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Hurricane Sandy/Potential EC Event Discussion Part II


free_man

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Let me also say this... the amount of baroclinic forcing available for this storm is obscene given the progged jet configuration over the Atlantic. It is truly a special setup when you throw a perfectly timed hurricane into the mix.

Bob Hart's cyclone phase space shows an extremely unusual (for a landfalling NE hurricane) extratropical transition to warm seclusion. That's frightening. Massive gale field, deep central pressure, and very tight central (warm) core.

12.phase1.png

Was just looking at that. Awesome.

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I wasn't dead; the weather was just boring. But thank you, and who are you?

And I just like the fact that the weather looks to be getting interesting again. I've been hankering for something utterly gloomy, like a day-long pounding rainstorm, complete with wind.

This scenario is even more enticing, and the trend certainly seems favorable for some bumpy weather (though we're still a bit far out as far as time frame is concerned in my opinion; plenty of wiggle room especially when a large Caribbean island is yet to be passed).

Also, has anyone made the Sandy Duncan one eye jokes yet? Because if not, we need to get on that.

Sultan = Ginx

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Writing's been on the wall if that happens... You could visualize the warm seclusion pretty easily in those depictions 2 days ago and in fact I recall Scott, you and I discussing it.

Just before Sandy slips inside the "event horizon" - so to speak - she's warm core (or at least warmer core); but then capture happens - that doesn't automatically require in the physics that things start processing cold/baroclinic, uniformly.

Warm seclusion seemed(s) an easy bet.

All models have been showing the warm seclusion. That's why you're looking at these incredibly deep surface pressure... even on low(er) resolution ensemble members!

I would still be wary of a phase that is east... if the block orients slightly difficult it's perfectly within the realm of possibility that a late phase whips the storm around or near the Maritimes.

We know something special is going to happen. Unclear if it's in New Jersey or Nova Scotia.

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I'm thinking, Wes, that the capture with the gigantic pull west is a bit unlikely. Most storms that have been close to being absorbed seem to have gotten the tug a bit early and moved more S to N rather that such a circuitous route.

it's unusual to have such a wwd track but not unheard of. If you look at Agnes is was track ne and got caught by an upper low and got pulled nwwd. The blocking in this case looks stronger than that. I guess we'll find out. You guys certainly probably have the best chance of getting a big hit but .....I'm less confident in knowing yet where to cut back on the model's spread of solutions except to say I don't see a complete miss.

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it's unusual to have such a wwd track but not unheard of. If you look at Agnes is was track ne and got caught by an upper low and got pulled nwwd. The blocking in this case looks stronger than that. I guess we'll find out. You guys certainly probably have the best chance of getting a big hit but .....I'm less confident in knowing yet where to cut back on the model's spread of solutions except to say I don't see a complete miss.

I agree. And yeah I do think we will (eventually) see a westerly jog. I guess I'm thinking that the storm won't get so far east in the first place. The GFS takes a really out of the way track to get to PWM lol. I could see the thing not losing as much longitude over the weekend and moving in general on a more straight trajectory.

There are also some complex fujiwhara interactions that will be going on here between a whole series of unusually deep lows. That may add some additional uncertainty.

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Economic impacts could be massive as progged for the heart of the American economy (northeast). Could the election be delayed with a storm as currently modeled?

Never, they'd figure something out, NH would of course be majorly subject to voter turnout issues obviously which could be significant.

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Let me also say this... the amount of baroclinic forcing available for this storm is obscene given the progged jet configuration over the Atlantic. It is truly a special setup when you throw a perfectly timed hurricane into the mix.

Bob Hart's cyclone phase space shows an extremely unusual (for a landfalling NE hurricane) extratropical transition to warm seclusion. That's frightening. Massive gale field, deep central pressure, and very tight central (warm) core.

Thanks for posting this, CT Rain. I've completely forgotten to refer to it... and you are right... something like this would be quite frightening... but also unique. I can't say I've ever seen a storm like this occur.

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Interesting that you mention that. I was just commenting on how this situation reminds me of the sense of awe I had back in March 1993 when we started seeing these day 3-5 progs coming into the office showing this insane storm plowing into the eastern seaboard. We couldn't believe it at first, but the models kept insisting that something big was on the way.. run after run. A few days later... Superstorm 1993.

That was back in the days before Internet and social media.. I can only imagine the hysteria this thing will bring if things keep trending the way they are.

we had IRC in 93 , the chatter was incessant.

Still a ways to go on this, agree with Ryan about the left hand turn being more of a parabolic turn.

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Thanks for posting this, CT Rain. I've completely forgotten to refer to it... and you are right... something like this would be quite frightening... but also unique. I can't say I've ever seen a storm like this occur.

There have been cases in the North Atlantic of storms strengthening during ET and going warm seclusion but none that I can think of in the Atl basin that have done so while threatening landfall. Atleast going from hurricane to warm seclusion in ET.

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There have been cases in the North Atlantic of storms strengthening during ET and going warm seclusion but none that I can think of in the Atl basin that have done so while threatening landfall. Atleast going from hurricane to warm seclusion in ET.

Oh of course, it's just unique to see it happening so close to the coast... especially with the extremely low pressures that most of the models are depicting.

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