A number of new monthly products and web pages have been developed for release in the 2021 water year. New monthly summaries are now available for the statewide and river basin scale, and new webpages have been developed for improved access to streamflow forecasts, reservoir contents and other water supply tools.

These tools can be found by clicking the links below, or using the navigation bar above. 

Monthly Overview

Monthly River Basin Summaries

Streamflow Forecasts (Official)

Streamflow Forecasts (Daily Guidance) 

Legacy Water Supply Outlook Reports

Looking for a daily overview of statewide snowpack, precipitation, current and future weather, drought status and streamflows? Look no further. This new web page displays interactive state-wide content which allows the water user to directly interact with the maps and products created by the NRCS and other cooperating agencies. 

***While useful for assessing periods between the official monthly reports, these tools should only be used to supplement the monthly products. Since they use a smaller selection of sites to create daily products, they offer a reasonable, but not comprehensive, overview of overall snowpack and precipitation.  

The scale of the traditional state-wide products has been reduced to allow water users in individual river basins to see interactive maps, plots and other information specific to their river basin, or sub-basin, of interest. 

Click on the link to visit be directed to an example river basin, or use the Navigation Bar at the top view your river basin of interest. 

***While useful for assessing periods between the official monthly reports, these tools should only be used to supplement the monthly products. Since they use a smaller selection of sites to create daily products, they offer a reasonable, but not comprehensive, overview of overall snowpack and precipitation.