Jump to content
  • Member Statistics

    17,606
    Total Members
    7,904
    Most Online
    ArlyDude
    Newest Member
    ArlyDude
    Joined

December 2017 Mid-Long Range Disco


WxUSAF

Recommended Posts

  • Replies 1.5k
  • Created
  • Last Reply
4 hours ago, donsutherland1 said:

With Pacific and Atlantic blocking showing up on some of the GEFS members in the Day 12-15 period and also on the EPS, the relaxation of the pattern could prove temporary. 

 

2 hours ago, Ji said:

people should relax after seeing the d11-15

 

eps_z500a_nh_360.png

Yep and yep. Long range is always an educated guess at best. But so long as we keep seeing a generally favorable AO or NAO or EPO showing up we have a shot at cold/snow. 

The nina thing was driving me nuts. Yes if we just average them all together January is warm. But January 96,2000,2001, and 2011 would say not so fast. It's not that simple. 

Right now the warm up looks like a reload not a permanent pattern shift. That's just a guess based on how it looks to be evolving on the long range guidance and the fact the AO and epo seem to want to stay helpful. But I could be wrong. Won't be the first or last time. Too many people making declarative statements about the long range based on no solid objective evidence.  Yea it could go warm the rest of winter. And pigs could fly out of my arse. But luckily I see no compelling evidence that either of those things will happen att. 

Link to comment
Share on other sites

45 minutes ago, psuhoffman said:

 

Yep and yep. Long range is always an educated guess at best. But so long as we keep seeing a generally favorable AO or NAO or EPO showing up we have a shot at cold/snow. 

The nina thing was driving me nuts. Yes if we just average them all together January is warm. But January 96,2000,2001, and 2011 would say not so fast. It's not that simple. 

Right now the warm up looks like a reload not a permanent pattern shift. That's just a guess based on how it looks to be evolving on the long range guidance and the fact the AO and epo seem to want to stay helpful. But I could be wrong. Won't be the first or last time. Too many people making declarative statements about the long range based on no solid objective evidence.  Yea it could go warm the rest of winter. And pigs could fly out of my arse. But luckily I see no compelling evidence that either of those things will happen att. 

Granted I haven't been following it closely the last week or so but nothing whatsoever that I have seen has thrown up a red flag. Not sure why there are some panicking about it. 

Link to comment
Share on other sites

2 hours ago, psuhoffman said:

 

Yep and yep. Long range is always an educated guess at best. But so long as we keep seeing a generally favorable AO or NAO or EPO showing up we have a shot at cold/snow. 

The nina thing was driving me nuts. Yes if we just average them all together January is warm. But January 96,2000,2001, and 2011 would say not so fast. It's not that simple. 

Right now the warm up looks like a reload not a permanent pattern shift. That's just a guess based on how it looks to be evolving on the long range guidance and the fact the AO and epo seem to want to stay helpful. But I could be wrong. Won't be the first or last time. Too many people making declarative statements about the long range based on no solid objective evidence.  Yea it could go warm the rest of winter. And pigs could fly out of my arse. But luckily I see no compelling evidence that either of those things will happen att. 

The straight La-Nina analysis is also flawed in my mind because last time I checked it was east based, rather then central or basin wide. I would think that should give us some help in the tropical forcing piece of the LR forecasting game.

Link to comment
Share on other sites

6 hours ago, Cobalt said:

Euro has what looks like a clipper system incoming next Friday

will be interesting to see what future models have regarding it

5a2b9a856ced1_ecmwf_snow_24_ma_27(1).thumb.png.f5f5acd210d22642aa15e4fc1b0f0522.png

Most of the euro ensemble members take that low north of us rather than south like the euro. Doesn't mean the Euro can't or won't happen just means the north of us track is probably more likely. 

Link to comment
Share on other sites

Christmas eve miracle on the gfs 

gfs_mslp_pcpn_frzn_us_50.png

 

Fantasy stuff aside, it does look like the relax will be brief and things could very well go back to wintry right before Christmas. Even with the relax there is cold lurking to the north the whole time so it's not a shutout pattern. A flawed event or pure luck is possible after any cold front down the line. 

Link to comment
Share on other sites

1 minute ago, Bob Chill said:

Christmas eve miracle on the gfs 

gfs_mslp_pcpn_frzn_us_50.png

 

Fantasy stuff aside, it does look like the relax will be brief and things could very well go back to wintry right before Christmas. Even with the relax there is cold lurking to the north the whole time so it's not a shutout pattern. A flawed event or pure luck is possible after any cold front down the line. 

Yup. Cold until Saturday/Sunday, brief 4-5 day warmup, and then back into the ice box it seems

Link to comment
Share on other sites

39 minutes ago, Bob Chill said:

Christmas eve miracle on the gfs 

gfs_mslp_pcpn_frzn_us_50.png

 

Fantasy stuff aside, it does look like the relax will be brief and things could very well go back to wintry right before Christmas. Even with the relax there is cold lurking to the north the whole time so it's not a shutout pattern. A flawed event or pure luck is possible after any cold front down the line. 

Bob, I have absolutely no doubt in my mind that we have plenty of opportunities this year and plenty of successes.

Link to comment
Share on other sites

2 hours ago, Bob Chill said:

Christmas eve miracle on the gfs 

gfs_mslp_pcpn_frzn_us_50.png

 

Fantasy stuff aside, it does look like the relax will be brief and things could very well go back to wintry right before Christmas. Even with the relax there is cold lurking to the north the whole time so it's not a shutout pattern. A flawed event or pure luck is possible after any cold front down the line. 

I kind of like the look long term for snow chances.  There seems to be some attempt at resistance from a SE ridge and WAR but with a favorable epo and AO that could work. I would be more worried we end up on the wrong side of the gradient if the AO wasn't cooperative but in 2014 we managed to win even without that. We could still not score but it's a pattern that would offer chances. 

Link to comment
Share on other sites

2 hours ago, mitchnick said:

Bob, I have absolutely no doubt in my mind that we have plenty of opportunities this year and plenty of successes.

I'm starting to agree with you. And if it goes down as a generally cold and snowy winter you definitely get credit for saying so and sticking with it even when most of us were bearish. 

Link to comment
Share on other sites

4 minutes ago, Bob Chill said:

I'm starting to doubt that the relaxation verifies. I would say 4 days of above to well normal in a row qualifies as a relaxation. That prospect is fading fast. 

I think we get a few days of average to a bit above average then it snaps back. That could qualify as a relax after a week of cold. But the idea we're heading into a prolonged warm stretch is fading. I think we generally agree on how things look right now. 

Link to comment
Share on other sites

Because it's in range...and a very important weather event that almost never happens...the gefs and eps are showing a pretty strong precip signal around the 24th-25th. Both ens bring up a precip event from the south during the general period. Right now it looks like rain is favored but that can easily change. 18z gefs had a couple Christmas miracle solutions. Would be nothing short of amazing to long range track a holiday snow event. And until we're definitely out, we're maybe in. Beyond Christmas looks like a return to a similar pattern were in now but way too far out to pick it apart. 

Late next week is the only chance at more snow that I'm seeing right now and it would be light if it happens. Worth keeping an eye on but like with all NS deals, very hard to trust anything at longer leads. Beyond late week looks like a temporary moderation of temps but the 12z eps made me rethink how much of a moderation and for how long. We should have a good handle on it by this time next week. 

Link to comment
Share on other sites

Next medium range event seems to be this coming Friday.

5a2cb3476f37d_gfs_mslp_pcpn_frzn_neus_20(1).thumb.png.7eede060c280d5b6d33f1c5ea7be8199.png

GFS is close, and the Euro has shown us getting hit by it twice in a row now. I think it's on the table to possibly see a quick 1-3, maybe 3-5 if it materializes. Still too far to even know if there will be precip then, but maybe 10-20% chance of 1-3" during that timeframe. Will be looking through EPS and GEFS soon, but it's there. Tuesday/Wednesday looks like nothing from what I've seen

Link to comment
Share on other sites

6 minutes ago, Cobalt said:

Next medium range event seems to be this coming Friday.

5a2cb3476f37d_gfs_mslp_pcpn_frzn_neus_20(1).thumb.png.7eede060c280d5b6d33f1c5ea7be8199.png

GFS is close, and the Euro has shown us getting hit by it twice in a row now. I think it's on the table to possibly see a quick 1-3, maybe 3-5 if it materializes. Still too far to be even certain, but maybe 10-20% chance of 1-3" during that timeframe. Will be looking through EPS and GEFS soon, but it's there. Tuesday/Wednesday looks like nothing from what I've seen

There are a couple of shortwaves to keep an eye on. The one for early Saturday is pretty sharp and takes a nice pass to our south. Progressive flow but maybe we can get some surface development at the right time and score a light event.

Link to comment
Share on other sites

27 minutes ago, Cobalt said:

Next medium range event seems to be this coming Friday.

5a2cb3476f37d_gfs_mslp_pcpn_frzn_neus_20(1).thumb.png.7eede060c280d5b6d33f1c5ea7be8199.png

GFS is close, and the Euro has shown us getting hit by it twice in a row now. I think it's on the table to possibly see a quick 1-3, maybe 3-5 if it materializes. Still too far to be even certain, but maybe 10-20% chance of 1-3" during that timeframe. Will be looking through EPS and GEFS soon, but it's there. Tuesday/Wednesday looks like nothing from what I've seen

Haha, I’ll give you high marks for optimism 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...