What to expect
The ensemble streamflow prediction that is part of NWSRFS provides probabilistic forecasts with lead times of a few days to several weeks or longer.
These forecasts not only account for precipitation already on the ground but also account for estimates of future precipitation.
This prediction system greatly improves the capability to take timely and effective actions that will significantly mitigate the impact of major floods and droughts.

The system also provides better overall information for use in managing competing water demands for multiple water users,
e.g., agriculture, ecosystems, hydropower and navigation.
The system uses operational precipitation and temperature forecast products, including long-range probabilistic products as well as climate analysis.