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Tracking #94L in the SW Carib likely to produce very heavy rains over C America this coming week and a Wave nearing NE coast of S America
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Archives 2010s >> 2011 News Talkbacks

cieldumort
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Reged: Mon
Posts: 1825
Loc: Austin, Tx
Re: Hurricane Irene Landfalls at Cape Lookout, NC
      Sat Aug 27 2011 08:22 PM

Quote:

That 950 pressure reading has me concerned. I dont recall a Cat1 ever having a pressure reading that low. Is it possible that baroclinic influences have started to act on Irene? Also, wont a low pressure increase the surge?




While baroclinic influences have been underway, these are not the only, even primary, reason for Irene's relatively very low pressure. Recall that Ike as a Cat 2 also had very low pressure (also about 950mb, in fact). Extra large and powerful hurricanes do not always end up concentrating their force within the core, and such has been the case with Irene, in many ways much as it had been with Ike.

This lower pressure is helping result in higher-than-usual surge for the given Saffir-Simpson category. It is important to note that the Saffir-Simpson scale is a wind scale, only. The NHC has dropped suggesting any relation to surge, pressure, anything else, other than wind. However, if one wants to relate the current overall intensity of Irene to the old SS scale, 950mb would have lined up with Category 3.

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Subject Posted by Posted on
* Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator Sat Aug 27 2011 08:22 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC cieldumort   Sat Aug 27 2011 08:22 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC danielwAdministrator   Sat Aug 27 2011 08:15 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC WeatherNut   Sat Aug 27 2011 08:01 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 07:18 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC cieldumort   Sat Aug 27 2011 07:09 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC danielwAdministrator   Sat Aug 27 2011 06:52 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator   Sat Aug 27 2011 06:25 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 06:23 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC danielwAdministrator   Sat Aug 27 2011 06:22 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator   Sat Aug 27 2011 05:53 PM
. * * Duck Pier, NC DaViking   Sat Aug 27 2011 05:45 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC cieldumort   Sat Aug 27 2011 05:31 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 05:07 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 03:28 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC cieldumort   Sat Aug 27 2011 03:22 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator   Sat Aug 27 2011 03:01 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 02:47 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC OuraganTornade   Sat Aug 27 2011 02:35 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 01:53 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 01:37 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 01:04 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator   Sat Aug 27 2011 12:50 PM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 11:17 AM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC StrmTrckrMiami   Sat Aug 27 2011 10:26 AM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC ralphfl   Sat Aug 27 2011 10:08 AM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC Random Chaos   Sat Aug 27 2011 10:04 AM
. * * Re: Hurricane Irene Landfalls at Cape Lookout, NC MikeCAdministrator   Sat Aug 27 2011 08:39 AM

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