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Local weather forecast by
What is AHPS?
Weather Forecast Office Seattle, WA
Northwest River Forecast Center
River at a Glance
Weekly Chance of Exceeding Levels
Chance of Exceeding Levels During Entire Period
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
Datum: Not Available
NOTE: River forecasts for this location take into account past and future precipitation. Forecast stages may be different if forecast future rainfall does not occur.
NOTE: Flow values shown may be different than other data sources. All observations are preliminary data.
Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions
Forecasts for the White River at Mud Mtn. Dam Outflow are issued routinely year-round.
Scale to Flood Categories
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Flood Categories (in KCFS)
Major Flood Flow:
Moderate Flood Flow:
(1) 15,200 cfs on 11/24/1986
(2) 14,800 cfs on 12/02/1977
(3) 14,700 cfs on 12/02/1995
(4) 14,100 cfs on 01/09/1990
(5) 14,000 cfs on 02/24/1986
: Preliminary values subject to further review.
Low Water Records
Currently none available.
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
If you notice any errors in the below information, please contact our
the White River will cause major flooding above and below Mud Mountain Dam downstream. Deep and swift flood waters will inundate roads and residential areas. Damage due to erosion is likely. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the White River Basin. 14000 cfs on the White River corresponds to above phase 4 flood in the King County flood system.
the White River will cause flooding above and below Mud Mountain Dam downstream. Deep and swift flood waters will inundate roads and residential areas. Damage due to erosion is likely. 12000 cfs on the White River corresponds to a phase 4 flood in the King County flood system.
the White River will flood areas above and below Mud Mountain Dam downstream. Deep and swift flood waters will inundate roads and surround and cut off access to some homes in the city of Pacific and the Red Creek area. 10000 cfs on the White river corresponds to a phase 3 flood in the King County flood system.
the White River will spill over its banks below Mud Mountain Dam producing high water...overtopped roads...and encroaching on residences. Flood waters will threaten city of Pacific and the Red Creek area. 8000 cfs on the White River corresponds to a phase 2 flood in the King County flood system.
About This Location
Latitude: 47.140833° N, Longitude: 121.930000° W, Horizontal Datum: NAD83/WGS84
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
Older USGS topographic maps, NGVD29 benchmarks
Older USGS topographic maps, MSL benchmarks
Primary data comes from USACE. Crest history through 2003 comes from the downstream gage White River near Buckley.
River Forecast Centers
River Stage Summary
USGS Streamflow Data
USACE real time/archived data query
Inundation Mapping Locations
NWS Precipitation and River Forecasting
AHPS Iframes for Developers
Mobile iNWS for emergency management
AHPS Web Brochure
Flood Smart/National Flood Insurance Program
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,
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National Weather Service
Seattle Weather Forecast Office
7600 Sandpoint Way NE
Seattle, WA 98115-6349
Page last modified: 27-Aug-2014 7:09 PM