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Hydrograph River at a Glance Download
Snoqualmie River at Snoqualmie Falls River Discharge (kcfs)Stage (ft)Observed: 1.62 kcfs at 9:00PM Apr 21, 2024Observed: 1.62 kcfs at 9:15PM Apr 21, 2024Highest Observation: 1.63 kcfs at 9:30PM Apr 21, 2024Observed: 1.61 kcfs at 9:45PM Apr 21, 2024Observed: 1.61 kcfs at 10:00PM Apr 21, 2024Observed: 1.61 kcfs at 10:15PM Apr 21, 2024Observed: 1.61 kcfs at 10:30PM Apr 21, 2024Observed: 1.61 kcfs at 10:45PM Apr 21, 2024Observed: 1.61 kcfs at 11:00PM Apr 21, 2024Observed: 1.61 kcfs at 11:15PM Apr 21, 2024Observed: 1.6 kcfs at 11:30PM Apr 21, 2024Observed: 1.61 kcfs at 11:45PM Apr 21, 2024Observed: 1.61 kcfs at 12:00AM Apr 22, 2024Observed: 1.61 kcfs at 12:15AM Apr 22, 2024Observed: 1.61 kcfs at 12:30AM Apr 22, 2024Observed: 1.61 kcfs at 12:45AM Apr 22, 2024Observed: 1.61 kcfs at 1:00AM Apr 22, 2024Observed: 1.61 kcfs at 1:15AM Apr 22, 2024Observed: 1.61 kcfs at 1:30AM Apr 22, 2024Observed: 1.61 kcfs at 1:45AM Apr 22, 2024Observed: 1.61 kcfs at 2:00AM Apr 22, 2024Observed: 1.61 kcfs at 2:15AM Apr 22, 2024Observed: 1.6 kcfs at 2:30AM Apr 22, 2024Observed: 1.6 kcfs at 2:45AM Apr 22, 2024Observed: 1.6 kcfs at 3:00AM Apr 22, 2024Observed: 1.58 kcfs at 3:15AM Apr 22, 2024Observed: 1.59 kcfs at 3:30AM Apr 22, 2024Observed: 1.59 kcfs at 3:45AM Apr 22, 2024Observed: 1.59 kcfs at 4:00AM Apr 22, 2024Observed: 1.6 kcfs at 4:15AM Apr 22, 2024Observed: 1.6 kcfs at 4:30AM Apr 22, 2024Observed: 1.59 kcfs at 5:45AM Apr 22, 2024Observed: 1.59 kcfs at 6:00AM Apr 22, 2024Observed: 1.59 kcfs at 6:15AM Apr 22, 2024Observed: 1.59 kcfs at 6:30AM Apr 22, 2024Observed: 1.59 kcfs at 6:45AM Apr 22, 2024Observed: 1.59 kcfs at 7:00AM Apr 22, 2024Observed: 1.58 kcfs at 7:15AM Apr 22, 2024Observed: 1.57 kcfs at 7:30AM Apr 22, 2024Observed: 1.58 kcfs at 7:45AM Apr 22, 2024Observed: 1.56 kcfs at 8:00AM Apr 22, 2024Observed: 1.56 kcfs at 8:15AM Apr 22, 2024Observed: 1.57 kcfs at 8:30AM Apr 22, 2024Observed: 1.56 kcfs at 8:45AM Apr 22, 2024Observed: 1.57 kcfs at 9:00AM Apr 22, 2024Observed: 1.57 kcfs at 9:15AM Apr 22, 2024Observed: 1.58 kcfs at 9:30AM Apr 22, 2024Observed: 1.58 kcfs at 9:45AM Apr 22, 2024Observed: 1.59 kcfs at 10:00AM Apr 22, 2024Observed: 1.59 kcfs at 10:15AM Apr 22, 2024Observed: 1.59 kcfs at 10:30AM Apr 22, 2024Observed: 1.59 kcfs at 10:45AM Apr 22, 2024Observed: 1.59 kcfs at 11:00AM Apr 22, 2024Observed: 1.6 kcfs at 11:15AM Apr 22, 2024Observed: 1.58 kcfs at 11:30AM Apr 22, 2024Observed: 1.59 kcfs at 11:45AM Apr 22, 2024Observed: 1.6 kcfs at 12:00PM Apr 22, 2024Observed: 1.6 kcfs at 12:15PM Apr 22, 2024Observed: 1.59 kcfs at 12:30PM Apr 22, 2024Observed: 1.58 kcfs at 12:45PM Apr 22, 2024Observed: 1.59 kcfs at 1:00PM Apr 22, 2024Observed: 1.58 kcfs at 1:15PM Apr 22, 2024Observed: 1.59 kcfs at 1:30PM Apr 22, 2024Observed: 1.59 kcfs at 1:45PM Apr 22, 2024Observed: 1.57 kcfs at 2:00PM Apr 22, 2024Observed: 1.59 kcfs at 2:15PM Apr 22, 2024Observed: 1.58 kcfs at 2:30PM Apr 22, 2024Observed: 1.58 kcfs at 2:45PM Apr 22, 2024Observed: 1.57 kcfs at 3:00PM Apr 22, 2024Observed: 1.57 kcfs at 3:15PM Apr 22, 2024Observed: 1.56 kcfs at 3:30PM Apr 22, 2024Observed: 1.56 kcfs at 3:45PM Apr 22, 2024Observed: 1.55 kcfs at 4:00PM Apr 22, 2024Observed: 1.55 kcfs at 4:15PM Apr 22, 2024Observed: 1.54 kcfs at 4:30PM Apr 22, 2024Observed: 1.55 kcfs at 4:45PM Apr 22, 2024Observed: 1.54 kcfs at 5:00PM Apr 22, 2024Observed: 1.54 kcfs at 5:15PM Apr 22, 2024Observed: 1.54 kcfs at 5:30PM Apr 22, 2024Observed: 1.54 kcfs at 5:45PM Apr 22, 2024Observed: 1.54 kcfs at 6:00PM Apr 22, 2024Observed: 1.54 kcfs at 6:15PM Apr 22, 2024Observed: 1.54 kcfs at 6:30PM Apr 22, 2024Observed: 1.53 kcfs at 6:45PM Apr 22, 2024Observed: 1.52 kcfs at 7:00PM Apr 22, 2024Observed: 1.52 kcfs at 7:15PM Apr 22, 2024Observed: 1.53 kcfs at 7:30PM Apr 22, 2024Observed: 1.5 kcfs at 7:45PM Apr 22, 2024Observed: 1.52 kcfs at 8:00PM Apr 22, 2024Observed: 1.52 kcfs at 8:15PM Apr 22, 2024Observed: 1.51 kcfs at 8:30PM Apr 22, 2024Observed: 1.51 kcfs at 8:45PM Apr 22, 2024Observed: 1.5 kcfs at 9:00PM Apr 22, 2024Observed: 1.5 kcfs at 9:15PM Apr 22, 2024Observed: 1.49 kcfs at 9:30PM Apr 22, 2024Observed: 1.48 kcfs at 9:45PM Apr 22, 2024Observed: 1.48 kcfs at 10:00PM Apr 22, 2024Observed: 1.5 kcfs at 10:15PM Apr 22, 2024Observed: 1.48 kcfs at 10:30PM Apr 22, 2024Observed: 1.48 kcfs at 10:45PM Apr 22, 2024Observed: 1.49 kcfs at 11:00PM Apr 22, 2024Observed: 1.48 kcfs at 11:15PM Apr 22, 2024Observed: 1.48 kcfs at 11:30PM Apr 22, 2024Observed: 1.48 kcfs at 11:45PM Apr 22, 2024Observed: 1.48 kcfs at 12:00AM Apr 23, 2024Observed: 1.48 kcfs at 12:15AM Apr 23, 2024Observed: 1.48 kcfs at 12:30AM Apr 23, 2024Observed: 1.47 kcfs at 12:45AM Apr 23, 2024Observed: 1.47 kcfs at 1:00AM Apr 23, 2024Observed: 1.48 kcfs at 1:15AM Apr 23, 2024Observed: 1.47 kcfs at 1:30AM Apr 23, 2024Observed: 1.46 kcfs at 1:45AM Apr 23, 2024Observed: 1.46 kcfs at 2:00AM Apr 23, 2024Observed: 1.47 kcfs at 2:15AM Apr 23, 2024Observed: 1.48 kcfs at 2:30AM Apr 23, 2024Observed: 1.47 kcfs at 2:45AM Apr 23, 2024Observed: 1.47 kcfs at 3:00AM Apr 23, 2024Observed: 1.47 kcfs at 3:15AM Apr 23, 2024Observed: 1.47 kcfs at 3:30AM Apr 23, 2024Observed: 1.47 kcfs at 3:45AM Apr 23, 2024Observed: 1.47 kcfs at 4:00AM Apr 23, 2024Observed: 1.46 kcfs at 4:15AM Apr 23, 2024Observed: 1.47 kcfs at 4:30AM Apr 23, 2024Observed: 1.48 kcfs at 4:45AM Apr 23, 2024Observed: 1.47 kcfs at 5:00AM Apr 23, 2024Observed: 1.46 kcfs at 5:15AM Apr 23, 2024Observed: 1.47 kcfs at 5:30AM Apr 23, 2024Observed: 1.47 kcfs at 5:45AM Apr 23, 2024Observed: 1.46 kcfs at 6:00AM Apr 23, 2024Observed: 1.46 kcfs at 6:15AM Apr 23, 2024Observed: 1.47 kcfs at 6:30AM Apr 23, 2024Observed: 1.47 kcfs at 6:45AM Apr 23, 2024Observed: 1.46 kcfs at 7:00AM Apr 23, 2024Observed: 1.47 kcfs at 7:15AM Apr 23, 2024Observed: 1.46 kcfs at 7:30AM Apr 23, 2024Observed: 1.47 kcfs at 7:45AM Apr 23, 2024Observed: 1.46 kcfs at 8:00AM Apr 23, 2024Observed: 1.47 kcfs at 8:15AM Apr 23, 2024Observed: 1.47 kcfs at 8:30AM Apr 23, 2024Observed: 1.47 kcfs at 8:45AM Apr 23, 2024Observed: 1.48 kcfs at 9:00AM Apr 23, 2024Observed: 1.47 kcfs at 9:15AM Apr 23, 2024Observed: 1.47 kcfs at 9:30AM Apr 23, 2024Observed: 1.48 kcfs at 9:45AM Apr 23, 2024Observed: 1.48 kcfs at 10:00AM Apr 23, 2024Observed: 1.48 kcfs at 10:15AM Apr 23, 2024Observed: 1.47 kcfs at 10:30AM Apr 23, 2024Observed: 1.48 kcfs at 10:45AM Apr 23, 2024Observed: 1.48 kcfs at 11:00AM Apr 23, 2024Observed: 1.5 kcfs at 11:15AM Apr 23, 2024Observed: 1.5 kcfs at 11:30AM Apr 23, 2024Observed: 1.5 kcfs at 11:45AM Apr 23, 2024Observed: 1.51 kcfs at 12:00PM Apr 23, 2024Observed: 1.51 kcfs at 12:15PM Apr 23, 2024Observed: 1.49 kcfs at 12:30PM Apr 23, 2024Observed: 1.5 kcfs at 12:45PM Apr 23, 2024Observed: 1.5 kcfs at 1:00PM Apr 23, 2024Observed: 1.5 kcfs at 1:15PM Apr 23, 2024Observed: 1.5 kcfs at 1:30PM Apr 23, 2024Observed: 1.5 kcfs at 1:45PM Apr 23, 2024Observed: 1.5 kcfs at 2:00PM Apr 23, 2024Observed: 1.5 kcfs at 2:15PM Apr 23, 2024Observed: 1.5 kcfs at 2:30PM Apr 23, 2024Observed: 1.5 kcfs at 2:45PM Apr 23, 2024Observed: 1.48 kcfs at 3:00PM Apr 23, 2024Observed: 1.48 kcfs at 3:15PM Apr 23, 2024Observed: 1.48 kcfs at 3:30PM Apr 23, 2024Observed: 1.48 kcfs at 3:45PM Apr 23, 2024Observed: 1.48 kcfs at 4:00PM Apr 23, 2024Observed: 1.48 kcfs at 4:15PM Apr 23, 2024Observed: 1.48 kcfs at 4:30PM Apr 23, 2024Observed: 1.47 kcfs at 4:45PM Apr 23, 2024Observed: 1.48 kcfs at 5:00PM Apr 23, 2024Observed: 1.47 kcfs at 5:15PM Apr 23, 2024Observed: 1.47 kcfs at 5:30PM Apr 23, 2024Observed: 1.48 kcfs at 5:45PM Apr 23, 2024Observed: 1.48 kcfs at 6:00PM Apr 23, 2024Observed: 1.48 kcfs at 6:15PM Apr 23, 2024Observed: 1.46 kcfs at 6:30PM Apr 23, 2024Observed: 1.46 kcfs at 6:45PM Apr 23, 2024Observed: 1.45 kcfs at 7:00PM Apr 23, 2024Observed: 1.44 kcfs at 7:15PM Apr 23, 2024Observed: 1.43 kcfs at 7:30PM Apr 23, 2024Observed: 1.44 kcfs at 7:45PM Apr 23, 2024Observed: 1.43 kcfs at 8:00PM Apr 23, 2024Observed: 1.43 kcfs at 8:15PM Apr 23, 2024Observed: 1.41 kcfs at 8:30PM Apr 23, 2024Observed: 1.41 kcfs at 8:45PM Apr 23, 2024Observed: 1.42 kcfs at 9:00PM Apr 23, 2024Observed: 1.42 kcfs at 9:15PM Apr 23, 2024Observed: 1.43 kcfs at 9:30PM Apr 23, 2024Observed: 1.44 kcfs at 9:45PM Apr 23, 2024Observed: 1.42 kcfs at 10:00PM Apr 23, 2024Observed: 1.42 kcfs at 10:15PM Apr 23, 2024Observed: 1.4 kcfs at 10:30PM Apr 23, 2024Observed: 1.41 kcfs at 10:45PM Apr 23, 2024Observed: 1.41 kcfs at 11:00PM Apr 23, 2024Observed: 1.41 kcfs at 11:15PM Apr 23, 2024Observed: 1.41 kcfs at 11:30PM Apr 23, 2024Observed: 1.41 kcfs at 11:45PM Apr 23, 2024Observed: 1.41 kcfs at 12:00AM Apr 24, 2024Observed: 1.41 kcfs at 12:15AM Apr 24, 2024Observed: 1.41 kcfs at 12:30AM Apr 24, 2024Observed: 1.4 kcfs at 12:45AM Apr 24, 2024Observed: 1.41 kcfs at 1:00AM Apr 24, 2024Observed: 1.4 kcfs at 1:15AM Apr 24, 2024Observed: 1.41 kcfs at 1:30AM Apr 24, 2024Observed: 1.4 kcfs at 1:45AM Apr 24, 2024Observed: 1.4 kcfs at 2:00AM Apr 24, 2024Observed: 1.41 kcfs at 2:15AM Apr 24, 2024Observed: 1.41 kcfs at 2:30AM Apr 24, 2024Observed: 1.4 kcfs at 2:45AM Apr 24, 2024Observed: 1.41 kcfs at 3:00AM Apr 24, 2024Observed: 1.41 kcfs at 3:15AM Apr 24, 2024Observed: 1.41 kcfs at 3:30AM Apr 24, 2024Observed: 1.42 kcfs at 3:45AM Apr 24, 2024Observed: 1.41 kcfs at 4:00AM Apr 24, 2024Observed: 1.42 kcfs at 4:15AM Apr 24, 2024Observed: 1.42 kcfs at 4:30AM Apr 24, 2024Observed: 1.42 kcfs at 4:45AM Apr 24, 2024Observed: 1.42 kcfs at 5:00AM Apr 24, 2024Observed: 1.42 kcfs at 5:15AM Apr 24, 2024Observed: 1.42 kcfs at 5:30AM Apr 24, 2024Observed: 1.42 kcfs at 5:45AM Apr 24, 2024Observed: 1.43 kcfs at 6:00AM Apr 24, 2024Observed: 1.43 kcfs at 6:15AM Apr 24, 2024Observed: 1.43 kcfs at 6:30AM Apr 24, 2024Observed: 1.43 kcfs at 6:45AM Apr 24, 2024Observed: 1.43 kcfs at 7:00AM Apr 24, 2024Observed: 1.45 kcfs at 7:15AM Apr 24, 2024Observed: 1.44 kcfs at 7:30AM Apr 24, 2024Observed: 1.45 kcfs at 7:45AM Apr 24, 2024Observed: 1.46 kcfs at 8:00AM Apr 24, 2024Observed: 1.46 kcfs at 8:15AM Apr 24, 2024Observed: 1.45 kcfs at 8:30AM Apr 24, 2024Observed: 1.45 kcfs at 8:45AM Apr 24, 2024Observed: 1.46 kcfs at 9:00AM Apr 24, 