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Tropical Storm Bertha Update & Tropical Atlantic Overview 7/17/08

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This year’s Atlantic tropical season to date is one reason why I love weather: things never happen quite the way you expect them to.  Between Bertha and a few other areas of interest, things keep changing.

Okay.  Bertha is still northeast of Bermuda, just sort of spinning away.  She was centered at 34.2N, 57.4W this morning.  Her movement is ESE @ 9mph, with maximum sustained winds of 60mph and an estimated minimum pressure of 997mb.  Nothing exciting, and not too much has changed since yesterday.

There are officially three Invest storms in the Atlantic right now.  I’ve been writing about Invest-94 as it has made its way across the Atlantic.  I really expected this storm to get its act together by now, but it just hasn’t happened.  It’s in the Caribbean, it still has convection associated with it.  It just hasn’t gotten organized.  As of this afternoon, it’s less likely to get organized than it was yesterday afternoon.  This system should move northwesterly across the Caribbean and impact Belize later this week or early next week.  Whether it’s a Tropical Depression or Storm or anything else at that point is way up in the air.  But even lots of rain can cause destruction.

Invest-95 is the system further west, and is about to affect Nicaragua.  It has a broader area of convection, but is similarly having trouble getting organized, thought that’s mostly due to interactions with land to its west as it spins over warm water.

The third system is now Invest-96.  It is associated with an upper level low that is slowly moving toward the east.  This system moved over Florida yesterday and is sitting just off the East Coast as it meanders toward the north, north-east.  My thoughts with this system is interaction with the mainland U.S. should prevent tropical development, but we’ll see how it turns out.

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