Puget Sound Convergence Zone of the beginnings of the University District and the University of Washington community. Just north of Roosevelt High School, an inch of snow coated the ground, and due west of the school in the Green Lake neighborhood of Seattle, an inch of snow had also fallen. In line with the known "abrupt edge" of the Puget Sound Convergence Zone, areas to the south of this Green Lake-to-Roosevelt High line (marked by NE 68th Street), including the U-District, witnessed only a dusting of snow. Puget Sound Convergence Zone The Puget Sound Convergence Zone (PSCZ) is a meteorological phenomenon that occurs over
Puget Sound AVA Puget Sound AVA The Puget Sound AVA is an American Viticultural Area in western Washington state. It is the only AVA in the state of Washington that is located west of the Cascade Mountains. The AVA encompasses the entire Puget Sound area from the Canada–US border to just south of Olympia. Rainfall in the Puget Sound AVA ranges from to annually, which is similar to many European grape growing areas and the Willamette Valley AVA in Oregon. Most of that rainfall occurs in the winter time. Summers are mild, sunny and dry. Irrigation is a necessity in some of the