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December warm NOT White


PB GFI

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at least there is cold somewher

That is what I was thinking...despite the torch here, that's actually a good balance of warm to cold with widespread below normal temperatures in the American West, Alaska, Northern Canada/Canadian Archipelago, as well as Greenland and the North Atlantic.

Ecologically, it's more important for the West to be cold to stop the beetle destruction of forests, as well as to build snowpack in the Rockies to provide water for animals, plants, and humans in the warm season. Also, a cold winter in the Arctic helps with pressure ridging and thicker ice.

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GFS has 10C 850s up to far northern Quebec/Labrador with that cutter. Brutal. As I said before, the depicted ridge could bring temperatures close to 80F in parts of the mid-Atlantic.

Wow, guess we'll see how it turns out. I would imagine it backs off a little as it gets closer.

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NYC now at +10.5 for December. All that is needed is +6.5 to pass 2001 for the new warmest 

December.

 

Greatest NYC monthly temperature departures since 1951:

 

Jan 90....+9.6

Jan 06....+8.8

Mar 12....+8.5

Jan 98....+8.5

Jan 02....+7.9

 

1900-1950 the greatest departures occurred in Jan 32.. Jan 50..Mar 45

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-11.4 with 13.4 of snow in NYC

Coldest month I have ever experienced

 

It's interesting that the last -10 or lower departure month was followed even more quickly by an extreme

high departure. I will never forget how surprised I was that winter. 

 

Dec 89....-10.3

Jan 90.....+9.6

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It's interesting that the last -10 or lower departure month was followed even more quickly by an extreme high departure. I will never forget how surprised I was that winter.

Dec 89....-10.3

Jan 90.....+9.6

What's amazing to is the departures in SNE....ORH avg temp is 30 for the day right now and they are not even getting close to that...so far they are +9.0 for the month

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What's amazing to is the departures in SNE....ORH avg temp is 30 for the day right now and they are not even getting close to that...so far they are +9.0 for the month

 

It's also interesting that the next burst of extreme warmth forecast for later in the month looks much more

like a La Nina than El Nino. Most of the top analog years around the holidays are La Nina years.

Classic La Nina ridge north of Hawaii...Western NOAM trough..Eastern ridge pattern.

 

 

19991207...La Nina

20011214...La Nina

20071223...La Nina

19541230...La Nina

19941212...El Nino

20070105...El Nino

20060110...La Nina

19981207...La Nina

20011209...La Nina

19890109...La Nina

 

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GFSx is now a mere +12degs. for the next 8 days (including today)   w/o going through the arithmetic again, we are going to need the last 10 days of the month to be -2.0, to keep this Dec. from setting a new all time record.    No such forecast is at hand for the remainder  of the month----so I say we will blow the record away by a whole degree, like Sept.

 

http://www.nws.noaa.gov/cgi-bin/mos/getmex.pl?sta=KACY&sta=KEWR&sta=KNYC&sta=KJFK&sta=KLGA

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It's also interesting that the next burst of extreme warmth forecast for later in the month looks much more

like a La Nina than El Nino. Most of the top analog years around the holidays are La Nina years.

Classic La Nina ridge north of Hawaii...Western NOAM trough..Eastern ridge pattern.

19991207...La Nina

20011214...La Nina

20071223...La Nina

19541230...La Nina

19941212...El Nino

20070105...El Nino

20060110...La Nina

19981207...La Nina

20011209...La Nina

19890109...La Nina

814analog.off.gif

That's really been a common theme the last 5-10 years or so of patterns, especially in December behaving like the opposite ENSO phase. In general it's been El Niños behaving like La Niñas but we definitely saw 08-09 10-11 and 05-06 behave like El Niño for stretches. I think the December El Niños behaving like La Niña is again a product of the AMO and the generally crazy warm western Atlantic at times the last decade causing the ridge in the east or southeast US.

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That's really been a common theme the last 5-10 years or so of patterns, especially in December behaving like the opposite ENSO phase. In general it's been El Niños behaving like La Niñas but we definitely saw 08-09 10-11 and 05-06 behave like El Niño for stretches. I think the December El Niños behaving like La Niña is again a product of the AMO and the generally crazy warm western Atlantic at times the last decade causing the ridge in the east or southeast US.

 

All that warm water north of Hawaii is also more common for a La Nina pattern than an El Nino.

You can see the much warmer SST's north of Hawaii compared to the last El Nino of a similar

magnitude in 1997.

 

 

 

 

December La Nina composite warm SST's north of Hawaii

 

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The glimmer of hope I mentioned for the weeks 4-5 on the CFS weeklies  yesterday was obliterated by today.   This pattern seems to be hardening its stance, or these analogs are just unable to pickup on stratospheric changes that might help us eventually.

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