The ITCZ is active and erratic.

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Aquawind
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The ITCZ is active and erratic.

#1 Postby Aquawind » Thu Jul 26, 2007 3:51 pm

Well as we have all noticed the ITCZ has been more active with convection and waves recently. Looks like the ITCZ made a big dip southward this last dekadel as it exited Africa. I am not sure if that was in response to the large waves that have exited or pressures to the north. But it has been active and the ITCZ in the west is moving all over the place. I would assume it is moving back north now.


Image

During the period from July 11 - 20, 2007, the African portion of the ITCZ was located near 16.7 degrees north latitude when averaged over the ten day period and from 15W-35E. This compares with a normal position of 17.6N and a position last year of 18.2N. In the west, from 10W-10E, the ITCZ was located near 16.7 degrees north, compared to the long term mean of around 18.7 degrees north, and a position last year of 19.4N. In the east, from 20E-35E, the ITCZ was located near 17.1N, compared with 16.1N for the mean, and 17.2N for last year. The ITCZ continues to move erratically in the west, while in the east it remains above normal.


http://www.cpc.ncep.noaa.gov/products/f ... itcz.shtml
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Re: The ITCZ is active and erratic.

#2 Postby cycloneye » Thu Jul 26, 2007 3:54 pm

Yep,what this shows is that crunch time is arriving.
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#3 Postby hurricanetrack » Thu Jul 26, 2007 4:32 pm

Gooooooooooooooooooooooood!
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#4 Postby 'CaneFreak » Thu Jul 26, 2007 4:38 pm

GOOOOOOOOOOOOOOOOOOOOOOOD!!!!!
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Re: The ITCZ is active and erratic.

#5 Postby canegrl04 » Thu Jul 26, 2007 9:20 pm

Something I've been meaning to ask for along time. What the hec is ITCZ and how does it figure in the development of storms?
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Re: The ITCZ is active and erratic.

#6 Postby Sanibel » Thu Jul 26, 2007 10:07 pm

ITCZ: Inter Tropical Convergence Zone


It's that belt of clouds across the Atlantic at around 10 latitude. It is the conveyor belt of clouds that exit Africa and form storms. They form there because weather to the north moves west to east and the weather south of the ITCZ is tropical and moves east to west (like hurricane systems). This border causes disruption in the atmosphere that chases up weather systems that form into storms.
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Re: The ITCZ is active and erratic.

#7 Postby canegrl04 » Thu Jul 26, 2007 10:49 pm

Thanks,Sanibel :D
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Re: The ITCZ is active and erratic.

#8 Postby gatorcane » Fri Jul 27, 2007 9:11 am

Hey Paul it should not be alarming that the ITCZ is erratic. That pink line represents a mean over many years. But if you look at each year individually you would also see erratic behavior.
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Re: The ITCZ is active and erratic.

#9 Postby Frank2 » Fri Jul 27, 2007 10:00 am

As Steve Lyons mentioned over the last day or two, right now the main feature in the Eastern Atlantic is a monsoon trough - the strong wave mentioned yesterday seems to have merged with this feature:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/EATL/VIS/20.jpg

other than that, there is a great deal of dry air as shown by the giant field of strato-cu to the northwest of the trough, and, an area of dust just over and off the African coast...
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#10 Postby vacanechaser » Fri Jul 27, 2007 10:04 am

Goooooooooooooood!!!

:)

Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team
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Re:

#11 Postby gatorcane » Fri Jul 27, 2007 10:09 am

vacanechaser wrote:Goooooooooooooood!!!

:)

Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team


Do you mean good or God (here we go) here? :eek: :eek: :eek:
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Re: The ITCZ is active and erratic.

#12 Postby vacanechaser » Fri Jul 27, 2007 12:20 pm

Frank2 wrote:As Steve Lyons mentioned over the last day or two, right now the main feature in the Eastern Atlantic is a monsoon trough - the strong wave mentioned yesterday seems to have merged with this feature:

http://www.ssd.noaa.gov/PS/TROP/DATA/RT/EATL/VIS/20.jpg

other than that, there is a great deal of dry air as shown by the giant field of strato-cu to the northwest of the trough, and, an area of dust just over and off the African coast...


i posted this in another thread, but here it is...

Image


the sal, or dust and dry air is not all that bad right now in the atlantic... i have seen much worse... i just dont think sal, or dry air is really a problem...


Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team
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Re:

#13 Postby vacanechaser » Fri Jul 27, 2007 12:22 pm

vacanechaser wrote:Goooooooooooooood!!!

:)

Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team


Good!!!! here we go... give us something to track... :wink: :lol:


Jesse V. Bass III
http://www.vastormphoto.com
Hurricane Intercept Research Team
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