Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Salt Lake City, UT

Colorado Basin River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Not Available Chance of Exceeding Levels During Entire Period Not Available Short-term Probabilistic Guidance (Experimental) Not Available

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Printable Image About this graph Tabular Data (UTC) Tabular Data (MDT) Datum: Not Available Metadata

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Big Cottonwood Creek at Cottonwood Lane are issued routinely year-round.

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Flood Categories (in KCFS) Major Flood Flow: 1.005 Moderate Flood Flow: 0.944 Flood Flow: 0.796 Action Flow: 0.7 Low Stage (in feet): -9999 Historic Crests (1) 770 cfs on 05/29/2005 (2) 700 cfs on 05/11/1984 (P) (3) 700 cfs on 06/01/1983 (4) 593 cfs on 06/27/1997 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 770 cfs on 05/29/2005 (2) 469 cfs on 05/29/2003 (3) 458 cfs on 05/16/2001 (4) 366 cfs on 05/26/2000 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 0 cfs on 01/01/1977

Zoom Level:16 Legend FEMA Layer 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

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1005	areas along Big Cottonwood Creek from the east side of the valley to the Jordan River may experience record flooding and major damage to structures located near the stream.
944	areas along Big Cottonwood Creek from the east side of the valley to the Jordan River can expect large scale flood damage. Especially susceptible will be those areas on low lying banks and structures built close to the creek.
796	minor flooding can be expected from the east end of the valley near Big Cottonwood Creek to the Jordan River. Flooding will impact those living near the stream in low banked areas as well as structures built close to the river channel.

About This Location

Latitude: 40.656389° N, Longitude: 111.823889° W, Horizontal Datum: NAD83/WGS84 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other 4400 ft 4404.5 ft

Additional Information

Salt Lake County Gage

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Weather Forecast Office Salt Lake City Hydrology Snow Information

Collaborative Agencies 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 Salt Lake City Weather Forecast Office 2242 West North Temple Salt Lake City, UT 84116 (801) 524-5133 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:28 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities