ALERT: November 15 update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. The outage map will be updated each Thursday. We apologize for the service interruption and hope to have the data restored as soon as possible.

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

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

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Logan River near Logan are issued routinely year-round.

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Flood Categories (in feet) Major Flood Stage: 6 Moderate Flood Stage: 5.5 Flood Stage: 5 Action Stage: 5 Low Stage (in feet): 0 Historic Crests (1) 7.50 ft on 05/24/1907 (2) 6.50 ft on 05/31/1984 (3) 5.80 ft on 05/31/1983 (4) 5.70 ft on 05/31/1986 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 4.40 ft on 06/07/2010 (2) 4.59 ft on 05/25/2009 (3) 4.20 ft on 05/21/2008 (4) 3.70 ft on 05/03/2007 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 0.00 ft on 01/21/1935

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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6	At 2466 cfs, major flooding will heavily damage the birch glen summer home development in logan canyon. Homes at the mouth of logan canyon can also expect major flood damage. Campgrounds near the river in logan canyon will be damaged and unaccessible.
5.5	At 1856 cfs, minor flooding will impact the birch glen summer home development in logan canyon. Additionally, various campgrounds throughout logan canyon will receive flood damage.
5.2	At 1550 cfs, minor flooding will impact the birch glen summer home development in logan canyon. Additionally, various campgrounds throughout logan canyon will receive flood damage.

About This Location

Latitude: 41.743333° N, Longitude: 111.781944° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 5 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 4680 ft 4685 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: Corps of Engineers (COE) Info for Logan U.S. Geological Survey (USGS) Data and Site Info for Logan

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 Flood Damage Costs/Fatalities in the US, 1903 - 2014 AHPS Web Brochure 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: 21-Dec-2016 10:36 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities