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Mid/Late February will be rocking. (This year we mean it!) February long range discussion.


JenkinsJinkies
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1 minute ago, stormtracker said:

If it can climb the coast...sweet jesus....guys i'm just analyzing it...we know it's in la la land.  

On this run it cut off a little too soon and south. Might still try. Ideally we want it to cut off in the TN valley and move ENE. But my god whatever the end result it’s so close to annihilating us.  

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4 minutes ago, psuhoffman said:

On this run it cut off a little too soon and south. Might still try. Ideally we want it to cut off in the TN valley and move ENE. But my god whatever the end result it’s so close to annihilating us.  

It's 1.25" of QPF down here.  You get badly fringed, so prep for HECS everybody.  

*actually, maybe you don't.  Still going at 384..but can't get total QPF maps beyond that.    I'm so bored.    Anyway, Euro up next!

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4 minutes ago, stormtracker said:

Verbatim, warm air intrusion...so it's a rainer, but I mean...300+ hrs.  I feel like WW.   If it were colder, it would be a HECS

Only the new gfs could take such a perfect setup and turn it into a rainstorm. I’m sending a strongly worded email to NCEP to correct the 12z run. 

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8 minutes ago, stormtracker said:

Verbatim, warm air intrusion...so it's a rainer, but I mean...300+ hrs.  I feel like WW.   If it were colder, it would be a HECS

Don’t weenie me, we’re just analyzing it, but if you go to hr 300-320 and look at the lead in, a lot has to go wrong to end that way. The stj wave cuts off too soon. A stupid little NS wave that I guarantee won’t be there next run comes along at the exact wrong time and create a weakness in the confluence. If both those don’t happen we get crushed.  From that 300 hour setup there was like 9 ways to get a snowstorm and the gfs found the one rain path lol. 

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Just now, psuhoffman said:

Don’t weenie me, we’re just analyzing it, but if you go to hr 300-320 and look at the lead in, a lot has to go wrong to end that way. The stj wave cuts off too soon. A stupid little NS wave that I guarantee won’t be there next run comes along at the exact wrong time and create a weakness in the confluence. If both those don’t happen we get crushed.  From that 300 hour setup there was like 9 ways to get a snowstorm and the gfs found the one rain path lol. 

the GFS is also making two perfect 90 degree angles with like a 250kt jet. color me skeptical!

gfs_uv250_namer_49.png

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Just now, psuhoffman said:

And I know I’m the king of perfect track rainstorms but I wouldn’t worry about the gfs thermals at those ranges. Jan 2016 was warm at day 10-12. It was there but would it be snow was a legit thing. Around day 9 it started trending colder. 

Biggest takeaway has nothing to do with thermals... only that the models may just now be starting to pick up big threats at range.

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On the other hand, if at the end of this pattern the h5 matches 1958 and 2010 but all we got was a bunch of rain from perfect wave passes then we know and I can stop wasting my time. 
 

I firmly do not believe that’s how this is gonna go down though. 

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11 minutes ago, WxUSAF said:

Only the new gfs could take such a perfect setup and turn it into a rainstorm. I’m sending a strongly worded email to NCEP to correct the 12z run. 

12z GFS was a Panic Room CLASSIC. Just amazing stuff.

I agree with others though that the takeaway should be largely positive here. We're seeing multiple strong waves ride under us with plenty of moisture. 

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2 minutes ago, cbmclean said:

One of those mythical -NAO/-EPO combos that some say are physically impossible.   Any need to worry about a lack of a +PNA?

Not really, contour lines show a neg tilted ridge over the west with an undercutting trough. This is how we usually get big storms. The +pna ridge usually builds behind the storm

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5 minutes ago, cbmclean said:

One of those mythical -NAO/-EPO combos that some say are physically impossible.   Any need to worry about a lack of a +PNA?

 

1 minute ago, Terpeast said:

Not really, contour lines show a neg tilted ridge over the west with an undercutting trough. This is how we usually get big storms. The +pna ridge usually builds behind the storm

Plus, a temporary pna ridge between all those pacific waves crashing on will get washed out in the means at that range. There would be some ridging between waves. We don’t need a lot. With that look up top we don’t even want a lot. 

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Just now, stormtracker said:

So at 150, there's an initial slug of moisture that's sliding south of us...but there's some gathering to the west.  There's a broad ass low developing down south off of the LA coast

Whether it’s a hit or not I like the changes over the top. It makes a colder solution possible. 

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