Jump to content
  • Member Statistics

    17,509
    Total Members
    7,904
    Most Online
    joxey
    Newest Member
    joxey
    Joined

11/13 - 11/16 Potential Storm Threat


user13

Recommended Posts

The GFS has just been so unstable that it would not surprise me in the slightest if it completely caved to the Euro at any time. The run to run shifts by the Euro have been more gradual. The GFS also has a known bias for losing storms in the medium range.

Euro op is about as unstable if not moreso than the GFS at day 7 and beyond.

Link to comment
Share on other sites

  • Replies 391
  • Created
  • Last Reply

I don't really get what the excitement is about. Pattern doesn't support this, ensembles don't support this, the models that have had it have had absolutely no run-to-run consistency.

Has fail written all over it.

I'm more interested in the arctic fropa on Tuesday.

Link to comment
Share on other sites

 

I don't really get what the excitement is about. Pattern doesn't support this, ensembles don't support this, the models that have had it have had absolutely no run-to-run consistency.

Has fail written all over it.

I'm more interested in the arctic fropa on Tuesday.

 

To be fair I would never expect to see any large degree of run to run consistency at the range we are looking at. 

Link to comment
Share on other sites

 

I don't really get what the excitement is about. Pattern doesn't support this, ensembles don't support this, the models that have had it have had absolutely no run-to-run consistency.

Has fail written all over it.

I'm more interested in the arctic fropa on Tuesday.

 

So you back up your statement with one quote from a met in the New England forum?

 

Until the Euro caves it has to be considered a possibility. We've gotten snowstorms before in worse setups.

 

If the GFS was the one showing the storm and the Euro had nothing it would more merit.

Link to comment
Share on other sites

The trend of the Euro has been east so we will see if it continues to trend east. If it does happen again, you can say that the GFS has been better than the Euro of late. Should be interesting to see what happens. The Euro is by itself with the solution.

 

Actually it started as a coastal bomb, then went inland and brought us rain, and is now back off the coast again. This "storm' is not moving in one direction; in fact it is oscillating between off the coast and inland. That doesn't mean this thing can't still be a phantom, just that it hasn't been moving east the whole time.

Link to comment
Share on other sites

Exactly, declaring a threat over when one of the major models still has a major event is setting yourself up for failure.

I think you've been watching the Euro long enough to know its behavior. Firstly, if you go back a week, the Euro had nothing there. It looked just as the GFS looks now. Then, about three days ago, it suddenly blows up this system out of nowhere. Whatever it was picking up on was WRONG. I repeat WRONG. How do we know this? Because almost every model that followed it and had picked up on it has dropped it now for over 24 hours and not only have the other models dropped it, some of them have now completely lost the sharpening trough and all the other features that were WRONG in the first place on those maps. The other models are not that much worse than the Euro and in some cases they are better. This is one of those cases and we saw the same thing last January (I think) with a storm the Euro was first to pick up on and last to drop.

WX/PT

Link to comment
Share on other sites

All we are doing is offering our opinion. When each one of us is throwing an opinion casting doubts on the storm...there are reasons why. Not sure why it's frowned upon to say that the chances of snow are bleak.

 

I don't think anyone is really frowning upon the opinions themselves. Chances for snow are always bleak around here lol there's a reason why we only average between 25 and 30 inches. It's just that the lead time is so significant that it feels wrong to write something off at 150 hours. To tell you the truth the fact that we are even tracking anything at this lead time is ridiculous. Since when did we start looking at storms at 180+ hours?

Link to comment
Share on other sites

Are we bringing Sandy into this? Last time I checked, you can't relate model performance from a situation that had originated from the Deep Tropics. This storm that we are looking at is from an entirely different origin. A mid latitude cyclone, in a non tropical nature.

Although, I agree that this threat is dead so far.

Link to comment
Share on other sites

I think you've been watching the Euro long enough to know its behavior. Firstly, if you go back a week, the Euro had nothing there. It looked just as the GFS looks now. Then, about three days ago, it suddenly blows up this system out of nowhere. Whatever it was picking up on was WRONG. I repeat WRONG. How do we know this? Because almost every model that followed it and had picked up on it has dropped it now for over 24 hours and not only have the other models dropped it, some of them have now completely lost the sharpening trough and all the other features that were WRONG in the first place on those maps. The other models are not that much worse than the Euro and in some cases they are better. This is one of those cases and we saw the same thing last January (I think) with a storm the Euro was first to pick up on and last to drop.

WX/PT

The Euro first had this at hour 240 and it was quickly dismissed. The GGEM was the second model to show it. I don't put much stock if any at all in the GGEM. I just think dismissing this threat is a tad premature and I'll leave it at that. I'm not hugging one model or the other.

