Official Streamflow Forecast Tables

Issued shortly after the first of the month. A smaller sub-set of forecasts are typically issued mid-month.

Streamflow Forecast Charts

Charts from past years allow you to compare historic forecasts to observed streamflow for verification.
For help interpreting these charts click here.

Streamflow Forecast Evolution Charts

Monthly charts showing how forecasts evolve over the course of the water year. Past years are available.

• Option 1: Official 1st of Month Forecasts Only Select a forecast LAKE TAHOE BASIN Marlette Lake Inflow TRUCKEE BASIN Donner Lk Inflow Martis Ck Res Inflow Prosser Ck Res Inflow Independence Lk Inflow Sagehen Ck nr Truckee Little Truckee R bl Stampede Dam Little Truckee R bl Boca Dam Truckee R at Farad Truckee R ab Farad Sidewater Galena Ck at Galena Ck State Pk CARSON BASIN EF Carson R nr Gardnerville WF Carson R nr Woodfords Carson R nr Carson City Kings Canyon Ck nr Carson City Ash Canyon Ck nr Carson City Carson R at Ft Churchill WALKER BASIN E Walker R nr Bridgeport W Walker R bl L Walker R nr Coleville W Walker R nr Coleville NORTHERN GREAT BASIN Mcdermitt Ck nr Mcdermitt UPPER HUMBOLDT BASIN Marys R nr Deeth Lamoille Ck nr Lamoille NF Humboldt R at Devils Gate Humboldt R nr Elko SF Humboldt R ab Tenmile Ck nr Elko SF Humboldt R ab Dixie Ck Humboldt R nr Carlin Humboldt R at Palisade LOWER HUMBOLDT BASIN Humboldt R at Comus L Humboldt R nr Paradise Valley Martin Ck nr Paradise Valley Humboldt R nr Imlay SNAKE BASIN Bruneau R at Rowland Jarbidge River Below Jarbidge Salmon Falls Ck nr San Jacinto OWYHEE BASIN Owyhee R nr Gold Ck EASTERN NEVADA Kingston Ck nr Austin Steptoe Ck nr Ely Cleve Ck nr Ely Lehman Ck nr Baker COLORADO BASIN Virgin R nr Hurricane Virgin R at Littlefield Lake Powell Inflow
• Option 2: Official 1st of Month plus Weekly Guidance Forecasts Select a forecast LAKE TAHOE BASIN Marlette Lake Inflow TRUCKEE BASIN Donner Lk Inflow Martis Ck Res Inflow Prosser Ck Res Inflow Independence Lk Inflow Sagehen Ck nr Truckee Little Truckee R bl Stampede Dam Little Truckee R bl Boca Dam Truckee R at Farad Truckee R ab Farad Sidewater Galena Ck at Galena Ck State Pk CARSON BASIN EF Carson R nr Gardnerville WF Carson R nr Woodfords Carson R nr Carson City Kings Canyon Ck nr Carson City Ash Canyon Ck nr Carson City Carson R at Ft Churchill WALKER BASIN E Walker R nr Bridgeport W Walker R bl L Walker R nr Coleville W Walker R nr Coleville NORTHERN GREAT BASIN Mcdermitt Ck nr Mcdermitt UPPER HUMBOLDT BASIN Marys R nr Deeth Lamoille Ck nr Lamoille NF Humboldt R at Devils Gate Humboldt R nr Elko SF Humboldt R ab Tenmile Ck nr Elko SF Humboldt R ab Dixie Ck Humboldt R nr Carlin Humboldt R at Palisade LOWER HUMBOLDT BASIN Humboldt R at Comus L Humboldt R nr Paradise Valley Martin Ck nr Paradise Valley Humboldt R nr Imlay SNAKE BASIN Bruneau R at Rowland Jarbidge River Below Jarbidge Salmon Falls Ck nr San Jacinto OWYHEE BASIN Owyhee R nr Gold Ck EASTERN NEVADA Kingston Ck nr Austin Steptoe Ck nr Ely Cleve Ck nr Ely Lehman Ck nr Baker COLORADO BASIN Virgin R nr Hurricane Virgin R at Littlefield Lake Powell Inflow

Guidance forecasts are an automated product issued on the 1st, 9th, 16th and 23th of the month allowing users to track forecast evolution between official first of month publication dates. Guidance forecasts are only available for select points. Guidance forecasts for other forecast points can be added upon request.

Streamflow Forecast Map Links

50% exceedance forecast for most recent forecast publication