did anyone notice hurricane like feature in arizona
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did anyone notice hurricane like feature in arizona
last weekend
has anyone ever seen anything like this before
http://wwwa.accuweather.com/news-column ... ster=clark
is this occasional or more like the hurricane that hit brazil (weird new phenomena)
and yes i'm bored
has anyone ever seen anything like this before
http://wwwa.accuweather.com/news-column ... ster=clark
is this occasional or more like the hurricane that hit brazil (weird new phenomena)
and yes i'm bored
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- WindRunner
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Impressive to say the least . . . I would assume it was relatively warm core, as the GFS currently depicts a somewhat warm-core low over the area right now. I really don't know much other than the fact that it looks nice, and probably has no similarities to the S. Atlantic cyclones, other than the whole low-pressure thing.
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If that was actually a hurricane, this thread would have gotten 25 pages in 30 minutes. 

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- AJC3
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cpdaman wrote:thanks for the reply AJC3
in these MCV's left over from decayed MCCs do the bands rotate around the cloud free center
Usually by the time the leftover vort is visible within the mid level convective debris, there isn't much convection left to do any "rotating".
There are exceptions, however, where a well formed MCV continued to form convection beneath it. There was also a case a couple years back of an unusally well defined mesolow that moved through the northeast IIRC. Some dubbed the system a "landphoon" because of it's presentation on radar which also showed an eye-like feature.
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- Wthrman13
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If anyone is interested, these conference papers discuss some results from the BAMEX (Bow Echo and MCV Experiment) field experiment in which several MCV's were noted to persist and re-initiate convection. Very interesting reading.
http://ams.confex.com/ams/11aram22sls/t ... _17653.htm
One has to be careful interpreting satellite imagery when eye or eye-like features appear to be present. Almost any sufficiently intense vortex can possess eye-like structures on scales ranging from dust devils to large extratropical cyclones. This doesn't necessarily mean that they form in the same way or possess thermodynamic characteristics like those of hurricanes. In the case of MCV's, they are indeed warm-core, like tropical cyclones, but with a circulation confined to the mid-levels of the atmosphere, with a cold pool and associated high-pressure dome underneath. However, one of the theories of tropical cyclogenesis includes the possible role of MCV's that form or move over tropical oceans gradually working their way down to the surface, and subsequently spinning up into bonafide TC's.
http://ams.confex.com/ams/11aram22sls/t ... _17653.htm
One has to be careful interpreting satellite imagery when eye or eye-like features appear to be present. Almost any sufficiently intense vortex can possess eye-like structures on scales ranging from dust devils to large extratropical cyclones. This doesn't necessarily mean that they form in the same way or possess thermodynamic characteristics like those of hurricanes. In the case of MCV's, they are indeed warm-core, like tropical cyclones, but with a circulation confined to the mid-levels of the atmosphere, with a cold pool and associated high-pressure dome underneath. However, one of the theories of tropical cyclogenesis includes the possible role of MCV's that form or move over tropical oceans gradually working their way down to the surface, and subsequently spinning up into bonafide TC's.
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Right now this thing is too far away from the Atlantic to become a TC.
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Right now I beleive that "hurricane" is causing havoc over Arizona right now! 

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ALL THE WOMEN AND CHILDREN WILL GO IN THE BOATS FIRST!!!!






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- Wthrman13
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Speaking of MCV's, there is a beautiful example of one just now exiting the Baja Peninsula. It formed from a large convective complex over NW Mexico last night and has tracked SW all day. On a large scale satellite, it looks almost as large as Carlotta to its south. Of course, it's moving out over cool water so is very unlikely to develop into anything, but an interesting feature nonetheless.
http://www.rap.ucar.edu/weather/satelli ... uration=12
There is also another MCV that has initiated convection in SE MO today.
http://www.rap.ucar.edu/weather/satelli ... uration=12
http://www.rap.ucar.edu/weather/satelli ... uration=12
There is also another MCV that has initiated convection in SE MO today.
http://www.rap.ucar.edu/weather/satelli ... uration=12
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