Link to comment
Share on other sites

I think you've been watching the Euro long enough to know its behavior. Firstly, if you go back a week, the Euro had nothing there. It looked just as the GFS looks now. Then, about three days ago, it suddenly blows up this system out of nowhere. Whatever it was picking up on was WRONG. I repeat WRONG. How do we know this? Because almost every model that followed it and had picked up on it has dropped it now for over 24 hours and not only have the other models dropped it, some of them have now completely lost the sharpening trough and all the other features that were WRONG in the first place on those maps. The other models are not that much worse than the Euro and in some cases they are better. This is one of those cases and we saw the same thing last January (I think) with a storm the Euro was first to pick up on and last to drop.

WX/PT

If there other major models such as the GFS and GGEM were shifting back and forth, then I'd agree, it would not yet be time to dismiss this threat. But that's not the case. The other factor which we've discussed is that there is a positive NAO. There's really no underlying reason for the the development of the trough or cut-off low the Euro developed in the first place. The pattern doesn't support this. Ballgame over, the Yankees win!

WX/PT

Link to comment
Share on other sites

i've seen the euro overamplify SE moving s/w's plenty of times... remember when it busted badly on a 4 day forecast in mid dec 2010?

 

 

Agree. But the major player, IMO, is the H5 closed low in Canada. Historically, the euro handles northern energy much better then the GFS but given the euro's erratic behavior over the past few months, it is unknown if that applies here.

Link to comment
Share on other sites

This thread is filled with lots of modelology and model hugging and not enough analysis of the actual weather pattern. The big ridge in the Pacific is elongated towards the Aleutian Islands. While extremely anomalous and strong -- it is west of where you would like to see it for big time amplification of the pattern down across the CONUS. This is not to say that the storm has zero percent chance of happening, but it doesn't take much to understand why the pattern is progressive. Because this ridge is elongated and farther west, the ridge that comes over the top of the Central US is inherently progressive and ends up too far east.

 

The storm system and associated energy over the Central US that tries to amplify, as a result, has very little time to do so. As long as every model and ensemble member has a good general idea as to what is going on, this pattern is way too fast to support any organized or strengthening storm tucking in near the coast and providing significant precipitation to our area. Simple as that.

 

post-6-0-04991600-1383928831_thumb.png

Link to comment
Share on other sites

This thread is filled with lots of modelology and model hugging and not enough analysis of the actual weather pattern. The big ridge in the Pacific is elongated towards the Aleutian Islands. While extremely anomalous and strong -- it is west of where you would like to see it for big time amplification of the pattern down across the CONUS. This is not to say that the storm has zero percent chance of happening, but it doesn't take much to understand why the pattern is progressive. Because this ridge is elongated and farther west, the ridge that comes over the top of the Central US is inherently progressive and ends up too far east.

 

The storm system and associated energy over the Central US that tries to amplify, as a result, has very little time to do so. As long as every model and ensemble member has a good general idea as to what is going on, this pattern is way too fast to support any organized or strengthening storm tucking in near the coast and providing significant precipitation to our area. Simple as that.

 

attachicon.giffast.png

Extremely well put!

WX/PT

Link to comment
Share on other sites

Guest Imperator

This thread is filled with lots of modelology and model hugging and not enough analysis of the actual weather pattern. The big ridge in the Pacific is elongated towards the Aleutian Islands. While extremely anomalous and strong -- it is west of where you would like to see it for big time amplification of the pattern down across the CONUS. This is not to say that the storm has zero percent chance of happening, but it doesn't take much to understand why the pattern is progressive. Because this ridge is elongated and farther west, the ridge that comes over the top of the Central US is inherently progressive and ends up too far east.

 

The storm system and associated energy over the Central US that tries to amplify, as a result, has very little time to do so. As long as every model and ensemble member has a good general idea as to what is going on, this pattern is way too fast to support any organized or strengthening storm tucking in near the coast and providing significant precipitation to our area. Simple as that.

 

attachicon.giffast.png

 

A+ John.

Link to comment
Share on other sites

This thread is filled with lots of modelology and model hugging and not enough analysis of the actual weather pattern. The big ridge in the Pacific is elongated towards the Aleutian Islands. While extremely anomalous and strong -- it is west of where you would like to see it for big time amplification of the pattern down across the CONUS. This is not to say that the storm has zero percent chance of happening, but it doesn't take much to understand why the pattern is progressive. Because this ridge is elongated and farther west, the ridge that comes over the top of the Central US is inherently progressive and ends up too far east.

 

The storm system and associated energy over the Central US that tries to amplify, as a result, has very little time to do so. As long as every model and ensemble member has a good general idea as to what is going on, this pattern is way too fast to support any organized or strengthening storm tucking in near the coast and providing significant precipitation to our area. Simple as that.

 

attachicon.giffast.png

 

 

Today's 12z GGEM, UKMET and GFS all show what you are talking about perfectly.

I would be surprised if the Euro didn't make a major correction since the entire 12z suite is way OTS.

Link to comment
Share on other sites

Archived

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...