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Weather Forecast Office Boise, ID

Northwest 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)

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

NOTE: Forecasts for the South Fork Payette River at Lowman are issued routinely year-round.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 9 Moderate Flood Stage: 8 Flood Stage: 7.5 Action Stage: 7 Low Stage (in feet): -9999 Historic Crests (1) 8.36 ft on 06/16/1974 (2) 8.12 ft on 06/05/2010 (3) 7.72 ft on 05/20/2006 (4) 7.58 ft on 06/01/1986 (5) 7.56 ft on 05/31/2017 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 6.81 ft on 06/13/2022 (2) 5.03 ft on 06/05/2021 (3) 5.92 ft on 05/31/2020 (4) 6.23 ft on 06/04/2019 (5) 6.01 ft on 05/26/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) 1.12 ft on 12/31/1994 For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 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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9	The town of Lowman will experience record flooding with significant property damage.
8.5	Houses on both sides of the river in the lower section Lowman will flood. Sandbagging will be needed to prevent major damage. Portions of North Shore Drive, Ospree Drive and River Front Road will be flooded.
8	Properties downstream from the Highway 21 Bridge along North Shore Drive and along Osprey Drive on the south bank will flood. Water will reach the first floor of houses along the south bank. Flooding will occur upstream from the Highway 21 bridge along River Front Road. Rock Creek Road and Osprey Drive will be submerged in spots.
7.5	Water will approach houses on Osprey Drive along the south bank of the river, and sand bags will be needed to protect property. Water will begin seeping into property along North Shore Drive downstream from the Highway 21 bridge. Kirkham Hot Springs Recreational Area will be underwater.
7	Water will flood portions of the Kirkham Hot Springs Recreational Area and high flows will make recreation on and near the river very hazardous. The river will be filled with logs and other floating debris and bank erosion will occur near Lowman. Residents should be aware of increased river levels and prepare to protect property.
Photos (1) South Fork of the Payette at Lowman (2) South Fork of the Payette at Lowman looking upstream (3) South Fork of the Payette at Lowman looking downstream (4) South Fork of the Payette at Lowman at 1030 CFS and 4.06 feet

About This Location

Latitude: 44.085278° N, Longitude: 115.622222° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 7.5 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other 3790 ft 3797.5 ft   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Lowman

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 Snow Information FEMA National Flood Insurance Program USGS Water Resources

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 Boise Weather Forecast Office NIFC Building 3807 Boise, ID 83705-5354 (208) 334-9860 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:28 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities