29 December 2010

The frequency of heavy snowfall

The annual average number of snowstorms with a 6 inch (15.2 cm) or greater accumulation, from the years 1901 - 2001. A value of 0.1 means an average of one 6+ inch snowstorm every ten years. Image credit: Changnon, S.A., D. Changnon, and T.R. Karl, 2006, Temporal and Spatial Characteristics of Snowstorms in the Contiguous United States, J. Applied Meteorology and Climatology, 45, 8, pp. 1141-1155, DOI: 10.1175/JAM2395.1.
It's interesting to see how many of the big snowfalls are mediated by lake effect and of course by altitude.

Via Wunderblog and Paul Douglas On Weather.


  1. Your link is broken.

  2. bigjohn, I can't fix the primary, but I've added the relevant vias.

    You might try here -


    but I don't know if it will be free.

  3. Thanks. I found it. The article is at: http://journals.ametsoc.org/doi/full/10.1175/JAM2395.1 and it is free.


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