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Weather Forecast Office Seattle, WA Northwest River Forecast Center
Hydrograph River at a Glance Download
Snoqualmie River near Carnation Stage (ft)Flow (kcfs)Observed: 47.67 ft at 3:00AM May 20, 2013Observed: 47.67 ft at 3:30AM May 20, 2013Observed: 47.66 ft at 4:00AM May 20, 2013Observed: 47.66 ft at 4:30AM May 20, 2013Observed: 47.66 ft at 5:00AM May 20, 2013Observed: 47.66 ft at 5:30AM May 20, 2013Observed: 47.66 ft at 6:00AM May 20, 2013Observed: 47.66 ft at 6:30AM May 20, 2013Observed: 47.66 ft at 7:00AM May 20, 2013Observed: 47.65 ft at 7:30AM May 20, 2013Observed: 47.65 ft at 8:00AM May 20, 2013Observed: 47.65 ft at 8:30AM May 20, 2013Observed: 47.65 ft at 9:00AM May 20, 2013Observed: 47.65 ft at 9:30AM May 20, 2013Observed: 47.65 ft at 10:00AM May 20, 2013Observed: 47.64 ft at 10:30AM May 20, 2013Observed: 47.64 ft at 11:00AM May 20, 2013Observed: 47.64 ft at 11:30AM May 20, 2013Observed: 47.64 ft at 12:00PM May 20, 2013Observed: 47.63 ft at 12:30PM May 20, 2013Observed: 47.63 ft at 1:00PM May 20, 2013Observed: 47.63 ft at 1:30PM May 20, 2013Observed: 47.62 ft at 2:00PM May 20, 2013Observed: 47.62 ft at 2:30PM May 20, 2013Observed: 47.62 ft at 3:00PM May 20, 2013Observed: 47.61 ft at 3:30PM May 20, 2013Observed: 47.61 ft at 4:00PM May 20, 2013Observed: 47.61 ft at 4:30PM May 20, 2013Observed: 47.6 ft at 5:00PM May 20, 2013Observed: 47.59 ft at 5:30PM May 20, 2013Observed: 47.58 ft at 6:00PM May 20, 2013Observed: 47.58 ft at 6:30PM May 20, 2013Observed: 47.57 ft at 7:00PM May 20, 2013Observed: 47.57 ft at 7:30PM May 20, 2013Observed: 47.57 ft at 8:00PM May 20, 2013Observed: 47.56 ft at 8:30PM May 20, 2013Observed: 47.55 ft at 9:00PM May 20, 2013Observed: 47.54 ft at 9:30PM May 20, 2013Observed: 47.54 ft at 10:00PM May 20, 2013Observed: 47.54 ft at 10:30PM May 20, 2013Observed: 47.54 ft at 11:00PM May 20, 2013Observed: 47.53 ft at 11:30PM May 20, 2013Observed: 47.53 ft at 12:00AM May 21, 2013Observed: 47.53 ft at 12:30AM May 21, 2013Observed: 47.53 ft at 1:00AM May 21, 2013Observed: 47.53 ft at 1:30AM May 21, 2013Observed: 47.54 ft at 2:00AM May 21, 2013Observed: 47.54 ft at 2:30AM May 21, 2013Observed: 47.54 ft at 3:00AM May 21, 2013Observed: 47.55 ft at 3:30AM May 21, 2013Observed: 47.57 ft at 4:00AM May 21, 2013Observed: 47.57 ft at 4:30AM May 21, 2013Observed: 47.58 ft at 5:00AM May 21, 2013Observed: 47.61 ft at 5:30AM May 21, 2013Observed: 47.62 ft at 6:00AM May 21, 2013Observed: 47.63 ft at 6:30AM May 21, 2013Observed: 47.65 ft at 7:00AM May 21, 2013Observed: 47.66 ft at 7:30AM May 21, 2013Observed: 47.68 ft at 8:00AM May 21, 2013Observed: 47.69 ft at 8:30AM May 21, 2013Observed: 47.7 ft at 9:00AM May 21, 2013Observed: 47.72 ft at 9:30AM May 21, 2013Observed: 47.73 ft at 10:00AM May 21, 2013Observed: 47.74 ft at 10:30AM May 21, 2013Observed: 47.74 ft at 11:00AM May 21, 2013Observed: 47.76 ft at 11:30AM May 21, 2013Observed: 47.77 ft at 12:00PM May 21, 2013Observed: 47.77 ft at 12:30PM May 