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2012 Winter Banter Thread #3


yoda

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I will never understand the point of micro-analyzing surface temps and other minutiae 5+ days out when the major features are literally moving hundreds of miles between runs yet I see it over and over again. The whole "taken verbatim" thing is the worst.

Why not note it if the precip itself is in question?

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Per request. All of the information regarding the GEFS upgrade (including all of the testing that was done, presentations, etc.) can be found here:

http://www.emc.ncep....201109_imp.html

There is way too much to go through, so to summarize as best I can:

  • Slight improvement in ensemble mean forecast skill (500 heights, 850 Ts, etc.)
  • Pretty significant improvements to T2m and W10m
  • Overall improvement to verification in tropical skill metrics
  • Improved probabilistic guidance (higher scores for things that measure ensemble usefulness, reliability, sharpness, etc.)
  • Significantly improved ensemble spread (and improved spread/skill relationship)
  • Significantly improved TC tracks (better calibrated spread, lower ensemble mean error)

The only real negative I've heard thus far is that the GEFS has inherited some of the operational GFS cold bias (particularly for northern latitudes).

Thanks DTK i appreciate it, and i also appreciate you summarizing it for me so i can learn more and easier.

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Okaaay, did I make any reference to its viability? No. I just said we would normally have the forum hopping right now.

And you write it off.. I say it's finally a depiction from an operational run of this possible outcome which we have been describing for a few days... and from a 00z run inside 120hrs. That's at least noteworthy

NE weenies are out in full force.

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Based on one GFS run? Seriously?

Talk about panicking.

Nah. It's an accumulation of non-events. I never expected this winter to be good or even great, but if we can't manage better than the crappy winters of the '70's, then I'd just assume move on.

I'd be shocked if this one comes back in our favor, and my guess is that you've seen enough too. I could be wrong, but I think people like you also know the writing is on the wall.

No big deal and I'm not bitter. But I've been in one relationship too many where one or the other hung on too long. ;)

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Nah. It's an accumulation of non-events. I never expected this winter to be good or even great, but if we can't manage better than the crappy winters of the '70's, then I'd just assume move on.

I'd be shocked if this one comes back in our favor, and my guess is that you've seen enough too. I could be wrong, but I think people like you also know the writing is on the wall.

No big deal and I'm not bitter. But I've been in one relationship too many where one or the other hung on too long. ;)

To be honest, I'm indifferent about this storm. If it happens, great, I'll be happy. If not, then whatever.

With the setup we have, the GFS will make some pretty drastic changes with each run, until we figure out how/if any phase happens, and how it would be affected by the strength of the 50/50 low and other features. Small changes in timing can lead to huge differences at the surface, so by no means will I take this as a linear trend.

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I've seen this story enough times to know how it plays out, when a primary low starts showing up around ohio, it's game, set, match for the DC area - no matter how good the model runs were prior to that. Now, as always I'll hope it's wrong with this development, but boy this is more of a dagger than when these systems are slightly suppressed on a model run. Oh well.

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I said a while back the classic cap to a winter like this is to watch SNE get a HECS and then a chilly, wet spring arrives in the MA.

ct blizz doesnt deserve a 2'+ storm.. hopefully they get screwed too

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