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February 2025 Disco/Obs Thread


Torch Tiger
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22 minutes ago, Typhoon Tip said:

This winter may have been a good example of how ENSO is too heavily relied upon in seasonal outlooks and always has been.

About 12 or so years ago ... even NCEP began cautioning in their seasonal outlooks that the polarward indices can at times overpower and lead to break down of the correlations they use - name ENSO as primary - for more N latitudes such as the NP-GL-N OV and NE regions.  

This season's layout smacks like it was a poor La Nina performer over N Amer.

Well, La nina was also weak....there has always been more variability amongst weaker events. 2008 and 2000 were both weaker la nina events...and cold. Extra tropical influences def. have more proxy in those instances.

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1 hour ago, Heisy said:

Here’s what I’m talking about off the 6z euro Ai, and it was hinted at on other models last night,

There’s the wave day 7, that wave has a SE flow ahead of it and not much chance for frozen outside elevations, but right on its heels is another N/S shortwave which OP euro and Ai develop a second low.

If we can get some spacing between the two it could work for you guys.

8b59bf89782196f0de0bce4c7ed0b0ef.jpg
f22798ea90235e475cdfb1bdb828e5ae.jpg


Both the 00z and 6z euro Ai redevelop that second wave and dump snow in SNE. The cmc was trying to turn the corner too. Not betting the house on it, but with the brief PNA spike maybe it’s possible.


.

After the utter dumpster fire debacle with the models for yesterday, (and more times than I can count this winter for that matter), why would anyone take what the models are showing at day 9 seriously? 

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2 hours ago, CoastalWx said:

It’s akin to the weenies saying back is broken in August when we get our first cool shot. It’s definitely going to get colder after 3/1 but maybe it last 7-10 days? You can see the PAC jet seems like it wants to get more active. That cold won’t last long by that date if it happens. 

Back broken last August dews and HHH gone like yesterday 

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2 hours ago, 40/70 Benchmark said:

Its a bit colder vs 1991-2020 climo across SNE, but I'm suprised....thought it was colder.

Composite Plot

One paradox of this winter's temps may be that the overabundance of wind made it feel colder, but it blew away the rad pits thus keeping the overnights less cold.

Barring a torch to end the month, DJF will be 1-1.5F below my 27-year average (and 6-7F colder than the previous 2 winters).  My average doesn't include all of 1991-2020.  It misses the Pinatubo chill but also excludes the mild winters of 96-97 & 97-98.

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