025-05-14
 Forecast Period: May 14 to September 1
Exceedence
Probability 		Stage
feet 		Discharge
CFS 		Probable
Date of Peak
95 % 3.74 944 2025-05-14
90 % 3.74 944 2025-05-14
70 % 3.87 1032 2025-05-30
50 % 4.18 1234 2025-06-01
30 % 4.37 1368 2025-06-06
10 % 4.73 1608 2025-06-12
05 % 4.86 1706 2025-06-18

Peakflow exceedence plot for ARDW1

 Click to download runoff traces used in forecast.  Click for comma delimited data used in plot.csv icon