What is the cause of...

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Jim Cantore

What is the cause of...

#1 Postby Jim Cantore » Fri Sep 29, 2006 3:29 pm

The abrupt re-curving of this years cape verde storms, I know it's an El Nino pattern but is it a lack of ridging?
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Evil Jeremy
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#2 Postby Evil Jeremy » Fri Sep 29, 2006 3:48 pm

yep! high pressure weaknesses in the ocean, the missing "Bermuda High", and the constant fronts off of the USA East Coast!
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#3 Postby brunota2003 » Fri Sep 29, 2006 3:57 pm

The cause? Mother Nature proving she is still in total control...otherwise I dont know...
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Jim Cantore

#4 Postby Jim Cantore » Fri Sep 29, 2006 4:17 pm

What about prevailing westerlies? are they involved?
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#5 Postby Evil Jeremy » Fri Sep 29, 2006 4:26 pm

nope!
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#6 Postby LarryWx » Fri Sep 29, 2006 5:24 pm

Historical stats say that El nino years tend to mean a relatively low threat to the U.S. from storms that first become named east of 50W. El Nino storm hits generally occur from storms that form much closer to the U.S.
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superfly

#7 Postby superfly » Fri Sep 29, 2006 5:28 pm

CV storms rarely impact the US, it's not just this year. The ones that do just tend to be rather powerful most of the time.
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#8 Postby gatorcane » Fri Sep 29, 2006 7:56 pm

temps across the mid-west are some 10-20 degrees BELOW normal this time of year. That translates to strong EC troughs pushing offshore. So actually all the troughiness this year is not that normal. The long-wave pattern has worked to our advantage so far. Let's hope it doesn't change for Oct.
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#9 Postby wxmann_91 » Fri Sep 29, 2006 8:01 pm

Florence.

It's large size left a huge weakness over the central Atlantic that never filled back in as it was quickly reinforced with Gordon and Helene.

Not that it really mattered much anyway, there was really nothing anomalous about this year so you'll just have to go with climo, which argues recurve.
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#10 Postby gatorcane » Fri Sep 29, 2006 8:22 pm

wxmann_91 wrote:Florence.

It's large size left a huge weakness over the central Atlantic that never filled back in as it was quickly reinforced with Gordon and Helene.

Not that it really mattered much anyway, there was really nothing anomalous about this year so you'll just have to go with climo, which argues recurve.


I don't think Florence was the main cause. What steered Florence away east of 60W was a massive trough for early Sept. Those troughs just keep coming. Its amazing how when these storms curve they curve just perfectly as to not hit an land areas often. Look at Isaac, who will curve just in time to miss Novia Scotia. Makes you wonder if there is a reason why the US is shaped like it is.
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#11 Postby Evil Jeremy » Fri Sep 29, 2006 8:49 pm

i still think that NS will get hit.
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#12 Postby gpickett00 » Sat Sep 30, 2006 3:20 am

the sun controls all weather
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