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: 2024-04-24
Forecast Period: April 24 to August 1
Exceedence
Probability
Stage
feet
Discharge
CFS
Probable
Date of Peak
95 % 4.62 1085 2024-04-28
90 % 4.68 1124 2024-05-06
70 % 5.38 1654 2024-05-14
50 % 5.85 2080 2024-05-22
30 % 6.14 2369 2024-05-31
10 % 6.85 3193 2024-06-19
05 % 7.38 3898 2024-07-07

Peakflow exceedence plot for SNQW1

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