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Late autumn, early winter model mayhem


Typhoon Tip

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  On 12/11/2017 at 8:15 PM, WinterWolf said:

He couldn't be less serious...he's being sarcastic.  Berg is on the Decembertoremember train...locking in that cold and stormy pattern!

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Even more, I’ve been banging the historic winter drum since the October heatwave. 

Something about the atmopshere balancing itself out...usually draws my attention. Plus the farmers almanac said cold and snow, lock it. 

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  On 12/11/2017 at 8:07 PM, HIPPYVALLEY said:

 Maybe somebody could give a rundown as to how many grinch storms there have actuallybeen in the past 20 years.   It's probably less than we think because they stand out so easily .

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Only one site, and my criteria (snow-melting RA event during the period Dec. 21-28) may be overly broad for some folks, but of 19 Decembers we've had Grinch-ey wx during those 8 days in 15 of them.  Three came with bare ground, and so don't count (Grinch found no presents to steal.)  Also, my avg non-smoothed temp climbs more than 5F from 12/20 to 12/24, and 12/25 has had less total snowfall (1.7") than any other day of the month.  SSS and all that, so I'm sure there will be a snow hit one of these years.

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  On 12/11/2017 at 8:58 PM, tamarack said:

Only one site, and my criteria (snow-melting RA event during the period Dec. 21-28) may be overly broad for some folks, but of 19 Decembers we've had Grinch-ey wx during those 8 days in 15 of them.  Three came with bare ground, and so don't count (Grinch found no presents to steal.)  Also, my avg non-smoothed temp climbs more than 5F from 12/20 to 12/24, and 12/25 has had less total snowfall (1.7") than any other day of the month.  SSS and all that, so I'm sure there will be a snow hit one of these years.

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Awesome, thanks!   So the grinch is real! 

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  On 12/11/2017 at 9:22 PM, HIPPYVALLEY said:

Awesome, thanks!   So the grinch is real! 

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For grins, I just looked at the 8 days immediately before my "Grinch period."   Dec. 13-20 had 8 non-Grinch years (twice as many as 21-28), 6 Grinches (half as many), and 5 no-snow Grinch-eys.  Temps averaged 0.9F colder for the earlier period, precip was twice as much, and snowfall almost 3 times as much as 21-28 (12.3" vs 4.2".)

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  On 12/11/2017 at 9:39 PM, tamarack said:

For grins, I just looked at the 8 days immediately before my "Grinch period."   Dec. 13-20 had 8 non-Grinch years (twice as many as 21-28), 6 Grinches (half as many), and 5 no-snow Grinch-eys.  Temps averaged 0.9F colder for the earlier period, precip was twice as much, and snowfall almost 3 times as much as 21-28 (12.3" vs 4.2".)

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since 1974 top ten warmest periods 12-23 to 12-25 

1 2015-12-25  54.3  
2 2014-12-25  47.0  
3 2003-12-25  45.7  
4 1979-12-25  43.8  
5 1994-12-25  41.5  
6 2006-12-25  40.5  
7 1990-12-25   40.2  
8 2007-12-25 39.2  
9 1996-12-25 37.5  
10  1977-12-25 36.8  

 

Top Ten coldest

1 1989-12-25  10.2  
2 1975-12-25  11.8  
3 2000-12-25  17.5  
4 1998-12-25 19.7  
- 1980-12-25 19.7  
6 1999-12-25 20.3  
7 1983-12-25 20.8  
8 2009-12-25 23.8  
9 1993-12-25 24.0  
10  1992-12-25 24.5

 

Least amount of snow OTG

1 2015-12-25  0 0
- 2014-12-25 0 0
- 2011-12-25 0 0
- 2006-12-25 0 0
- 2004-12-25 0 0
- 2001-12-25 0 0
- 1996-12-25 0 0
- 1994-12-25 0 0
- 1990-12-25 0 0
- 1986-12-25 0 0
- 1984-12-25 0 0
- 1979-12-25 0 0
- 1977-12-25 0 0

 

Most snow OTG'

1 1995-12-25  12  
2 2008-12-25 11  
3 2009-12-25 10  
4 1981-12-25 9  
5 2007-12-25 7 0
- 1975-12-25 7  
7 1997-12-25 6  
- 1992-12-25 6  
2005-12-25 4  
- 1989-12-25 4  
- 1982-12-25 4

 

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