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Southeast Mid/Long Range Discussion IV


burgertime

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looks like this run puts a lot of energy in the first wave but theres a tell-tale sign holding back. Notice the baggy trough through the mid South? I think the GFS is displaying its bias here. The ecmwf was further west, if you compromise we may have a weaker first system and a stronger cutoff system for the deep south at some point. Hard to say, but it could trend that way, and thats' how I've liked it or leaned . But I wouldn't commit, just venturing some guesses. Its a loaded potential, but unusual setup. In the end the midatlantic is probably looking good with either scenario, and possibly the deep southor upper south/Tenn Valley or Carolinas N. GA if the development is slower.

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looks like this run puts a lot of energy in the first wave but theres a tell-tale sign holding back. Notice the baggy trough through the mid South? I think the GFS is displaying its bias here. The ecmwf was further west, if you compromise we may have a weaker first system and a stronger cutoff system for the deep south at some point. Hard to say, but it could trend that way, and thats' how I've liked it or leaned . But I wouldn't commit, just venturing some guesses. Its a loaded potential, but unusual setup. In the end the midatlantic is probably looking good with either scenario, and possibly the deep southor upper south/Tenn Valley or Carolinas N. GA if the development is slower.

we can sure hope! but i dont expect much

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in the medium range around days 10 through 13 there is weak greenland ridging and western Canada ridging...that combo is a good one for us. but later int eh run it takes the block to northern Alaska and that is where we've been all winter , atleast lately. There is enormous potential here in this type of flow and atleast the models are holding on to some western Canada ridging and even slight split flow. Usually when the GFS is adamant, its right, but takes a while. HOpefully we don't get back to the exact same spot we began in early Jan. with the Siberian block though. By then strong arctic highs could be covering Canada and its a different ball game. obviously we're heading to a new pattern, but its still no easier to forecast. I thought it wouldn't be. There is too much going on in the Pacific flow.

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I'd bet the ensembles will show strong + anomalies western Canada and strong - anomalies in the Southeast. Thats a good combo. It may take a while, but I think thats where the pattern is heading.

Nice one. Looks much better than the OP with the western ridge/eastern trough. Now to see what the Euro has in store.

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I think that is last night run... It update here in starting about 12 am cdt...

It may have been but was hoping someone would tell me whether or not it's the updated one. I went to Allan's site under the 0z and saw a similar image so I figured it was the correct 0z. Hard to tell for me personally when looking at the PSU site sometimes...

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It may have been but was hoping someone would tell me whether or not it's the updated one. I went to Allan's site under the 0z and saw a similar image so I figured it was the correct 0z. Hard to tell for me personally when looking at the PSU site sometimes...

Anything that is in red on the PSU website is material that is outdated...The blueish color is the updated for that model run..

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Anything that is in red on the PSU website is material that is outdated...The blueish color is the updated for that model run..

Yeah I see it now. Thanks for clearing it up for me. I usually google for it so I wasn't aware of the color representation on the individual frames. My apologies SE peeps.

EDIT: Deleted so that anyone who was not on last night will mistakenly see it as the new 0z CMC.

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the european looks like a dream for someone. It takes the first wave and keeps it separate, going through Ohio Valley, meanwhile the big ridge develops and energy drops due south through the plains, and a 1032 high north of Minnesota pushes cold air down behind the Ohio Valley wave. At 138 the ridge in western Canada is tipping east, thats a sign that the digging plains wave could develop in the Deep South. We'll see.

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at 186 and 192 the energy is still digging. The model sees something. This run is extremely close to showing southern GA or coastal GA or SC development with interior snow. Verbatim there is snow interirior upper south MS, TN, AL, GA Carolinas but light. Indicative of a closing off system aloft. Upper temps support snow, not sure about surface temps, esp. east of the Apps.

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at 186 and 192 the energy is still digging. The model sees something. This run is extremely close to showing southern GA or coastal GA or SC development with interior snow. Verbatim there is snow interirior upper south MS, TN, AL, GA Carolinas but light. Indicative of a closing off system aloft. Upper temps support snow, not sure about surface temps, esp. east of the Apps.

I noticed DT on his facebook page was screaming rain for all the East Coast. He posted a map at hour 120...

I'm glad for once we're getting something half-way worth tracking.

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This is definitely somthing to watch. Not normally how we get our winter storms though, but the potential as I mentioned a couple days ago, in an anomalous flow like this, is there. We've tended toward cutoffs. If the cutoff doesnt' become too extreme or too west, then I think odds are this ends up being a winter storm for some areas, maybe even many, depending on where the surface low and moisture axis takes shape. Needs to shift a few miles west yet, but its close.

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compromising the old runs of each, the new runs and the ensembles, and it still looks to me like a good possibility of a major southeast coastal. Thats all it is at 168 hours though, potential.

After reviewing the rest of the run, I think this is the best chance this season of something major winter wise, but I wouldn't pin point it yet. First hunch is MidAtlantic coast, from NC into NJ. Second choice is interior South (TN valley/Apps).

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I think by Monday models will start to come together. First guess is a major Winter storm for "somewhere" between Arkansas Georgia and Virginia. Western Canada ridging will be the key to how far south and west this cuts off. Big unknown yet, I've seen this before. Sort of similar to Jan 1996.

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