21, 2013Observed: 47.78 ft at 1:00PM May 21, 2013Observed: 47.78 ft at 1:30PM May 21, 2013Observed: 47.79 ft at 2:00PM May 21, 2013Observed: 47.8 ft at 2:30PM May 21, 2013Observed: 47.8 ft at 3:00PM May 21, 2013Observed: 47.8 ft at 3:30PM May 21, 2013Observed: 47.8 ft at 4:00PM May 21, 2013Observed: 47.8 ft at 4:30PM May 21, 2013Observed: 47.81 ft at 5:00PM May 21, 2013Observed: 47.81 ft at 5:30PM May 21, 2013Observed: 47.81 ft at 6:00PM May 21, 2013Observed: 47.81 ft at 6:30PM May 21, 2013Observed: 47.81 ft at 7:00PM May 21, 2013Observed: 47.81 ft at 7:30PM May 21, 2013Observed: 47.81 ft at 8:00PM May 21, 2013Observed: 47.81 ft at 8:30PM May 21, 2013Observed: 47.81 ft at 9:00PM May 21, 2013Observed: 47.81 ft at 9:30PM May 21, 2013Observed: 47.8 ft at 10:00PM May 21, 2013Observed: 47.8 ft at 10:30PM May 21, 2013Observed: 47.8 ft at 11:00PM May 21, 2013Observed: 47.81 ft at 11:30PM May 21, 2013Observed: 47.81 ft at 12:00AM May 22, 2013Observed: 47.81 ft at 12:30AM May 22, 2013Observed: 47.82 ft at 1:00AM May 22, 2013Observed: 47.83 ft at 1:30AM May 22, 2013Observed: 47.84 ft at 2:00AM May 22, 2013Observed: 47.85 ft at 2:30AM May 22, 2013Observed: 47.85 ft at 3:00AM May 22, 2013Observed: 47.86 ft at 3:30AM May 22, 2013Observed: 47.86 ft at 4:00AM May 22, 2013Observed: 47.87 ft at 4:30AM May 22, 2013Observed: 47.89 ft at 5:00AM May 22, 2013Observed: 47.89 ft at 5:30AM May 22, 2013Observed: 47.9 ft at 6:00AM May 22, 2013Observed: 47.9 ft at 6:30AM May 22, 2013Observed: 47.92 ft at 7:00AM May 22, 2013Observed: 47.93 ft at 7:30AM May 22, 2013Observed: 47.93 ft at 8:00AM May 22, 2013Observed: 47.94 ft at 8:30AM May 22, 2013Observed: 47.96 ft at 9:00AM May 22, 2013Observed: 47.97 ft at 9:30AM May 22, 2013Observed: 47.98 ft at 10:00AM May 22, 2013Observed: 48 ft at 10:30AM May 22, 2013Observed: 48.02 ft at 11:00AM May 22, 2013Observed: 48.04 ft at 11:30AM May 22, 2013Observed: 48.05 ft at 12:00PM May 22, 2013Observed: 48.07 ft at 12:30PM May 22, 2013Observed: 48.08 ft at 1:00PM May 22, 2013Observed: 48.08 ft at 1:30PM May 22, 2013Highest Observation: 48.09 ft at 2:00PM May 22, 2013Highest Observation: 48.09 ft at 2:30PM May 22, 2013Highest Observation: 48.09 ft at 3:00PM May 22, 2013Highest Observation: 48.09 ft at 3:30PM May 22, 2013Highest Observation: 48.09 ft at 4:00PM May 22, 2013Highest Observation: 48.09 ft at 4:30PM May 22, 2013Observed: 48.08 ft at 5:00PM May 22, 2013Observed: 48.07 ft at 5:30PM May 22, 2013Observed: 48.06 ft at 6:00PM May 22, 2013Observed: 48.06 ft at 6:30PM May 22, 2013Observed: 48.05 ft at 7:00PM May 22, 2013Observed: 48.03 ft at 7:30PM May 22, 2013Observed: 48.02 ft at 8:00PM May 22, 2013Observed: 48.01 ft at 8:30PM May 22, 2013Observed: 48 ft at 9:00PM May 22, 2013Observed: 47.98 ft at 9:30PM May 22, 2013Observed: 47.97 ft at 10:00PM May 22, 2013Observed: 47.97 ft at 10:30PM May 22, 2013Observed: 47.95 ft at 11:00PM May 22, 2013Observed: 47.94 ft at 11:30PM May 22, 2013Observed: 47.94 ft at 12:00AM May 23, 2013Observed: 47.94 ft at 