National Weather Service United States Department of Commerce

Winter Weather Advisory Criteria for Winter 2012-13

Effective for the 2012-13 winter season, the National Weather Service in Wilmington OH has decided to change the official snow criteria for Winter Weather Advisories for the northern half of our forecast area from 4" to 3". This area is depicted in the attached map in blue, and includes both Dayton and Columbus. After receiving feedback from our emergency management and media partners, we learned that advisory-level conditions were occurring with about 3" of snow in this area.

A complete summary of our winter weather watch/warning/advisory criteria can be found at our criteria web page.