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November Mid-Long Range Discussion


MillzPirate

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Thanks...nicely done....you can see the more pronounced split flow in the bigger storms......

Split flow / open gulf shows up even better when you run just a couple of storms in the group instead of the 15 in the animations.

I really like how the animations show consistent higher heights near greenland the entire 7 panels. Also a nice 50/50 sig shows up. It's nothing that we don't already know but it is a nice way of looking at things (and something to keep in mind when models are honking MA snow).

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Nice work Bob. The 11/11/87 storm is such a statistical annomaly. +AO, +NAO and climo were all against it. Yet we still got 11.5".

I saw that too and had to triple check the dates to make sure I didn't have a typo. It's the proverbial needle threading I suppose. We see the ingredients on the table often in craptastic patterns but they rarely pan out. Every once in a while though....

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This is nice to look at to help keep 2011 paranoia at bay. Much different look over AK and Russia this year. Not saying that I think everything looks great so far because we need some more help but at the very least see consistent high heights this year over AK and Russia is a massive improvement.

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Very nice work, Bob! What jumped out to me in the 10"+ animation is the Aleutian block is there at the beginning, but then a strong Aleutian/North Pac low develops, which serves to pump up the PNA and give us that west coast ridging as the storm gets going.

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This is nice to look at to help keep 2011 paranoia at bay. Much different look over AK and Russia this year. Not saying that I think everything looks great so far because we need some more help but at the very least see consistent high heights this year over AK and Russia is a massive improvement.

yeah, this year looks and "feels" nothing like last year

but the question remains: can we get the same seasonal snow/temp numbers by a different method?

if any location can do it, you know it's gunna' be the the MA! axesmiley.png

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I think the pattern is ho hum on the gfs. The pac changes a bit and spikes a really sharp h5 ridge off the ca coast but the main effect is a really strong and cold high pushes south into the intermountain west. Naturally there is ridging out in front so we're pretty boring along the ec.

No big deal really because that type of pattern is totally normal. Just not conducive for cold here.

Just speculating here but you always wonder how things evolve with that kind of ridging. Almost looks omega'ish. Split flow coming? STJ? lol

http://mag.ncep.noaa.gov/NCOMAGWEB/appcontroller?prevPage=Param&MainPage=indexℑ=&page=Param&cycle=11%2F19%2F2012+12UTC&rname=UPPER+AIR+PARMS&pname=500_vort_ht&pdesc=&model=GFS&area=NPAC&cat=MODEL+GUIDANCE&fcast=8+Day+Loop&areaDesc=North+Pacific+-+Western+US+Alaska+Western+Canada+Hawaii+North+Pacific+Ocean&prevArea=NPAC&currKey=region&returnToModel=&imageSize=M

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+SN

or +TSSN

I didn't look at the euro but the gfs wasn't cold for the east. Not warm or anything but it really pushed the cold airmass all the way down to almost mexico before starting to move it east.

Does the euro even show the big cold dump in the west or is it more aligned to drop out of the northern plains and move east?

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or +TSSN

I didn't look at the euro but the gfs wasn't cold for the east. Not warm or anything but it really pushed the cold airmass all the way down to almost mexico before starting to move it east.

Does the euro even show the big cold dump in the west or is it more aligned to drop out of the northern plains and move east?

Euro has massive lake cutter 186 onward. Hate those things.

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to me its a shame that you cant have models that, in general, have the same answer so that if you look at them , you dont have to question, ""is that right''. Just my point of view

Not sure that's possible. Seems to me to be a very complex process forecasting that far ahead. Reading from all of the pros and other really good posters on this forum has taught me two things. One, use ensembles in the long range, and two, there are large scale features that play a large part in sensible weather in the long range. Also, I've read that models have difficulty prior to pattern changes. I know the GFS seems to be a little back and forth in the long range lately, so I guess 7+ day forecasts have to be viewed cautiously especially if only looking at one model.

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to me its a shame that you cant have models that, in general, have the same answer so that if you look at them , you dont have to question, ""is that right''. Just my point of view

They shouldn't be consistent out there in the days 6 plus range. It's not the models it's the atmosphere....chaos rules

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They shouldn't be consistent out there in the days 6 plus range. It's not the models it's the atmosphere....chaos rules

Except for MA heat. They are ridiculously good at nailing that. lol

I do think models get a bad rap in the LR. It's just not possible yet. One tiny little difference at day 2 can = large swings down the road. I think models are pretty amazing when you think about something as complicated as the atmosphere can be simulated so well today. They are really really new compared to the science as a whole. It will be interesting to see how good they are in 20 years. In 50 years they will be controlling the atmosphere so they will always be right. LOL

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