12:30AM May 23, 2013Observed: 47.93 ft at 1:00AM May 23, 2013Observed: 47.93 ft at 1:30AM May 23, 2013Forecast: 48.22 ft 5:00AM May 23, 2013Highest Forecast: 48.24 ft 11:00AM May 23, 2013Forecast: 48.17 ft 5:00PM May 23, 2013Forecast: 48.05 ft 11:00PM May 23, 2013Forecast: 48.05 ft 5:00AM May 24, 2013Forecast: 48.05 ft 11:00AM May 24, 2013Forecast: 47.92 ft 5:00PM May 24, 2013Forecast: 47.76 ft 11:00PM May 24, 2013Forecast: 47.64 ft 5:00AM May 25, 2013Forecast: 47.56 ft 11:00AM May 25, 2013Forecast: 47.46 ft 5:00PM May 25, 2013Forecast: 47.4 ft 11:00PM May 25, 2013USGS--Water Resources of the United StatesCRNW1(plotting HGIRP) Graph Created (2:43AM May 23, 2013)ObservedForecast (issued 1:11PM May 22)Latest observed value: 47.93 ft at 1:30 AM PDT 23-May-2013. Flood Stage is 54 ft
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NOTE: Forecasts for the Snoqualmie River near Carnation are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Snoqualmie Falls Upstream Gauge Downstream Gauge Downstream Gauge - near Monroe
Flood Categories (in feet)
Major Flood Stage:58
Moderate Flood Stage:56
Flood Stage:54
Action Stage:0

Historical Crests
(1) 62.31 ft on 01/08/2009
(2) 61.28 ft on 11/07/2006
(3) 60.70 ft on 11/24/1990
(4) 60.54 ft on 11/13/2008
(5) 60.34 ft on 02/09/1996
(6) 60.30 ft on 11/29/1995
(7) 59.93 ft on 11/13/1932
(8) 59.89 ft on 11/24/1986
(9) 59.88 ft on 02/27/1932
(10) 59.48 ft on 11/10/1990
Show More Historical Crests

Low Water Records
Legend
Gauge Location
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
60 the Snoqualmie River will cause severe near record flooding from Fall City downstream through Carnation and Duvall. Deep and swift flood waters will inundate many farms...residential areas...and roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin.
58 the Snoqualmie River will cause major flooding from Fall City downstream through Carnation and Duvall. Deep and swift flood waters will inundate many farms...residential areas...and roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin.
56 the Snoqualmie River will cause widespread flooding from Fall City downstream through Carnation and Duvall...inundating much of the farm land and numerous roads.
54 the Snoqualmie River will flood much of the farm land and several roads from Fall City downstream through Carnation and Duvall.
51 the Snoqualmie River will spill over its banks from Fall City downstream through Carnation and Duvall...with shallow water over some farm land and several roads.
About This Location Collapse

Latitude: 47.666111° N, Longitude: 121.924167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 54 ft 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 0 ft 54 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
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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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Seattle, WA 98115-6349
(206) 526-6087
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