Western Water Assessment's Jeff Lukas and Liz Payton, along with Steph McAfee (University of Nevada, Reno), provide a closer look at the observations of weather, climate, and hydrology that are fundamental to Colorado River water supply, water demand, and system condition forecasts and projections. This second installment in the "Colorado River Basin Climate and Hydrology: State of the Science" report webinar series will focus on Chapters 4 & 5, which cover weather observation networks, procedures for developing gridded climate datasets, snowpack observation techniques, streamflow naturalization methods, and models for estimating evapotranspiration and soil moisture. Jeff, Liz, and Steph will discuss these topics and offer key challenges and opportunities for improving the data, followed by Q&A. The "Colorado River Basin Climate and Hydrology: State of the Science" report was conceived and commissioned by a group of federal, state, and local water agencies working to advance scientif...