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Hydrograph River at a Glance Download
Skykomish River near Gold Bar Stage (ft)Flow (kcfs)Observed: 7.27 ft at 4:15AM Apr 17, 2021Observed: 7.28 ft at 4:30AM Apr 17, 2021Observed: 7.29 ft at 4:45AM Apr 17, 2021Observed: 7.29 ft at 5:00AM Apr 17, 2021Observed: 7.29 ft at 5:15AM Apr 17, 2021Observed: 7.33 ft at 5:30AM Apr 17, 2021Observed: 7.34 ft at 5:45AM Apr 17, 2021Observed: 7.36 ft at 6:00AM Apr 17, 2021Observed: 7.35 ft at 6:15AM Apr 17, 2021Observed: 7.35 ft at 6:30AM Apr 17, 2021Observed: 7.38 ft at 6:45AM Apr 17, 2021Observed: 7.37 ft at 7:00AM Apr 17, 2021Observed: 7.38 ft at 7:15AM Apr 17, 2021Observed: 7.39 ft at 7:30AM Apr 17, 2021Observed: 7.39 ft at 7:45AM Apr 17, 2021Observed: 7.39 ft at 8:00AM Apr 17, 2021Observed: 7.39 ft at 8:15AM Apr 17, 2021Observed: 7.41 ft at 8:30AM Apr 17, 2021Observed: 7.4 ft at 8:45AM Apr 17, 2021Observed: 7.4 ft at 9:00AM Apr 17, 2021Observed: 7.41 ft at 9:15AM Apr 17, 2021Observed: 7.4 ft at 9:30AM Apr 17, 2021Observed: 7.44 ft at 9:45AM Apr 17, 2021Observed: 7.4 ft at 10:00AM Apr 17, 2021Observed: 7.43 ft at 10:15AM Apr 17, 2021Observed: 7.44 ft at 10:30AM Apr 17, 2021Observed: 7.41 ft at 10:45AM Apr 17, 2021Observed: 7.44 ft at 11:00AM Apr 17, 2021Observed: 7.43 ft at 11:15AM Apr 17, 2021Observed: 7.42 ft at 11:30AM Apr 17, 2021Observed: 7.42 ft at 11:45AM Apr 17, 2021Observed: 7.42 ft at 12:00PM Apr 17, 2021Observed: 7.41 ft at 12:15PM Apr 17, 2021Observed: 7.44 ft at 12:30PM Apr 17, 2021Observed: 7.43 ft at 12:45PM Apr 17, 2021Observed: 7.43 ft at 1:00PM Apr 17, 2021Observed: 7.44 ft at 1:15PM Apr 17, 2021Observed: 7.44 ft at 1:30PM Apr 17, 2021Observed: 7.44 ft at 1:45PM Apr 17, 2021Observed: 7.43 ft at 2:00PM Apr 17, 2021Observed: 7.44 ft at 2:15PM Apr 17, 2021Observed: 7.43 ft at 2:30PM Apr 17, 2021Observed: 7.44 ft at 2:45PM Apr 17, 2021Observed: 7.45 ft at 3:00PM Apr 17, 2021Observed: 7.44 ft at 3:15PM Apr 17, 2021Observed: 7.45 ft at 3:30PM Apr 17, 2021Observed: 7.44 ft at 3:45PM Apr 17, 2021Observed: 7.45 ft at 4:00PM Apr 17, 2021Observed: 7.43 ft at 4:15PM Apr 17, 2021Observed: 7.42 ft at 4:30PM Apr 17, 2021Observed: 7.47 ft at 4:45PM Apr 17, 2021Observed: 7.44 ft at 5:00PM Apr 17, 2021Observed: 7.48 ft at 5:15PM Apr 17, 2021Observed: 7.46 ft at 5:30PM Apr 17, 2021Observed: 7.46 ft at 5:45PM Apr 17, 2021Observed: 7.49 ft at 6:00PM Apr 17, 2021Observed: 7.51 ft at 6:15PM Apr 17, 2021Observed: 7.5 ft at 6:30PM Apr 17, 2021Observed: 7.49 ft at 6:45PM Apr 17, 2021Observed: 7.5 ft at 7:00PM Apr 17, 2021Observed: 7.53 ft at 