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Winter 2025-26 Medium/Long Range Discussion


michsnowfreak
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From LOT AFD:

Also have to point out a growing signal for a southwest-flow
synoptic scale cyclone somewhere east of the Rocky Mountains in
the February 11-14 timeframe, with both the GEFS/EPS already
favoring our area being on the warm side. Should a cyclone
actually develop and we end up on the warm side, could easily
envision forecast focus trending toward hydrology concerns
considering the frost depth of just deeper than 13 inches at our
office isn`t going to vanish anytime soon.
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1 hour ago, Powerball said:

Definitely highly skeptical of the current projections beyond the 7 day period with a supposed PV stretch (some are calling it a SSW event, but that's such an overused term and not really accurate) happening...

One thing I've come to learn, after considering it a dirty word following '14 and '18, is that not all SSWEs are created equal (as in, they don't always put the cold into our neck of the woods, which I'd be just fine with given the brutal stretch we're only just finally coming out of).

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1 hour ago, CheeselandSkies said:

One thing I've come to learn, after considering it a dirty word following '14 and '18, is that not all SSWEs are created equal (as in, they don't always put the cold into our neck of the woods, which I'd be just fine with given the brutal stretch we're only just finally coming out of).

A lot of these PV Stretch / SSW events have been happening well into Met Spring as of late though, so the cold anomalies do end up eventually happening, but relative to average and thus haven't been all that cold.

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There definitely looks to be a warm period next week as the western ridge finally slides east. After that, there's reasons to think the pattern could be workable for parts of the region next weekend and beyond. Key feature would be the continued west based -NAO and to a lesser extent the AO.

Based on stratospheric discussion the past few days, there could be some flux in the polar domains which may affect predictability farther out. The EPO is currently modeled to trend strongly positive for a time, but then become less strongly positive. A positive EPO certainly points towards a generally warmer pattern. But the magnitude matters, and in February, a -NAO could do more work given the thick snow and ice cover over Canada vs earlier in the season.

The way I see it, the risk is absolutely there for warmer systems, but the -PNA at least gives a chance for decent storms coming out of the southwest. Since it appears the NAO should remain generally negative, you can still get snow/ice threats even in an unfavorable EPO setting (assuming that holds as modeled). Seems like a pattern in which being farther west and north would tend to be more helpful with a fairly potent southeast ridge favored.

I'd prefer to roll the dice with this than more endless cold northwest flow. Even if winter threats don't work out, I'm personally over the persistent cold weather we've had since mid January.



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1 hour ago, RCNYILWX said:

There definitely looks to be a warm period next week as the western ridge finally slides east. After that, there's reasons to think the pattern could be workable for parts of the region next weekend and beyond. Key feature would be the continued west based -NAO and to a lesser extent the AO.

Based on stratospheric discussion the past few days, there could be some flux in the polar domains which may affect predictability farther out. The EPO is currently modeled to trend strongly positive for a time, but then become less strongly positive. A positive EPO certainly points towards a generally warmer pattern. But the magnitude matters, and in February, a -NAO could do more work given the thick snow and ice cover over Canada vs earlier in the season.

The way I see it, the risk is absolutely there for warmer systems, but the -PNA at least gives a chance for decent storms coming out of the southwest. Since it appears the NAO should remain generally negative, you can still get snow/ice threats even in an unfavorable EPO setting (assuming that holds as modeled). Seems like a pattern in which being farther west and north would tend to be more helpful with a fairly potent southeast ridge favored.

I'd prefer to roll the dice with this than more endless cold northwest flow. Even if winter threats don't work out, I'm personally over the persistent cold weather we've had since mid January.


 

I'm not over the cold (never will be), but agree I'd risk warmer weather if it meant some actual moisture, some of which actually falls as snow. We need the moisture regardless, but rain right now is not going to be soaked into the ground, unfortunately. 

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