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Ending out December with a Potential Pattern Change


CoastalWx

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OKX with an absurd pwat of 1.81"!!

 

You can see on the water vapor loop the wild tropical connection from the equatorial Pacific, across the GOM and up the east coast. That 1.81" would be the 2nd highest November PWAT or 3rd highest May PWAT. By far the highest in December, January, February, March or April!

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Well 564+ thicknesses so that warm Air can hold moisture. I have some nice drizzle to show for it.

Endless drizzle here the past 2 days with occasionally some heavier showers today.

39/38.

Just watched Charlie Brown Christmas with my little guy and he thinks Lucy is riot. As we watched I had the realization that, weather wise, Lucy didn't pull the ball away from us this December, she never even showed up with the damn ball. Lol

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If we do go into a splt flow pattern the GFS actually has a tendency to overphase I find more often than not or at least end up bringing things too far north...its the one type of regime where the GFS sometimes ends up not being overly suppressed or progressive.  The timing of these disturbances is when the high is really making its way south and the tendency has been progressive this year so I don't know if I buy any of these yet.

Well, I hope you're wrong, but that does make sense. I thought however, that the storm(s) progged for this time period we're supposed to be SWFEs, which makes me think of PD2 (Presidents Day storm of 2003), which was also a SWFE and which supressed on the GFS until the last 24 hours. I guess I'm assuming that we can't have a SWFE on a split flow.. Correct me if I'm wrong.

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I see there have only been 3 QBO seasons with it being this strongly negative...interestingly enough 2 of the 3 did a 180 from December to January while the other (74-75) did not change at all but 65-66 and 05-06 turned on a dime....I wonder if we'll see the same here.

 

Is there hope for this QBO to weaken or what

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I see there have only been 3 QBO seasons with it being this strongly negative...interestingly enough 2 of the 3 did a 180 from December to January while the other (74-75) did not change at all but 65-66 and 05-06 turned on a dime....I wonder if we'll see the same here.

1965-66", along with 1986-'87, are actually the two analogs that I looked at in considering my update for January.
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If we do go into a splt flow pattern the GFS actually has a tendency to overphase I find more often than not or at least end up bringing things too far north...its the one type of regime where the GFS sometimes ends up not being overly suppressed or progressive.  The timing of these disturbances is when the high is really making its way south and the tendency has been progressive this year so I don't know if I buy any of these yet.

 

 

Well, I hope you're wrong, but that does make sense. I thought however, that the storm(s) progged for this time period we're supposed to be SWFEs, which makes me think of PD2 (Presidents Day storm of 2003), which was also a SWFE and which supressed on the GFS until the last 24 hours. I guess I'm assuming that we can't have a SWFE on a split flow.. Correct me if I'm wrong.

I'm interested in the answer to that as well. Although, I would imagine you can have an swfe in a split flow that never phases and stays oriented on either the northern or southern branch?? Again, would also like clarification.

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That's a good looking pattern on the GFS though. You'll gamble with that anytime. Even the 12/30 setup looks decent. Get a little more energy ejecting out of the southwest and you are looking good.

I'm definitely not tossing the 30th yet. That has been a period signaled for a little bit now.

I'm more concerned of a whiff or weak junk at this point, not the storm cutting west.

It would be pretty funny if we erase the garbage December snow deficit on the last day or the year lol.

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GEFS look ok for the 30th. The thing is, the cold drives so deeply to the south, the response is to try and raise heights in the east. Of course it could dig SW into New Mexico and then the top half of the trough moves over us and shuts it south of SNE..but You definitely want to gamle with the cards dealt. You ain't gonna hit 'em all.

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GEFS look ok for the 30th. The thing is, qhwn the cold drives so deeply to the south, the response is to try and raise heights in the east. Of course it could dig SW into New Mexico and then the top half of the trough moves over us and shuts it south of SNE..but You definitely want to gamle with the cards dealt. You ain't gonna hit 'em all.

I thought you were MPM but no QPF questions

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