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November 2017 Discussions & Observations Thread


Rtd208

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38 minutes ago, North and West said:

How so? That's quite a claim to make (not you per se; just in general this far out)

Every time we have a La Niña the usual suspects bring up 95-96 and 10-11, and say they are “analogs”, without fail, literally every time. Same story every time there is an El Niño, 57-58, 02-03 and 09-10 are always the “analogs”. As predictable as the rising sun....

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2 minutes ago, snowman19 said:

Every time we have a La Niña the usual suspects bring up 95-96 and 10-11, and say they are “analogs”, without fail, literally every time. Same story every time there is an El Niño, 57-58, 02-03 and 09-10 are always the “analogs”. As predictable as the rising sun....

Thanks. Seems logical.

Don't mind my few posts; had to make a new sign-in here.

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14 minutes ago, snowman19 said:

Every time we have a La Niña the usual suspects bring up 95-96 and 10-11, and say they are “analogs”, without fail, literally every time. Same story every time there is an El Niño, 57-58, 02-03 and 09-10 are always the “analogs”. As predictable as the rising sun....

Sure , but it cuts both ways .

Unless you're saying here and now when  the next East based Nino occurs you will  never mention 97/98? 

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4 hours ago, SnowGoose69 said:

The SST configuration in the Atlantic if you ask me is the best this late in the fall in ages.  It's not perfect but way better than the last 3-4 years 

 

I'll have to respectfully disagree with that based upon my research. It's a bit better than past couple of years, but far removed from perfect.

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39 minutes ago, uncle W said:

the ao/nao are forecast to dive to very low levels...the last weeks oni was up a bit to-0.4...it looks like a weak negative winter or borderline la nina with blocking...

The 12z EPS is holding serve around -3 SD on the AO.

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1 minute ago, bluewave said:

The 12z EPS is holding serve around -3 SD on the AO.

-3 is better than +3 we just saw...last year we got snow when the ao went negative for a few days...the nao is also going to dive to near -1.5...2009 and 2010 saw a -5 ao in both Decembers along with a -2.5 nao at times...

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22 minutes ago, uncle W said:

-3 is better than +3 we just saw...last year we got snow when the ao went negative for a few days...the nao is also going to dive to near -1.5...2009 and 2010 saw a -5 ao in both Decembers along with a -2.5 nao at times...

It's also the inverse of last November which went from -3 to almost +3.

2016 11  4 -3.137
2016 11  5 -2.533
2016 11  6 -1.343
2016 11  7 -0.345
2016 11  8  0.163
2016 11  9 -0.016
2016 11 10 -0.579
2016 11 11 -0.358
2016 11 12  0.525
2016 11 13  1.343
2016 11 14  2.270
2016 11 15  2.847
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1 hour ago, Isotherm said:

 

I'll have to respectfully disagree with that based upon my research. It's a bit better than past couple of years, but far removed from perfect.

It may not be the perfect tripole setup but its not an ice bath near Greenland and Iceland like I seem to remember it being the last few years 

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4 hours ago, Snow88 said:

Big front loaded winter on the monthlies

 

4 hours ago, PB GFI said:

They are great In Dec and Jan , a little better than front loaded.

Give me winter from the last week of November thru the first week of February then it can shut off and I will be a happy camper. As stated before I am a big fan of December snowstorms and base a good winter on that happening.

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25 minutes ago, Rtd208 said:

 

Give me winter from the last week of November thru the first week of February then it can shut off and I will be a happy camper. As stated before I am a big fan of December snowstorms and base a good winter on that happening.

Big time set up.

Best you will get at 500 day 8 to 15.

Something major will follow 

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You can visualize here how a shortwave from the GoA and a shortwave from the subtropical jet stream can merge. Cold air in injected from Canada via the +PNA, and blocking slows the flow. This provides time for storms to amplify, and it also locks in air masses (in this case, a cold one). The ridge/trough axis combination is quite conducive for east coast cyclogenesis. 

4EEA6775-F5C2-4EDA-83AB-E0B0EFE095D0.thumb.png.6b474bdfc703564d50b33c325e461dc4.png

The blocking itself starts to materialize around the 8 day mark, so it is clearly moving forward in time, and the signal all the way to 15 days out is incredibly robust. I’m pretty certain we are going to see a level of blocking that hasn’t been present for many years. This looks legit, guys. Buckle up. 