2024Observed: 1.47 kcfs at 9:15AM Apr 24, 2024Observed: 1.47 kcfs at 9:30AM Apr 24, 2024Observed: 1.46 kcfs at 9:45AM Apr 24, 2024Observed: 1.46 kcfs at 10:00AM Apr 24, 2024Observed: 1.47 kcfs at 10:15AM Apr 24, 2024Observed: 1.47 kcfs at 10:30AM Apr 24, 2024Observed: 1.48 kcfs at 10:45AM Apr 24, 2024Observed: 1.48 kcfs at 11:00AM Apr 24, 2024Observed: 1.48 kcfs at 11:15AM Apr 24, 2024Observed: 1.48 kcfs at 11:30AM Apr 24, 2024Observed: 1.48 kcfs at 11:45AM Apr 24, 2024Observed: 1.48 kcfs at 12:00PM Apr 24, 2024Observed: 1.48 kcfs at 12:15PM Apr 24, 2024Observed: 1.49 kcfs at 12:30PM Apr 24, 2024Observed: 1.48 kcfs at 1:30PM Apr 24, 2024Observed: 1.48 kcfs at 1:45PM Apr 24, 2024Observed: 1.48 kcfs at 2:00PM Apr 24, 2024Observed: 1.48 kcfs at 2:15PM Apr 24, 2024Observed: 1.49 kcfs at 2:30PM Apr 24, 2024Observed: 1.49 kcfs at 2:45PM Apr 24, 2024Observed: 1.48 kcfs at 3:00PM Apr 24, 2024Observed: 1.48 kcfs at 3:15PM Apr 24, 2024Observed: 1.48 kcfs at 3:30PM Apr 24, 2024Observed: 1.49 kcfs at 3:45PM Apr 24, 2024Observed: 1.48 kcfs at 4:00PM Apr 24, 2024Observed: 1.49 kcfs at 4:15PM Apr 24, 2024Observed: 1.48 kcfs at 4:30PM Apr 24, 2024Observed: 1.48 kcfs at 4:45PM Apr 24, 2024Observed: 1.48 kcfs at 5:00PM Apr 24, 2024Observed: 1.5 kcfs at 5:15PM Apr 24, 2024Observed: 1.48 kcfs at 5:30PM Apr 24, 2024Observed: 1.49 kcfs at 5:45PM Apr 24, 2024Observed: 1.49 kcfs at 6:00PM Apr 24, 2024Observed: 1.49 kcfs at 6:15PM Apr 24, 2024Observed: 1.49 kcfs at 6:30PM Apr 24, 2024Observed: 1.49 kcfs at 6:45PM Apr 24, 2024Observed: 1.49 kcfs at 7:00PM Apr 24, 2024Observed: 1.5 kcfs at 7:15PM Apr 24, 2024Observed: 1.5 kcfs at 7:30PM Apr 24, 2024Forecast: 1.49 kcfs 11:00PM Apr 24, 2024Forecast: 1.64 kcfs 5:00AM Apr 25, 2024Forecast: 2.11 kcfs 11:00AM Apr 25, 2024Forecast: 2.99 kcfs 5:00PM Apr 25, 2024Forecast: 4.13 kcfs 11:00PM Apr 25, 2024Forecast: 5.06 kcfs 5:00AM Apr 26, 2024Highest Forecast: 5.51 kcfs 11:00AM Apr 26, 2024Forecast: 5.43 kcfs 5:00PM Apr 26, 2024Forecast: 4.98 kcfs 11:00PM Apr 26, 2024Forecast: 4.49 kcfs 5:00AM Apr 27, 2024Forecast: 4.05 kcfs 11:00AM Apr 27, 2024Forecast: 3.65 kcfs 5:00PM Apr 27, 2024Forecast: 3.33 kcfs 11:00PM Apr 27, 2024Forecast: 3.1 kcfs 5:00AM Apr 28, 2024Forecast: 2.98 kcfs 11:00AM Apr 28, 2024Forecast: 3.15 kcfs 5:00PM Apr 28, 2024Forecast: 3.7 kcfs 11:00PM Apr 28, 2024Forecast: 4.36 kcfs 5:00AM Apr 29, 2024Forecast: 4.67 kcfs 11:00AM Apr 29, 2024Forecast: 4.51 kcfs 5:00PM Apr 29, 2024Forecast: 4.17 kcfs 11:00PM Apr 29, 2024Forecast: 3.84 kcfs 5:00AM Apr 30, 2024Forecast: 3.44 