7:15PM Apr 17, 2021Observed: 7.53 ft at 7:30PM Apr 17, 2021Observed: 7.55 ft at 7:45PM Apr 17, 2021Observed: 7.58 ft at 8:00PM Apr 17, 2021Observed: 7.6 ft at 8:15PM Apr 17, 2021Observed: 7.59 ft at 8:30PM Apr 17, 2021Observed: 7.6 ft at 8:45PM Apr 17, 2021Observed: 7.62 ft at 9:00PM Apr 17, 2021Observed: 7.61 ft at 9:15PM Apr 17, 2021Observed: 7.65 ft at 9:30PM Apr 17, 2021Observed: 7.66 ft at 9:45PM Apr 17, 2021Observed: 7.68 ft at 10:00PM Apr 17, 2021Observed: 7.71 ft at 10:15PM Apr 17, 2021Observed: 7.74 ft at 10:30PM Apr 17, 2021Observed: 7.75 ft at 10:45PM Apr 17, 2021Observed: 7.75 ft at 11:00PM Apr 17, 2021Observed: 7.8 ft at 11:15PM Apr 17, 2021Observed: 7.81 ft at 11:30PM Apr 17, 2021Observed: 7.82 ft at 11:45PM Apr 17, 2021Observed: 7.85 ft at 12:00AM Apr 18, 2021Observed: 7.88 ft at 12:15AM Apr 18, 2021Observed: 7.9 ft at 12:30AM Apr 18, 2021Observed: 7.89 ft at 12:45AM Apr 18, 2021Observed: 7.93 ft at 1:00AM Apr 18, 2021Observed: 7.98 ft at 1:15AM Apr 18, 2021Observed: 7.99 ft at 1:30AM Apr 18, 2021Observed: 8.02 ft at 1:45AM Apr 18, 2021Observed: 8.03 ft at 2:00AM Apr 18, 2021Observed: 8.03 ft at 2:15AM Apr 18, 2021Observed: 8.05 ft at 2:30AM Apr 18, 2021Observed: 8.08 ft at 2:45AM Apr 18, 2021Observed: 8.09 ft at 3:00AM Apr 18, 2021Observed: 8.11 ft at 3:15AM Apr 18, 2021Observed: 8.11 ft at 3:30AM Apr 18, 2021Observed: 8.12 ft at 3:45AM Apr 18, 2021Observed: 8.15 ft at 4:00AM Apr 18, 2021Observed: 8.18 ft at 4:15AM Apr 18, 2021Observed: 8.17 ft at 4:30AM Apr 18, 2021Observed: 8.17 ft at 4:45AM Apr 18, 2021Observed: 8.18 ft at 5:00AM Apr 18, 2021Observed: 8.2 ft at 5:15AM Apr 18, 2021Observed: 8.2 ft at 5:30AM Apr 18, 2021Observed: 8.2 ft at 5:45AM Apr 18, 2021Observed: 8.2 ft at 6:00AM Apr 18, 2021Observed: 8.23 ft at 6:15AM Apr 18, 2021Observed: 8.23 ft at 6:30AM Apr 18, 2021Observed: 8.24 ft at 6:45AM Apr 18, 2021Observed: 8.26 ft at 7:00AM Apr 18, 2021Observed: 8.27 ft at 7:15AM Apr 18, 2021Observed: 8.27 ft at 7:30AM Apr 18, 2021Observed: 8.25 ft at 7:45AM Apr 18, 2021Observed: 8.27 ft at 8:00AM Apr 18, 2021Observed: 8.27 ft at 8:15AM Apr 18, 2021Observed: 8.26 ft at 8:30AM Apr 18, 2021Observed: 8.27 ft at 8:45AM Apr 18, 2021Observed: 8.26 ft at 9:00AM Apr 18, 2021Observed: 8.27 ft at 9:15AM Apr 18, 2021Observed: 8.27 ft at 9:30AM Apr 18, 2021Observed: 8.24 ft at 9:45AM Apr 18, 2021Observed: 8.26 ft at 10:00AM Apr 18, 2021Observed: 8.27 ft at 10:15AM Apr 18, 2021Observed: 8.28 ft at 10:30AM Apr 18, 2021Observed: 8.26 ft at 10:45AM Apr 18, 2021Observed: 8.28 ft at 11:00AM Apr 18, 2021Observed: 8.28 ft at 