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January 2026 Medium/Long Range Discussion


snowfan
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Just now, Blizzard of 93 said:

Weeklies have generally proved to be about worthless, especially beyond week 3. Heck, we keep seeing changes for week 2. 

No real argument from me on their accuracy, but that doesn’t change the fact that they keep trending warmer instead of colder as they did earlier in the fall and early winter. 

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1 minute ago, Blizzard of 93 said:

Speaking of week 3 on the latest Euro Weeklies…

Today’s run for week 3 shows a decent general look, below normal temperatures & a good amount of precip.

IMG_1352.png

IMG_1353.png

IMG_1354.png

That is the coolest of the forecast weeks off the Euro site, but still apparently in the normal category for temps and precip.

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5 minutes ago, mitchnick said:

No real argument from me on their accuracy, but that doesn’t change the fact that they keep trending warmer instead of colder as they did earlier in the fall and early winter. 

This season has especially proven to not be too concerned beyond week 2 or 3, and even then, changes have been happening in day 7 to 10.

Just yesterday the punters were out until after mid January, but now we might be getting back into business in 10 days or so.

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4 minutes ago, Blizzard of 93 said:

Speaking of week 3 on the latest Euro Weeklies…

Today’s run for week 3 shows a decent general look, below normal temperatures & a good amount of precip.

IMG_1352.png

IMG_1353.png

IMG_1354.png

I still don't trust WB maps. Here's the temp forecast off the Euro site. Cold is way overdone on WB.

webp-worker-commands-658df795d8-4cfmp-6fe5cac1a363ec1525f54343b6cc9fd8-p_va7gs4.webp

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11 minutes ago, Blizzard of 93 said:

2 out of 3 ain’t bad…

Also, @CAPE posted a good look on the GEFS a little earlier for around the 12th.

Beyond mid month the GEFS depicts the EPO ridge taking a positive tilt orientation causing the downstream trough to dig a bit more out west. Not an awful look verbatim as the NA is still favorable. Bottom line is I just cant care much about what any model depicts 15+ days from now.

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45 minutes ago, Ji said:

i hope the GFS chatgpt is better than the GFS

Image

I'm philosophically opposed to parsing operational at D10+ but I am curious; I would describe this as a +PNA but also a +EPO: there's still a huge area of low heights in AK.  Would that be accurate? 

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I'm philosophically opposed to parsing operational at D10+ but I am curious; I would describe this as a +PNA but also a +EPO: there's still a huge area of low heights in AK.  Would that be accurate? 

Yea the epo isn’t scheduled to go negative to mid month which is after that screen shot c38fed62b9a796c384f273b70d09d5d9.jpg
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1 hour ago, JenkinsJinkies said:

How long until the cliff jumpers lose their minds over a warmup that'll be over in less than a week?

I think until we get a decent snow event that comes to fruition there will be cliff jumpers any time there’s even the most slight projected warmup 

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EPS-AI remains by far the best looking in the D10-15 range for pattern. EPS is good, but not as good. GEFS and GEPS have turned the good pattern into a cold front passage and then dump the trough right back out west and pump the SE ridge.  They all have the EPO ridge develop but the precise ridge axis and the strength of any NAO ridging is really important to our sensible outcome

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53 minutes ago, WxUSAF said:

EPS-AI remains by far the best looking in the D10-15 range for pattern. EPS is good, but not as good. GEFS and GEPS have turned the good pattern into a cold front passage and then dump the trough right back out west and pump the SE ridge.  They all have the EPO ridge develop but the precise ridge axis and the strength of any NAO ridging is really important to our sensible outcome

The GEPS is actually colder than the GEFS-almost all of the country has below avg temps after the 12th verbatim, but coldest out west and more like slightly below in the east. It is advertising a stronger -NAO, which seems to be the primary difference between it and the GEFS and why its colder, but also ends up with a more amped EPO ridge so probably a bit more cross Polar flow.

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15 minutes ago, CAPE said:

The GEPS is actually colder than the GEFS-almost all of the country has below avg temps after the 12th verbatim, but coldest out west and more like slightly below in the east. It is advertising a stronger -NAO, which seems to be the primary difference between it and the GEFS and why its colder, but also ends up with a more amped EPO ridge so probably a bit more cross Polar flow.

GEPS always looks dubiously cold at the surface. I think it’s a model bias.

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