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Daily Guidance Streamflow Forecasts Using SNOTEL Data

  • Home
  • Daily Conditions
    • Daily Statewide Conditions
    • Daily River Basin Conditions
      • Kootenai
      • Flathead
      • Upper Clark Fork
      • Bitterroot
      • Lower Clark Fork
      • Jefferson
      • Madison
      • Gallatin
      • Helena Valley
      • Smith-Judith-Musselshell
      • Sun-Teton-Marias
      • St. Mary
      • Milk
      • Upper Yellowstone
      • Wyoming Basins
  • Water Supply
    • Monthly Statewide Overview
    • Monthly Basin Summaries
      • Kootenai
      • Flathead
      • Upper Clark Fork
      • Bitterroot
      • Lower Clark Fork
      • Jefferson
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      • Helena Valley
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      • Sun-Teton-Marias
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      • Upper Yellowstone
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    • Official Streamflow Forecasts
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Development and Interpretation of Daily Seasonal Water Supply Forecasts (PDF; 240 KB)

Disclaimer:  This is a completely automated and experimental (unofficial) product based on SNOTEL data. This product is not meant to replace or supersede the official forecasts produced monthly by the NRCS. The plots below are for guidance purposes only between official forecast periods. 
 

 

The following Percent & Skill, Exceedance Forecasts, Scatter Graphs are graphs derived from the Summary Output document. Excel Data is also found in the Summary Output document.

  • Big Goose Creek near Sheridan Wyoming
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 41 KB)  

  • Big Hole River near Wisdom
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 41 KB)  

  • Bighorn River near St. Xavier
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 41 KB)  

  • Bitterroot River near Darby
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)  

  • Blackfoot River near Bonner
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Boysen Reservoir Inflow, Wyoming
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Buffalo Bill Reservoir Inflow, Wyoming
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Clark Canyon Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • East Fork Rock Creek Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Ennis Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Flathead Lake Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Gallatin River near Gateway
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Gallatin River near Logan
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Gibson Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Hebgen Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Hyalite Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Lake Sherburne Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Lima Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Little Goose Creek near Big Horn Wyoming
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Lower Willow Creek Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 41 KB)

  • Marias River near Shelby
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 41 KB)

  • Middle Fork Flathead River near West Glacier
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Mission Creek near St. Ignatius
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Missouri River at Toston
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Musselshell River at Harlowton
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Musselshell River near Roundup
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Nevada Creek near Helmville
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

  • Powder River at Moorehead
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

  • South Crow Creek near Ronan
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

  • South Fork Jocko River near Arlee
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

  • Swift Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

  • Tongue River near Dayton Wyoming
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Tongue River Reservoir Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Willow Creek Reservoir (Harrison) Inflow
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Yellowstone at Lake Outlet
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 43 KB)

  • Yellowstone River at Corwin Springs
        Percent & Skill  |  Exceedance Forecasts  |  Scatter Graphs  | Excel Data (XLS; 42 KB)

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