Archive for August 21st, 2009

>The Ups and Downs of Hurricane Bill, eyewall replacements, shear, dry air? and “Maximum Potential Intensity”

Written by on August 21, 2009 in Rest of Europe with 0 Comments
>The Ups and Downs of Hurricane Bill, eyewall replacements, shear, dry air? and “Maximum Potential Intensity”

> http://www7320.nrlssc.navy.mil/hhc/watl/hh3.watl.20090821.gif Current 500mb Geopotential HeightsImage sources: http://wxmaps.org/pix/hemi.00hr.html Hurricane Bill which looked to be on it’s way back up to category 4 status last night with a well defined eye and mesovortices reported circling the eye, has all but collapsed. Long and short of it, Bill is struggling these past 6-12 hours. It comes and […]

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>The Ups and Downs of Hurricane Bill, eyewall replacements, shear, dry air? and "Maximum Potential Intensity"

Written by on August 21, 2009 in Rest of Europe with 0 Comments
>The Ups and Downs of Hurricane Bill, eyewall replacements, shear, dry air? and "Maximum Potential Intensity"

> http://www7320.nrlssc.navy.mil/hhc/watl/hh3.watl.20090821.gif Current 500mb Geopotential HeightsImage sources: http://wxmaps.org/pix/hemi.00hr.html Hurricane Bill which looked to be on it’s way back up to category 4 status last night with a well defined eye and mesovortices reported circling the eye, has all but collapsed. Long and short of it, Bill is struggling these past 6-12 hours. It comes and […]

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>Comparing Mark Vogan to Joe Bastardi’s Winter Forecast: Striking Similarities

Written by on August 21, 2009 in Rest of Europe with 1 Comment
>Comparing Mark Vogan to Joe Bastardi’s Winter Forecast: Striking Similarities

>I have been meaning to do this for about a month now but with other weather and events taking priority, it has waited until now. I want you to check out my winter fore for 2009-10 which I wrote BEFORE the release of AccuWeather’s winter forecast on Jul 14. Note the striking similarities between these […]

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>Bill ready to become category 4 once again, track uncertainly remains

Written by on August 21, 2009 in Rest of Europe with 1 Comment
>Bill ready to become category 4 once again, track uncertainly remains

> Bill’s recent satellite presentation shows a stronger better organised hurricane once again with some better defined features such as the eye and strong, deep convection and extremely high, cold cloud tops that make up the eyewall hot towers which is wrapped entirely around the eye rather than only in some quadurants. This increase in […]

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