11:15AM Apr 18, 2021Observed: 8.26 ft at 11:30AM Apr 18, 2021Observed: 8.25 ft at 11:45AM Apr 18, 2021Observed: 8.25 ft at 12:00PM Apr 18, 2021Observed: 8.28 ft at 12:15PM Apr 18, 2021Observed: 8.26 ft at 12:30PM Apr 18, 2021Observed: 8.28 ft at 12:45PM Apr 18, 2021Observed: 8.25 ft at 1:00PM Apr 18, 2021Observed: 8.27 ft at 1:15PM Apr 18, 2021Observed: 8.26 ft at 1:30PM Apr 18, 2021Observed: 8.25 ft at 1:45PM Apr 18, 2021Observed: 8.25 ft at 2:00PM Apr 18, 2021Observed: 8.22 ft at 2:15PM Apr 18, 2021Observed: 8.23 ft at 2:30PM Apr 18, 2021Observed: 8.25 ft at 2:45PM Apr 18, 2021Observed: 8.25 ft at 3:00PM Apr 18, 2021Observed: 8.25 ft at 3:15PM Apr 18, 2021Observed: 8.27 ft at 3:30PM Apr 18, 2021Observed: 8.25 ft at 3:45PM Apr 18, 2021Observed: 8.24 ft at 4:00PM Apr 18, 2021Observed: 8.26 ft at 4:15PM Apr 18, 2021Observed: 8.25 ft at 4:30PM Apr 18, 2021Observed: 8.25 ft at 4:45PM Apr 18, 2021Observed: 8.26 ft at 5:00PM Apr 18, 2021Observed: 8.24 ft at 5:15PM Apr 18, 2021Observed: 8.27 ft at 5:30PM Apr 18, 2021Observed: 8.26 ft at 5:45PM Apr 18, 2021Observed: 8.26 ft at 6:00PM Apr 18, 2021Observed: 8.29 ft at 6:15PM Apr 18, 2021Observed: 8.28 ft at 6:30PM Apr 18, 2021Observed: 8.3 ft at 6:45PM Apr 18, 2021Observed: 8.3 ft at 7:00PM Apr 18, 2021Observed: 8.3 ft at 7:15PM Apr 18, 2021Observed: 8.3 ft at 7:30PM Apr 18, 2021Observed: 8.32 ft at 7:45PM Apr 18, 2021Observed: 8.35 ft at 8:00PM Apr 18, 2021Observed: 8.35 ft at 8:15PM Apr 18, 2021Observed: 8.39 ft at 8:30PM Apr 18, 2021Observed: 8.38 ft at 8:45PM Apr 18, 2021Observed: 8.38 ft at 9:00PM Apr 18, 2021Observed: 8.42 ft at 9:15PM Apr 18, 2021Observed: 8.44 ft at 9:30PM Apr 18, 2021Observed: 8.45 ft at 9:45PM Apr 18, 2021Observed: 8.48 ft at 10:00PM Apr 18, 2021Observed: 8.5 ft at 10:15PM Apr 18, 2021Observed: 8.55 ft at 10:30PM Apr 18, 2021Observed: 8.53 ft at 10:45PM Apr 18, 2021Observed: 8.57 ft at 11:00PM Apr 18, 2021Observed: 8.56 ft at 11:15PM Apr 18, 2021Observed: 8.6 ft at 11:30PM Apr 18, 2021Observed: 8.62 ft at 11:45PM Apr 18, 2021Observed: 8.6 ft at 12:00AM Apr 19, 2021Observed: 8.62 ft at 12:15AM Apr 19, 2021Observed: 8.66 ft at 12:30AM Apr 19, 2021Observed: 8.69 ft at 12:45AM Apr 19, 2021Observed: 8.7 ft at 1:00AM Apr 19, 2021Observed: 8.73 ft at 1:15AM Apr 19, 2021Observed: 8.73 ft at 1:30AM Apr 19, 2021Observed: 8.74 ft at 1:45AM Apr 19, 2021Observed: 8.77 ft at 2:00AM Apr 19, 2021Observed: 8.77 ft at 2:15AM Apr 19, 2021Observed: 8.78 ft at 2:30AM Apr 19, 2021Observed: 8.81 ft at 2:45AM Apr 19, 2021Observed: 8.82 ft at 3:00AM Apr 19, 2021Observed: 8.78 ft at 