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March Pattern and Discussion


Bevo

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On the topic of phasing...there IS shortwave phasing that occurs on the 06z GFS between hours 126 and 156. It's too late and too far north to do any good around here, but it's there. You can see the sfc low and 700mb low strengthen significantly during this time. Here's the loop of it: http://www.meteo.psu.edu/~fxg1/AVN_6z/avnloop.html

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I agree with you - but I try to take my own advice and not buy into it (eventhough mby would benefit). There's just no solid way to call a ULL this far out.

don't get me wrong I know its not the final solution. Infact I just had some time to look at the 0z gfs and compared to the 6z, the 0z is farther north and more positive tilt. Something to follow on the 12z as it comes in.
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On the topic of phasing...there IS shortwave phasing that occurs on the 06z GFS between hours 126 and 156. It's too late and too far north to do any good around here, but it's there. You can see the sfc low and 700mb low strengthen significantly during this time. Here's the loop of it: http://www.meteo.psu.edu/~fxg1/AVN_6z/avnloop.html

 

grit - I had some sort of Jedi feeling you would offer some input.  I think the point about phasing was more in regards to the "make or break" idea it has for snow to occur with this ULL.

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Not to mention climo -- closed lows over the Dakotas usually don't end up passing to our south. I give this one a 1 in 100 chance of panning out for areas south of I-40.

But it's following the trend of the 0z CMC, 0z Euro and 0z UKIE of being further north.

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On the topic of phasing...there IS shortwave phasing that occurs on the 06z GFS between hours 126 and 156. It's too late and too far north to do any good around here, but it's there. You can see the sfc low and 700mb low strengthen significantly during this time. Here's the loop of it: http://www.meteo.psu.edu/~fxg1/AVN_6z/avnloop.html

 

And you can see what happened with the 0z Euro it's starts to "interact" with a piece of energy over the lakes alot quicker and thus it doesn't drop as far southeast.  Below pic's are at 12z on Tuesday.

post-2311-0-62063000-1362150658_thumb.pn

post-2311-0-09932900-1362150665_thumb.pn

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you know I read a lot about the models showing this storm trending north but we're still to far out and the storm is not even on shore yet.  I guess I'm wishcasting but I think we're still in the game with this coming further south.  still just to much time.

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you know I read a lot about the models showing this storm trending north but we're still to far out and the storm is not even on shore yet.  I guess I'm wishcasting but I think we're still in the game with this coming further south.  still just to much time.

 

Well, it was trending south before it was trending north. I think it'll be somewhere in the middle, and NC is in a good spot.

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Well, it was trending south before it was trending north. I think it'll be somewhere in the middle, and NC is in a good spot.

totally agree, I really think its better this far out to be trending north,  plenty of time for it to come back south, as you say somewhere in the middle and NC is in the middle.

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Someone tell me if I'm remembering this correctly.  The massive north trends in previous years were for miller a type scenarios and not these bowling ball type of low that we are dissecting this time.  The track of this storm is dependent on the strength of the block and any potential interaction with northern energy (phasing).  A more northern track would be dependent on less blocking or later phasing of energy.  Phasing is really hard to predict this far out, but based on the winter thus far, it would not surprise me to have less blocking.  The model have overplayed this all winter.  Feel free to chime in and add any thoughts or corrections to this.

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Someone tell me if I'm remembering this correctly.  The massive north trends in previous years were for miller a type scenarios and not these bowling ball type of low that we are dissecting this time.  The track of this storm is dependent on the strength of the block and any potential interaction with northern energy (phasing).  A more northern track would be dependent on less blocking or later phasing of energy.  Phasing is really hard to predict this far out, but based on the winter thus far, it would not surprise me to have less blocking.  The model have overplayed this all winter.  Feel free to chime in and add any thoughts or corrections to this.

 

That's the general idea.  Although I think the blocking will have a larger role to play in this scenario.  The phasing, as it were, is true in how you have defined it.  Just to be clear though, when I referred to phasing earlier, it was in direct response to how it would bring cold air into the system.  I am not questioning it's interaction with other energies.

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