INVEST 90W north of Papua New Guinea

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Chacor
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INVEST 90W north of Papua New Guinea

#1 Postby Chacor » Wed May 20, 2009 9:59 pm

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Very southerly location.
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theavocado
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Re: INVEST 90W north of Papua New Guinea

#2 Postby theavocado » Thu May 21, 2009 3:25 pm

It is pretty south, it seems to be "capped" to the south due to the strong upper level trough (TUTT) and associated vertical wind shear to the north. Expecting that the approaching high-amplitude low to mid level trough over China will move through and free up some room for the STR to move back north. If we see this, we might suddenly be in a very active monsoon trough situation. If you look at the West Pac vorticity, you'll see a very well developed Rossby Wave Train set up in the Western Pacific between 130E and 160E, but very close to the equator with little chance of development at this time due to low coriolis influence.

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