Peakflow Forecasts Header

SIMILKAMEEN--NEAR NIGHTHAWK
   State:  Washington    County:  OKANOGAN
   Latitude:  48 59' 4" North    Longitude:  119 37' 9" West
   Elevation:  1138 feet
   Supporting WFO:  Spokane    
   Action Stage:  13'   Flood Stage:  14'   Moderate Flood Stage:  15'
   Major Flood Stage:  
16'

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.

SIMILKAMEEN--NEAR NIGHTHAWK   (NITW1)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-24
Forecast Period: April 24 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 7.48 6255 2024-05-10
90 % 7.79 6852 2024-05-11
70 % 8.29 7872 2024-05-17
50 % 8.82 9022 2024-05-20
30 % 9.14 9761 2024-05-26
10 % 10.06 12018 2024-06-02
05 % 10.25 12498 2024-06-08

Peakflow exceedence plot for NITW1

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