Peakflow Forecasts Header

NF SNOQUALMIE--NEAR SNOQUALMIE FALLS
   State:  Washington    County:  KING
   Latitude:  47 37' 0" North    Longitude:  121 43' 0" West
   Elevation:  1130 feet
   Supporting WFO:  Seattle    

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.

NF SNOQUALMIE--NEAR SNOQUALMIE FALLS   (SNQW1)
Forecasts for Water Year
2024
Ensemble Date: 2024-04-18
Forecast Period: April 18 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.41 948 2024-04-30
90 % 4.49 999 2024-04-30
70 % 5.39 1659 2024-05-13
50 % 5.87 2092 2024-05-20
30 % 6.04 2269 2024-05-30
10 % 6.69 2991 2024-06-14
05 % 7.32 3811 2024-06-28

Peakflow exceedence plot for SNQW1

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