3:15AM Apr 19, 2021Observed: 8.82 ft at 3:30AM Apr 19, 2021Observed: 8.8 ft at 3:45AM Apr 19, 2021Observed: 8.85 ft at 4:00AM Apr 19, 2021Observed: 8.84 ft at 4:15AM Apr 19, 2021Highest Observation: 8.86 ft at 4:30AM Apr 19, 2021Observed: 8.82 ft at 4:45AM Apr 19, 2021Highest Observation: 8.86 ft at 5:00AM Apr 19, 2021Observed: 8.83 ft at 5:15AM Apr 19, 2021Observed: 8.85 ft at 5:30AM Apr 19, 2021Observed: 8.85 ft at 5:45AM Apr 19, 2021Highest Observation: 8.86 ft at 6:00AM Apr 19, 2021Highest Observation: 8.86 ft at 6:15AM Apr 19, 2021Observed: 8.84 ft at 6:30AM Apr 19, 2021Observed: 8.83 ft at 6:45AM Apr 19, 2021Highest Observation: 8.86 ft at 7:00AM Apr 19, 2021Observed: 8.84 ft at 7:15AM Apr 19, 2021Highest Observation: 8.86 ft at 7:30AM Apr 19, 2021Observed: 8.83 ft at 7:45AM Apr 19, 2021Highest Observation: 8.86 ft at 8:00AM Apr 19, 2021Observed: 8.82 ft at 8:15AM Apr 19, 2021Observed: 8.84 ft at 8:30AM Apr 19, 2021Observed: 8.84 ft at 8:45AM Apr 19, 2021Highest Observation: 8.86 ft at 9:00AM Apr 19, 2021Observed: 8.82 ft at 9:15AM Apr 19, 2021Observed: 8.82 ft at 9:30AM Apr 19, 2021Observed: 8.83 ft at 9:45AM Apr 19, 2021Observed: 8.81 ft at 10:00AM Apr 19, 2021Observed: 8.81 ft at 10:15AM Apr 19, 2021Observed: 8.8 ft at 10:30AM Apr 19, 2021Observed: 8.81 ft at 10:45AM Apr 19, 2021Observed: 8.78 ft at 11:00AM Apr 19, 2021Observed: 8.8 ft at 11:15AM Apr 19, 2021Observed: 8.78 ft at 11:30AM Apr 19, 2021Observed: 8.78 ft at 11:45AM Apr 19, 2021Observed: 8.75 ft at 12:00PM Apr 19, 2021Observed: 8.74 ft at 12:15PM Apr 19, 2021Observed: 8.76 ft at 12:30PM Apr 19, 2021Observed: 8.73 ft at 12:45PM Apr 19, 2021Observed: 8.74 ft at 1:00PM Apr 19, 2021Observed: 8.73 ft at 1:15PM Apr 19, 2021Observed: 8.74 ft at 1:30PM Apr 19, 2021Observed: 8.72 ft at 1:45PM Apr 19, 2021Observed: 8.71 ft at 2:00PM Apr 19, 2021Observed: 8.68 ft at 2:15PM Apr 19, 2021Observed: 8.72 ft at 2:30PM Apr 19, 2021Observed: 8.68 ft at 2:45PM Apr 19, 2021Observed: 8.67 ft at 3:00PM Apr 19, 2021Observed: 8.7 ft at 3:15PM Apr 19, 2021Observed: 8.7 ft at 3:30PM Apr 19, 2021Observed: 8.67 ft at 3:45PM Apr 19, 2021Observed: 8.66 ft at 4:00PM Apr 19, 2021Observed: 8.63 ft at 4:15PM Apr 19, 2021Observed: 8.65 ft at 4:30PM Apr 19, 2021Observed: 8.63 ft at 4:45PM Apr 19, 2021Observed: 8.64 ft at 5:00PM Apr 19, 2021Observed: 8.63 ft at 5:15PM Apr 19, 2021Observed: 8.63 ft at 5:30PM Apr 19, 2021Observed: 8.6 ft at 5:45PM Apr 19, 2021Observed: 8.61 ft at 6:00PM Apr 19, 2021Observed: 8.63 ft at 6:15PM Apr 19, 2021Observed: 8.63 ft at 6:30PM Apr 19, 2021Observed: 8.63 ft at 