As temperatures rise, it is important to stay hydrated, remain cool, and prevent heat related illnesses. Visit these pages from
for more tips and resources on heat safety.
The Groundwater Sustainability: Annual Report – Water Year 2020 is now available!
Explore the interactive Napa Valley Groundwater and Surface Water StoryMap to discover the importance of their connections and learn about Napa County monitoring efforts!
The California State Water Resources Control Board has announced that the occurrence of HABs appears to be increasing. A harmful algae bloom (HAB) is actually made of cyanobacteria, sometimes called blue-green algae.
Use the US Drought Monitoring Map to explore weekly drought updates across the country from the National Drought Mitigation Center. The map uses 5 drought classifications and new data is released on Thursdays.
Using Napa One Rain, you can checkout current and historical rainfall, river and stream level monitoring data from a network of automated gauge sites throughout Napa County.
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