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November Mid/Long Range Discussion


WxUSAF
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8 hours ago, ORH_wxman said:

Pacific looked more hostile the first few days of December on yesterday's and last night's runs than we saw on Tuesday/Wednesday....but as you said, it doesn't last very long. The NAO blocking is still showing up, which is probably the most important variable for a positive outlook later in the winter.

Weeklies have been quite weenie-ish beyond mid-month too and you can see one of the reasons why on the MJO/RMM plots....we emerge into weak/COD phase 8 around mid-month. Note that the phase 4/5 stuff has mostly disappeared....fewer and fewer members show significant waves into that region now. 

image.png.ea1594368eedd96fe3a88ff91d674856.png

Some good MJO news. Hope this movements towards less Phase 3, 4, 5, continues. Can we just stay in 8, 1, 2 all winter please?

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1 hour ago, Stormchaserchuck1 said:

I've been saying watch near Dec 5th for our first possible snow event. This isn't a strong signal, but it's not that far off a really good setup..

https://ibb.co/vdN2TYW

The reason is a stronger piece of energy is dropping into the SW around Dec 1-3.. when that moves east if we have this 3-wave setup with nothing else, like a Aleutian High, then we might have a snow event to track. El Nino should keep us away from -PNA as this trends closer, but let's see..

gfs_mslp_pcpn_frzn_us_46.png

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2 hours ago, brooklynwx99 said:

so people like myself, @griteater, @40/70 Benchmark, and others who had 2009 as a strong analog would have been called weenies by him, but now it’s his top analog? such bullshit

IMG_3561.thumb.png.a69f45d3a44ad5e6131977775eb0d4e9.png

2010 is a great overall analog, but I don't love if for the polar domain due to the very low solar...NAO won't be as extreme, which isn't saying much.

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12 minutes ago, Eskimo Joe said:

While I understand this is a single run of an operational model, the 18z GFS has a nice banana high on the Dec 5 - 8 event. That is a requirement for early season snow of any consequence, and difficult to get without Atlantic blocking. Good to see. More please.

Pretty good post from you. More please.

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6 minutes ago, CAPE said:

Pretty good post from you. More please.

The oddity is the trajectory of the low track . It's essentially an Albert Clipper. Not so common in early Dec. EJ is correct though. 50-50 low. HP to the west over the GLs- results in a nice feed of cold from the north into the storm. -NAO forces the low to track to our south.

1701820800-3xgzPfg4bLU.png

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2 minutes ago, CAPE said:

The oddity is the trajectory of the low track . It's essentially an Albert Clipper. Not so common in early Dec. EJ is correct though. 50-50 low. HP to the west over the GLs- results in a nice feed of cold from the north into the storm. -NAO forces the low to track to our south.

It's riding the western edge of the trough, hence the trajectory looks awkward. If the axis was focused further west by another 100 miles or so, then it would appear more normal. I'm still very bearish on snowfall chances for this winter for 3 reasons:

1.) Uncooperative Pacific

2.) Uncooperative Atlantic blocking

3.) STJ will be deflected too far south and east because #2. I could see this winter setting up where DCA and IAD see a couple of Boxing Day 2010 events where Delmarva jackpots and we smoke cirrus west of the Bay. I don't think my psyche could handle another one of those.

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2 minutes ago, CAPE said:

The oddity is the trajectory of the low track . It's essentially an Albert Clipper. Not so common in early Dec. EJ is correct though. 50-50 low. HP to the west over the GLs- results in a nice feed of cold from the north into the storm. -NAO forces the low to track to our south.

1701820800-3xgzPfg4bLU.png

Hopefully, that goa low will be further west. 

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Just now, brooklynwx99 said:

that is the exception rather than the rule. a strong -NAO almost always overpowers unless the Pacific truly sucks

I'd argue the Pacific has been more consistently hostile during that 7-year stretch than is was before (or so it seems). Like I said that pac might just be different now, who knows?

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3 minutes ago, Eskimo Joe said:

It's riding the western edge of the trough, hence the trajectory looks awkward. If the axis was focused further west by another 100 miles or so, then it would appear more normal. I'm still very bearish on snowfall chances for this winter for 3 reasons:

1.) Uncooperative Pacific

2.) Uncooperative Atlantic blocking

3.) STJ will be deflected too far south and east because #2. I could see this winter setting up where DCA and IAD see a couple of Boxing Day 2010 events where Delmarva jackpots and we smoke cirrus west of the Bay. I don't think my psyche could handle another one of those.

Ok now you are kind of ruining it.

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14 minutes ago, brooklynwx99 said:

i know everyone always whines about the Pacific, but the -NAO and resultant confluence is king for you guys

It used to be the shit. Lately I am not sure, esp for the coastal plain. Seems over here we do better with -EPO/cross polar flow. Doesn't always work out so well for the Fall line points west though.

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