6:45PM Apr 19, 2021Observed: 8.62 ft at 7:00PM Apr 19, 2021Observed: 8.63 ft at 7:15PM Apr 19, 2021Observed: 8.63 ft at 7:30PM Apr 19, 2021Observed: 8.65 ft at 7:45PM Apr 19, 2021Observed: 8.64 ft at 8:00PM Apr 19, 2021Observed: 8.65 ft at 8:15PM Apr 19, 2021Observed: 8.65 ft at 8:30PM Apr 19, 2021Observed: 8.63 ft at 8:45PM Apr 19, 2021Observed: 8.62 ft at 9:00PM Apr 19, 2021Observed: 8.63 ft at 9:15PM Apr 19, 2021Observed: 8.64 ft at 9:30PM Apr 19, 2021Observed: 8.63 ft at 9:45PM Apr 19, 2021Observed: 8.63 ft at 10:00PM Apr 19, 2021Observed: 8.66 ft at 10:15PM Apr 19, 2021Observed: 8.64 ft at 10:30PM Apr 19, 2021Observed: 8.65 ft at 10:45PM Apr 19, 2021Observed: 8.65 ft at 11:00PM Apr 19, 2021Observed: 8.66 ft at 11:15PM Apr 19, 2021Observed: 8.69 ft at 11:30PM Apr 19, 2021Observed: 8.7 ft at 11:45PM Apr 19, 2021Observed: 8.69 ft at 12:00AM Apr 20, 2021Observed: 8.68 ft at 12:15AM Apr 20, 2021Observed: 8.68 ft at 12:30AM Apr 20, 2021Observed: 8.7 ft at 12:45AM Apr 20, 2021Observed: 8.69 ft at 1:00AM Apr 20, 2021Observed: 8.73 ft at 1:15AM Apr 20, 2021Observed: 8.68 ft at 1:30AM Apr 20, 2021Observed: 8.68 ft at 1:45AM Apr 20, 2021Observed: 8.7 ft at 2:00AM Apr 20, 2021Observed: 8.69 ft at 2:15AM Apr 20, 2021Observed: 8.7 ft at 2:30AM Apr 20, 2021Observed: 8.71 ft at 2:45AM Apr 20, 2021Observed: 8.71 ft at 3:00AM Apr 20, 2021Observed: 8.72 ft at 3:15AM Apr 20, 2021Observed: 8.71 ft at 3:30AM Apr 20, 2021Highest Forecast: 8.33 ft 5:00AM Apr 20, 2021Forecast: 8.25 ft 11:00AM Apr 20, 2021Forecast: 8.15 ft 5:00PM Apr 20, 2021Forecast: 8.07 ft 11:00PM Apr 20, 2021Forecast: 8.01 ft 5:00AM Apr 21, 2021Forecast: 7.95 ft 11:00AM Apr 21, 2021Forecast: 7.88 ft 5:00PM Apr 21, 2021Forecast: 7.84 ft 11:00PM Apr 21, 2021Forecast: 7.86 ft 5:00AM Apr 22, 2021Forecast: 7.86 ft 11:00AM Apr 22, 2021Forecast: 7.84 ft 5:00PM Apr 22, 2021Forecast: 7.82 ft 11:00PM Apr 22, 2021Forecast: 7.8 ft 5:00AM Apr 23, 2021Forecast: 7.77 ft 11:00AM Apr 23, 2021Forecast: 7.72 ft 5:00PM Apr 23, 2021Forecast: 7.68 ft 11:00PM Apr 23, 2021Forecast: 7.67 ft 5:00AM Apr 24, 2021Forecast: 7.7 ft 11:00AM Apr 24, 2021Forecast: 7.77 ft 5:00PM Apr 24, 2021Forecast: 7.88 ft 11:00PM Apr 24, 2021USGS--Water Resources of the United StatesGLBW1(plotting HGIRG) Graph Created (4:05AM Apr 20, 2021)ObservedForecast (issued 2:42PM Apr 19)Latest observed value: 8.71 ft at 3:30 AM PDT 20-Apr-2021. Flood Stage is 15 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
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 Skykomish River near Gold Bar are issued routinely year-round.