9E3DFE66-B89B-4AD1-A045-DC00F55629AC.thumb.png.2448b7f7f80ae4139fea3bb02988e579.png

32F6DB26-FD53-4124-B2F7-3B0FE4F1B4DE.thumb.png.fb911a80df705e9e1fdd7943d650ae2f.png

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Just now, brooklynwx99 said:

You can visualize here how a shortwave from the GoA and a shortwave from the subtropical jet stream can merge. Cold air in injected from Canada via the +PNA, and blocking slows the flow. This provides time for storms to amplify, and it also locks in air masses (in this case, a cold one). The ridge/trough axis combination is quite conducive for east coast cyclogenesis. 

4EEA6775-F5C2-4EDA-83AB-E0B0EFE095D0.thumb.png.6b474bdfc703564d50b33c325e461dc4.png

The blocking itself starts to materialize around the 8 day mark, so it is clearly moving forward in time, and the signal all the way to 15 days out is incredibly robust. I’m pretty certain we are going to see a level of blocking that hasn’t been present for many years. This looks legit, guys. Buckle up. 

9E3DFE66-B89B-4AD1-A045-DC00F55629AC.thumb.png.2448b7f7f80ae4139fea3bb02988e579.png

32F6DB26-FD53-4124-B2F7-3B0FE4F1B4DE.thumb.png.fb911a80df705e9e1fdd7943d650ae2f.png

Gefs has a big storm signal in the long range

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With respect to the record cold air mass forecast for 11/11, Saranac Lake is forecast to have a low temperature of -3° on November 11 and -5° on November 12. That location's earliest subzero low occurred on November 6, 1909 when the temperature fell to -1°. An 11/11 subzero reading would be tied for that location's second earliest such temperature. In addition, should the temperature fall to -2° or below, that would be the coldest such reading so early in the season. The earliest reading of -2° or below occurred on November 21, 1951 when the temperature fell to -7°.

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1 hour ago, brooklynwx99 said:

You can visualize here how a shortwave from the GoA and a shortwave from the subtropical jet stream can merge. Cold air in injected from Canada via the +PNA, and blocking slows the flow. This provides time for storms to amplify, and it also locks in air masses (in this case, a cold one). The ridge/trough axis combination is quite conducive for east coast cyclogenesis. 

4EEA6775-F5C2-4EDA-83AB-E0B0EFE095D0.thumb.png.6b474bdfc703564d50b33c325e461dc4.png

The blocking itself starts to materialize around the 8 day mark, so it is clearly moving forward in time, and the signal all the way to 15 days out is incredibly robust. I’m pretty certain we are going to see a level of blocking that hasn’t been present for many years. This looks legit, guys. Buckle up. 

9E3DFE66-B89B-4AD1-A045-DC00F55629AC.thumb.png.2448b7f7f80ae4139fea3bb02988e579.png

32F6DB26-FD53-4124-B2F7-3B0FE4F1B4DE.thumb.png.fb911a80df705e9e1fdd7943d650ae2f.png

You are really posting the 384 hour 18z op GFS’s fantasy storm threats in this thread?

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1 hour ago, IntenseBlizzard2014 said:

If anyone should be excited about any possible significant snowfall. It should be the interior folks. If we can get the backside of the Post Thanksgiving Storm. The coastal areas might be able to get a bit of snowfall. That's if the High Latitude Block forms late next week. 

I agree Big time about north and west. Let’s see what this coming cold shot can do to the coastal waters. But the current low 60s are going to kill all but the absolute perfect setups. Anything marginal and you want to be inland... Big time 

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4 hours ago, snowman19 said:

You are really posting the 384 hour 18z op GFS’s fantasy storm threats in this thread?

It’s called an ensemble. Maybe you should look more carefully. There is also a myriad of evidence that supports blocking in the long range. A -QBO and low solar activity along with a weak -ENSO are all supportive of blocking. Also, blocking in November (which is very likely based on ensemble guidance) dramatically increases blocking chances throughout the winter, especially December. Not sure how you can discount blocking when every ensemble shows a huge signal. You can try though. 

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