What kinda hurricane season would we have w/107F SSTs???????
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- JamesFromMaine2
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We thought it was unlikely we would have a Hurricane beat the record for lowest pressure and yet it happend, we thought we would never see a hurricane season like 2005 and yet it happend. It was unheard of that we would have 2 or 3 cat 5s in one year and yet we had 4 cat 5 last year. Times are changing and if you can't change and adapt with the times then you won't last very long! Theres always room to learn new things and you might just find out some time that hypercanes are real you can't just say they don't because what we know now doesn't support that they do!
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- milankovitch
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Hypercanes are just theoretical phenomana, you will never see a hypercane! But there is some science (theoretical) behind them. Hypercanes are one of those interesting concepts that attracts the "fringe element." In response to DoctorHurricane of course higher SST lower the environmental SLP but as we all know stronger hurricanes still form in warmer water. Warmer upper atmospheric temperatures occur as well another negative feedback, but intensity still increaces with SST. Hypercanes should be very compact, so your correct there. Tip is NOT a hypercane or anywhere close to being a hypercane.
From WIKI:
According to Kerry Emanuel, an atmospheric scientist at MIT:
"We were trying to predict the maximum intensity that ordinary hurricanes could reach, and we noticed that if we made the ocean too warm and the atmosphere too cold, the equation didn't yield any sensible solution -- it kind of blew up.' Unable to solve the problem with pencil and paper, Emanuel and his colleagues ran a computer simulation of a hurricane over a pool of hot ocean. The computer spat out a phenomenal storm--20 miles high, with winds approaching 500 miles an hour.
"The water that created this hypercane was so hot--120 degrees at the center of the pool--that the team knew such a storm couldn't occur in the present climate "or in any climates that Earth had experienced, except maybe near its origin. But we thought that under extraordinary circumstances one might have observed such a storm." A large asteroid or comet slamming into the ocean floor, for instance, would release a lot of heat. If an area of ocean at least 30 miles across were heated to around 120 degrees, Emanuel and his colleagues have found, the result would be a hypercane. An ordinary hurricane forms over a much larger region of the ocean, and one that has been baked to a much lower temperature by the sun. The warm water heats the air above it, and as that warm air begins to rise, it creates a low-pressure zone that draws in air from all sides. The wind causes more water to evaporate, which transfers more heat to the air, which accelerates the nascent storm--and since Earth is spinning, the storm spins, too.
In an ordinary hurricane, friction exerted by the sea on the swirling winds limits their speed to 200 miles an hour or less. But in a hypercane, that control is overwhelmed by the tremendous heat, which keeps pumping energy into the storm. "The heat engine of the hurricane just runs away," Emanuel says. "Friction can't keep up with it." The winds accelerate to 500 miles an hour. Because the angular momentum of the storm must stay the same, it shrinks to a tight knot just 10 miles across--around a sixth of the diameter of an ordinary hurricane. Meanwhile it is growing to twice the height, 20 miles high or so, because the air in its center is so hot; that air must rise until it has cooled to the temperature of the air around it. The result is a storm tall enough and strong enough to catapult a huge amount of material -- water vapor, sea salt, and maybe dust, if the crater happened to nick a coastline -- well into the stratosphere.
For some more technical information on hypercanes see...
(I'm not sure if I'm only able to connect to this because I'm on a university server)
ftp://texmex.mit.edu/pub/emanuel/PAPERS/max88.pdf
From WIKI:
According to Kerry Emanuel, an atmospheric scientist at MIT:
"We were trying to predict the maximum intensity that ordinary hurricanes could reach, and we noticed that if we made the ocean too warm and the atmosphere too cold, the equation didn't yield any sensible solution -- it kind of blew up.' Unable to solve the problem with pencil and paper, Emanuel and his colleagues ran a computer simulation of a hurricane over a pool of hot ocean. The computer spat out a phenomenal storm--20 miles high, with winds approaching 500 miles an hour.
"The water that created this hypercane was so hot--120 degrees at the center of the pool--that the team knew such a storm couldn't occur in the present climate "or in any climates that Earth had experienced, except maybe near its origin. But we thought that under extraordinary circumstances one might have observed such a storm." A large asteroid or comet slamming into the ocean floor, for instance, would release a lot of heat. If an area of ocean at least 30 miles across were heated to around 120 degrees, Emanuel and his colleagues have found, the result would be a hypercane. An ordinary hurricane forms over a much larger region of the ocean, and one that has been baked to a much lower temperature by the sun. The warm water heats the air above it, and as that warm air begins to rise, it creates a low-pressure zone that draws in air from all sides. The wind causes more water to evaporate, which transfers more heat to the air, which accelerates the nascent storm--and since Earth is spinning, the storm spins, too.