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Upstream Gauge - at Skykomish Upstream Gauge Downstream Gauge Downstream Gauge - near Monroe
Flood Categories (in feet)
Major Flood Stage: 19
Moderate Flood Stage: 17
Flood Stage: 15
Action Stage: 12.2
Low Stage (in feet): 0

Historic Crests
(1) 24.51 ft on 11/06/2006
(2) 22.49 ft on 11/24/1990
(3) 22.23 ft on 11/17/2015 (P)
(4) 21.34 ft on 12/26/1980
(5) 21.28 ft on 12/21/1933
(6) 21.01 ft on 11/10/1990
(7) 20.73 ft on 10/20/2003
(8) 20.70 ft on 02/26/1932
(9) 20.24 ft on 11/29/1995
(10) 20.20 ft on 11/23/1959
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.75 ft on 02/01/2020 (P)
(2) 15.13 ft on 01/07/2020 (P)
(3) 17.95 ft on 11/24/2017
(4) 16.92 ft on 11/23/2017 (P)
(5) 17.50 ft on 11/23/2017 (P)
(6) 16.73 ft on 11/22/2017 (P)
(7) 17.22 ft on 10/22/2017 (P)
(8) 15.76 ft on 10/20/2016 (P)
(9) 19.96 ft on 12/08/2015 (P)
(10) 22.23 ft on 11/17/2015 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.73 ft on 12/01/1936
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
22 the Skykomish River will cause severe...near record flooding from Index downstream to Monroe. The river will flood many homes...cover much of the farmland...close most roads and overtop most dikes. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 22 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
21 the Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie River confluence. Deep and swift flood waters will inundate roads...residential areas...and farm land. Extensive bank erosion is likely. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 21 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
19 the Skykomish River will cause major flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will inundate portions of downtown Sultan...most roads and the Tualco Valley area near Monroe. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Skykomish River Basin. A stage of 19 feet on the Skykomish River corresponds to a Phase 4 in the Snohomish County flood program.
17 the Skykomish River will cause flooding from near Index downstream through Sultan to the Snoqualmie. Flood waters will cover numerous roads...including Ben Howard Rd...Index-Galena Rd and Tualco Loop Rd. Flooding in the town of Sultan will begin. A stage of 17 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program.
16 the Skykomish River will cause minor flooding of low pasture lands and some roads along the river...including Ben Howard road...Index-Galena Rd and Tualco Loop Rd. A stage of 16 feet on the Skykomish River corresponds to a Phase 3 in the Snohomish County flood program.
15 the Skykomish River will cause minor flooding of low pasture lands and low lying roads...including Index-Galena Rd and Tualco Loop Rd. A stage of 15 feet on the Skykomish River corresponds to a Phase 2 in the Snohomish County flood program.
About This Location Collapse

Latitude: 47.837500° N, Longitude: 121.665556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 15 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 29 209.26 ft 224.26 ft 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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Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Seattle Weather Forecast Office
7600 Sandpoint Way NE
Seattle, WA 98115-6349
(206) 526-6087
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