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Showing posts from December, 2014

2014-15 Winter Divide?

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I do this thing that measures the length of a winter season. The criteria is simple and can be found at the link. Each winter is unique. Long, short, divided. 2014-15 is becoming special in it's own way. Earliest divide since 1994-95? If the MaxT is above 32F 12/26 and the snow depth at obs on 12/27 is < 1 inch, the 2014-15 winter will have come to a halt. 1994-95 and current 2014-15 WSD charts attached below.





I have WSD data back through 1990 for Oshkosh/OSNW3. For the summaries please click here. If there are any questions, comments, or suggestions on the material presented please let me know. Thanks for reading!

2014-15 First Day of Winter

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The winter of 2014-15 has begun. Winter is officially here, in my backyard. Let me review the the conditions that constitute a winter season. The definition of a Winter Season Duration (WSD) is as follows, and in the case of OSNW3, six(6), is used for "several" consecutive days.

First Day of Winter represents a daily max temp equal or below 32°F and a snow depth of 1" or greater for several consecutive days.

Last Day of Winter represents a daily max temp equal or above 32°F and a snow depth less than 1" for several consecutive days.

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The winter of 2014-15 began on Nov 21, 2014. Which is the earliest by 2+ weeks since 2006. Below is a graphical representation through Dec 9, 2014.



Just an FYI. The winter of 2013-14 lasted 109 days, so did the winter of 2012-13.





I have WSD data back through 1990 for Oshkosh/OSNW3. For the summaries please click here. If there are any questions, comments, or suggestions on the material presented please let me know. Thanks for readi…