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Invest 94L just northeast of the ABC islands in the Caribbean moving west, 20% development chance. Another area near the Cabo Verde islands has a 20% chance to develop over the next 7 days.
Days since last H. Landfall - US: Any 300 (Idalia) , Major: 300 (Idalia) Florida - Any: 300 (Idalia) Major: 300 (Idalia)
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General Discussion >> Hurricane Ask/Tell
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Clark
Meteorologist


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Posts: 1710
Re: What is this?
      Sun Sep 10 2006 10:15 PM

There's some sort of boundary/wave associated with that feature. My guess is that given where it is located, not too far from the edge of a jet entrance region, it could be an isolated gravity wave event. There appears to be a weaker impulse just behind it, particularly evident on the southern flank of that initial wave.

It's more interesting to watch than anything. Gravity waves come with perturbations in the flow fields, meaning that this event could be perturbing the flow just enough to bring some moisture into the viewable range of the water vapor sensor. That all is my educated guess, however, and not definitive.

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Subject Posted by Posted on
* What is this? Myles Sun Sep 10 2006 10:15 PM
. * * Re: What is this? Clark   Sun Sep 10 2006 10:15 PM
. * * Re: What is this? Myles   Sun Sep 10 2006 10:37 PM
. * * Re: What is this? danielwAdministrator   Sun Sep 10 2006 10:48 PM

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