We had some nice rain here in the Central Valley over the weekend. The mountains got some serious snow. This is the CoCoRaHS map for Yolo County for this morning (7am 2/3 to 7am 2/4). I wanted to point out the awesome precipitation gradient here in Davis. The west side of town got >1″ of rain while those of us on the east side got <0.4″. That’s a distance of just a few miles of flat terrain. This is why mesoscale networks (like CoCoRaHS) are so useful and critical to our understanding of clouds and precipitation.