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January Medium/Long Range: A snowy January ahead?


mappy
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2 hours ago, frd said:

 

Not a great look for the lowlands once again, and still not at climo here despite the frigid airmasses, to a degree wasted potential like usual. 

Its been a lower Delaware type of winter and a SE US winter so far from a climo point of view, maybe March redeems for areas that have missed the biggest snowfalls. 

At least the snow has stuck around, which is a huge win for winter weather lovers !   

Looking at trends on the distant AO it appears we are getting some signals that the - AO and blocking return later in the winter. 

 

I think the lowlands have a good chance to score more snow this year...if not before things warm in Feb in March.  But while it's definitely ended up a little colder/snowier than I anticipated it's still following some of the colder cold neutral or weak enso analogs like 2009 that were identified pre-season.  They were "cold" but not particularly snowy.  There has been a bit of that...and if 2009 actually is the best analog as I've proposed we actually have got a little lucker this year than we did that year where we had 2 months of cold but barely got any snow until March.   Because we've been so freaking warm so often lately we forget how common it is to get cold but not snowy periods...or at least how common that used to be.  Because our biggest issue has been its just too warm lately...some have started to think "just give me the cold and I'll take my chances" but that does not always work out.  

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1 minute ago, psuhoffman said:

I think the lowlands have a good chance to score more snow this year...if not before things warm in Feb in March.  But while it's definitely ended up a little colder/snowier than I anticipated it's still following some of the colder cold neutral or weak enso analogs like 2009 that were identified pre-season.  They were "cold" but not particularly snowy.  There has been a bit of that...and if 2009 actually is the best analog as I've proposed we actually have got a little lucker this year than we did that year where we had 2 months of cold but barely got any snow until March.   Because we've been so freaking warm so often lately we forget how common it is to get cold but not snowy periods...or at least how common that used to be.  Because our biggest issue has been its just too warm lately...some have started to think "just give me the cold and I'll take my chances" but that does not always work out.  

I think we have a chance too before the window shuts after around the first of Feb.  RIGHT NOW, seems to me, we may have to compromise and mix some ice in there too.   I mean, as long as I know ahead of times that all snow is out of the question, I'm cool with ice now that I don't have to drive in it.  :sled:

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18 minutes ago, WEATHER53 said:

AI did well once and flopped once but at least it sticks to its design and doesn’t go from 8” to 1” every 6 hours.  Let’s see how it fares this time 

 

I actually don't think it "flopped" this last time...it nailed the general location of that wave from over a week out!  It always had the max qpf a little NW of 95.  In the end it was too liberal on the SE side of the precip band by about 50 miles but the AI is low resolution and I warned it would smooth out details and wouldn't see something like a sharp gradient.  That's where the high res models should have helped but they failed us lol.  THe AI should be used to give us a general idea of a storm and it did that...it failed at the details its not really meant for.  Just my opinion.  

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5 minutes ago, mitchnick said:

Gfs came close at the end, but that reminds me of 93/94. Just need it south by another 75-100 miles.

I'm cool with some 4" solid ice solution that glaciates my snowpack to help it last maybe an extra week once the warm up hits lol  

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8 minutes ago, brooklynwx99 said:

notice the trend for a stronger Pacific jet as we move forward in time, which has been common this year... this helps push the Aleutian ridging closer to AK, allowing the trough in the Rockies to push east a bit more. would be nice to see this keep going

gfs-ens_uv250_npac_fh276_trend.thumb.gif.b346cd430c92764ae097aa83b62efe6c.gifgfs-ens_z500a_npac_fh276_trend.thumb.gif.0fec9bcd2121b3940123c8754cfe01ba.gif

I was just thinking about this when bluewave kept mentioning the stronger pac jet. 

We saw the same last year when the pac jet verified stronger than forecast, and that actually hurt us in a nino by flooding the continent with mild pacific air almost the whole winter. Only when it relaxed a bit did we get a snowy week in Jan here.

Now this time, the stronger pac jet is helping us because were not in a nino (cold enso/weak nina). In the long range, the models keep trying to weaken the jet and bring the PNA ridge west towards the aleutians. Then it all shifts east as it gets closer in time. 

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1 hour ago, psuhoffman said:

I think the lowlands have a good chance to score more snow this year...if not before things warm in Feb in March.  But while it's definitely ended up a little colder/snowier than I anticipated it's still following some of the colder cold neutral or weak enso analogs like 2009 that were identified pre-season.  They were "cold" but not particularly snowy.  There has been a bit of that...and if 2009 actually is the best analog as I've proposed we actually have got a little lucker this year than we did that year where we had 2 months of cold but barely got any snow until March.   Because we've been so freaking warm so often lately we forget how common it is to get cold but not snowy periods...or at least how common that used to be.  Because our biggest issue has been its just too warm lately...some have started to think "just give me the cold and I'll take my chances" but that does not always work out.  

If 2009 is the analog and next year we get 2010, I think we will deal lol.

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4 minutes ago, psuhoffman said:

it phases with the NS out in the midwest...that wont work no matter what the exact location of the features is. 

Even if that phase it verbatim is close a cad ice storm event, and has another opportunity set up behind it. I do agree that if we want an all snow/frozen outcome that the NS phase wont work but I think a minor event could still happen depending on CAD strength. 

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22 minutes ago, Terpeast said:

I was just thinking about this when bluewave kept mentioning the stronger pac jet. 

We saw the same last year when the pac jet verified stronger than forecast, and that actually hurt us in a nino by flooding the continent with mild pacific air almost the whole winter. Only when it relaxed a bit did we get a snowy week in Jan here.

Now this time, the stronger pac jet is helping us because were not in a nino (cold enso/weak nina). In the long range, the models keep trying to weaken the jet and bring the PNA ridge west towards the aleutians. Then it all shifts east as it gets closer in time. 

I'm glad that is helping the cause this year, but it doesn't bode well for chances of getting a nice clean miller A in future Ninos if that Pac Jet stays permanently jacked up.  I'm hoping it collapses...just wait til the end of this winter first :rolleyes:.

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7 minutes ago, cbmclean said:

I'm glad that is helping the cause this year, but it doesn't bode well for chances of getting a nice clean miller A in future Ninos if that Pac Jet stays permanently jacked up.  I'm hoping it collapses...just wait til the end of this winter first :rolleyes:.

Let see what the impact is when the pdo is positive. 

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1 hour ago, Terpeast said:

I was just thinking about this when bluewave kept mentioning the stronger pac jet. 

We saw the same last year when the pac jet verified stronger than forecast, and that actually hurt us in a nino by flooding the continent with mild pacific air almost the whole winter. Only when it relaxed a bit did we get a snowy week in Jan here.

Now this time, the stronger pac jet is helping us because were not in a nino (cold enso/weak nina). In the long range, the models keep trying to weaken the jet and bring the PNA ridge west towards the aleutians. Then it all shifts east as it gets closer in time. 

is this not bc of the ghost of the super nino last year? iirc 2016-17 also had some poleward overextensions

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it phases with the NS out in the midwest...that wont work no matter what the exact location of the features is. 

Correct, the difference was around the time period the euro left energy behind and timed the northern stream with the little wave that was able to escape. Haven’t seen the Ai but I assume it did something like the CMC


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