In an ordinary hurricane, friction exerted by the sea on the swirling winds limits their speed to 200 miles an hour or less. But in a hypercane, that control is overwhelmed by the tremendous heat, which keeps pumping energy into the storm. "The heat engine of the hurricane just runs away," Emanuel says. "Friction can't keep up with it." The winds accelerate to 500 miles an hour. Because the angular momentum of the storm must stay the same, it shrinks to a tight knot just 10 miles across--around a sixth of the diameter of an ordinary hurricane. Meanwhile it is growing to twice the height, 20 miles high or so, because the air in its center is so hot; that air must rise until it has cooled to the temperature of the air around it. The result is a storm tall enough and strong enough to catapult a huge amount of material -- water vapor, sea salt, and maybe dust, if the crater happened to nick a coastline -- well into the stratosphere.
For some more technical information on hypercanes see...
(I'm not sure if I'm only able to connect to this because I'm on a university server)
ftp://texmex.mit.edu/pub/emanuel/PAPERS/max88.pdf
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There are acute differences between something being unlikely and something being physically impossible. It's very possible and likely for sometime in the future, to have Wilma's pressure record and 2005's storm record beaten. I know it will happen. But what will not happen is a 300 MPH hurricane. Sorry, I already went over this.
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If the shear is low, a tropical storm could turn into a Category 5 hurricane within several hours...we'd be paying attention to EVERY blob in the Atlantic...Invests would need to be named as well...
Also we'd be seeing hurricanes form and thrive even in subarctic waters and temperate bodies like the Great Lakes...
Also we'd be seeing hurricanes form and thrive even in subarctic waters and temperate bodies like the Great Lakes...
Last edited by CrazyC83 on Sun Mar 19, 2006 8:32 pm, edited 1 time in total.
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- Audrey2Katrina
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Hurricane Floyd wrote:When it comes to hypercanes, one part of me wants to see one, the common sense side of me doesnt
Believe me-- trust the "common sense" side... it would be a catastrophe (should it approach any land area) the likes of which we've never seen in recorded history.
A2K
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- Audrey2Katrina
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Getting back to the topic, however; I agree that what we conceive as a "hypercane" is at best an impossibility unless one considers geological time possibilities. Given SST's at 107 the "potential" for a lot more "super" storms would be there; but as someone else already pointed out, it would require a lot of other factors to be optimal as well. The one thing you could figure is that with SST's that high, the land temps would be pretty unbearable!
A2K
A2K
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Flossy 56 Audrey 57 Hilda 64* Betsy 65* Camille 69* Edith 71 Carmen 74 Bob 79 Danny 85 Elena 85 Juan 85 Florence 88 Andrew 92*, Opal 95, Danny 97, Georges 98*, Isidore 02, Lili 02, Ivan 04, Cindy 05*, Dennis 05, Katrina 05*, Gustav 08*, Isaac 12*, Nate 17, Barry 19, Cristobal 20, Marco, 20, Sally, 20, Zeta 20*, Claudette 21 IDA* 21 Francine *24
- brunota2003
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I'm curious, wouldnt a storm tear itself apart after reaching a certain speed? i mean, the outer edges wouldnt be able to keep up with the inner core because the inner core spins faster, so the inner core would eventually tear itself away from the outer side of the hurricane, thus creating a pocket of rain free space, like what dry air entrusion does to it, thus causing it to weaken...
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With higher SSTs come huge changes in other weather patterns. So, just because the water may be very hot does not mean there would be any tropical systems above it.
If the water gets that hot, then everything else around the world - climatologically speaking - would change as well, and what we understand now about tropical development would then take on a whole new meaning, which may or may not be condusive to tropical development..
I believe "slight" increases of a only few degrees is more likely (than SSTs of 107 degrees) to cause the catastrophic results. Anything more will significantly impact everything else (pressures, shear, wet atmosphere, etc...) necessary to develop and support tropical activity.
If the water gets that hot, then everything else around the world - climatologically speaking - would change as well, and what we understand now about tropical development would then take on a whole new meaning, which may or may not be condusive to tropical development..
I believe "slight" increases of a only few degrees is more likely (than SSTs of 107 degrees) to cause the catastrophic results. Anything more will significantly impact everything else (pressures, shear, wet atmosphere, etc...) necessary to develop and support tropical activity.
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