kcfs 11:00AM Apr 30, 2024Forecast: 3.08 kcfs 5:00PM Apr 30, 2024Forecast: 3 kcfs 11:00PM Apr 30, 2024Forecast: 3.14 kcfs 5:00AM May 01, 2024Forecast: 3.18 kcfs 11:00AM May 01, 2024Forecast: 3.07 kcfs 5:00PM May 01, 2024USGS--Water Resources of the United StatesSQUW1(plotting QRIRZ) Graph Created (8:50PM Apr 24, 2024)ObservedForecast (issued 3:39PM Apr 24)Latest observed value: 1.5 kcfs at 7:30 PM PDT 24-Apr-2024. Flood Flow is 20 kcfs
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Snoqualmie River at Snoqualmie Falls are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Carnation
Flood Categories (in KCFS)
Major Flood Flow: 41
Moderate Flood Flow: 31
Flood Flow: 20
Action Flow: 15
Low Stage (in feet): -9999

Historic Crests
(1) 78,800 cfs on 11/24/1990
(2) 61,000 cfs on 11/23/1959
(3) 60,700 cfs on 01/07/2009
(4) 58,100 cfs on 11/24/1986
(5) 54,900 cfs on 11/07/2006 (P)
(6) 53,800 cfs on 12/02/1977
(7) 51,800 cfs on 12/03/1975
(8) 51,700 cfs on 02/09/1996
(9) 50,200 cfs on 11/29/1995 (P)
(10) 50,100 cfs on 01/05/2015
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 23,600 cfs on 12/06/2023 (P)
(2) 36,700 cfs on 11/05/2022 (P)
(3) 25,800 cfs on 01/12/2022 (P)
(4) 22,000 cfs on 01/13/2021 (P)
(5) 37,500 cfs on 02/01/2020 (P)
(6) 19,700 cfs on 12/30/2018 (P)
(7) 28,100 cfs on 11/23/2017 (P)
(8) 23,580 cfs on 11/22/2017 (P)
(9) 33,880 cfs on 10/22/2017 (P)
(10) 21,900 cfs on 10/20/2016 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
70000 the Snoqualmie River will cause severe near record flooding from the town of Snoqualmie downstream through Fall City. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds to a phase 4 flood in the King County flood system.
55000 the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
41000 the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
30000 the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
20000 the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
12000 the Snoqualmie River will spill over its banks between the town of Snoqualmie and Fall City...covering pasture lands and several roads along the river. This river level on the Snoqualmie corresponds roughly to a phase 2 flood in the King County flood system.
About This Location Collapse

Latitude: 47.545012° N, Longitude: 121.842336° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS flow Not Available Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 120 ft Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
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