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Mid/Late February will be rocking. (This year we mean it!) February long range discussion.


JenkinsJinkies
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14 minutes ago, Stormchaserchuck1 said:

Sometimes when the mathematical variability is so strong, it's worth considering. Ideally, weather forecasting should outperform Energy Futures because you would think we have better methods.. they are speculating. but that's not been the case for a while. I'm really surprised that the global models just had El Nino-climo, when we have had such a strong -PNA for the last 6 years, and the El Nino was not correlating with it April-Oct. With that strong 24th -PNA I just showed in the previous post, it looks like we may come in near neutral in the PNA region for February, which is in line with this record streak that we are in.. But the global models had like a -120dm to -150dm +PNA for the month.. 

Except that’s the polar opposite ridge trough configuration as the plot I posted that you also called a -pna. You can’t just call every bad pattern here -pna. It might not have been good for us but that full latitude ridge in the west I posted is most definitely a +pna. The region you were focusing on is more the epo domain.  There is some overlap and ideally we want a -epo +pna. 

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3 minutes ago, psuhoffman said:

Except that’s the polar opposite ridge trough configuration as the plot I posted that you also called a -pna. You can’t just call every bad pattern here -pna. It might not have been good for us but that full latitude ridge in the west I posted is most definitely a +pna. The region you were focusing on is more the epo domain.  There is some overlap and ideally we want a -epo +pna. 

The main region for PNA is in the N. Pacific Ocean south of the Aleutian islands.. Both, or all 3 images shown so far had a ridge there (-PNA).  I don't call what's happening over alaska or gulf of alaska, pna, although the CPC does include that. 

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7 minutes ago, Stormchaserchuck1 said:

Here's 18z GEFS.. just a crazy ridge south of the Aleutian Islands
https://ibb.co/9Wycxzf

Here's something I posted a few ago, https://ibb.co/ZgvkXCY

With a Strong El Nino at the surface, and negative in the subsurface, and now +250dm -PNA appearing, it hits this +correlation, which I have found is better than surface conditions (in the historical dataset). 

That's a really warm pattern setting up there on the LR GEFS with the EPO going + too.. 

But is it right?  Isn't the EPS colder?

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10 minutes ago, snowmagnet said:

But is it right?  Isn't the EPS colder?

ENSO subsurface is showing a -3c pocket now in the central region at -200m. In my research/experience, that has a pretty high correlation to the N. Pacific pattern at 0-time (backs the -PNA idea). Plus we are in some strong multi-year states with that 500mb feature in Feb/March. 

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Big move on the weeklies, showing above normal temps 2-3 weeks from now. Looks like we’ll have a quick transition to spring after this wintry week coming up. Still shocks me how the long range is almost void of any snow for much of CONUS for the next few weeks. Even in abysmal winters of 2012,2020,2023, at least someone was getting the goods. This is just downright strange, like a winter without a winter (save for a couple weeks in January). Colder conditions look likely for the west, which could lead to some snow there over the next few weeks, but holy moly has this been an abrupt change in models for the long range. 

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1 minute ago, jayyy said:

Models are struggling inside 12 hours with the storm on our doorstep and people are losing their minds over individual long range runs 1-2+ weeks out?

Gimme a break.

If they cut every model off at 5 days and decommission the weeklies, that would save me a hell lot of time and grief. 

Just pull the plug already

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2 hours ago, Stormchaserchuck1 said:

The main region for PNA is in the N. Pacific Ocean south of the Aleutian islands.. Both, or all 3 images shown so far had a ridge there (-PNA).  I don't call what's happening over alaska or gulf of alaska, pna, although the CPC does include that. 

You can’t ignore the western N American part of the PNA equation though. 
IMG_1514.jpeg.ed4e7cf429b980f138ef6e93c0dcfe63.jpeg

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37 minutes ago, Maestrobjwa said:

Lol I mean not for this run, but I just noticed there was more interaction and closer...was wondering what happens if that trend continues.

if the PD storm is going to happen...the GGEM looks way better than the awful GFS

gem_z500_vort_us_27.png

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