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Jan 11-12 Model/Forecasting Discussion


Ji

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the low to the west is still the primary circulation, the h5 has to catch up faster and energize the coastal and let moisture advection begin before it is further north and too late for our area. Its a race against time. The inverted trough will be slowly sliding north as the h5 energy rides east along it. If the h5 can catch it before it moves north of us we are ok. If not....congrats NYC again.

when is the last time "timing" worked out well for us in a La Nina. I think we get 2-5 inches and there is better potential towards the end of next week

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the mass panic the evening of the Feb 10th storm was funny as the radar was dried up and we waited for the upper level energy to bomb the coastal and get the deform band going right on top of us.

i wasnt panicing. I had 34 inches on the ground already

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when is the last time "timing" worked out well for us in a La Nina. I think we get 2-5 inches and there is better potential towards the end of next week

the storm the end of next week is a quick thump snow to ice scenario, trough axis is way too far west but cold is locked in. Its definitely not the setup for a MECS or anything

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the storm the end of next week is a quick thump snow to ice scenario, trough axis is way too far east but cold is locked in. Its definitely not the setup for a MECS or anything

Fortunately the models are dead on with the setup 8-9 days out and won't change.

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I apologize, a low over Michigan with a trailing cold front is a perfect setup for a HECS here.

Do you look at anything other then the pretty colors on the models Ji?????

Did I say HECS? I just said it looks more exciting...heavy snow to ice to arctic air coming through. Not every storm that i like has to be the blizzard of 96

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Perhaps a little off-topic from the system next week, but I didn't see a whole lot of discussion on this. That is, has anyone else noticed that at least the GFS seems to have backed away from its previously and consistently advertised major Arctic outbreak (and remaining fairly cold through its duration, well into the second half of January)? To the point that there was talk about this being one of the colder Januaries that we've seen in awhile. In recent days, however, at least a few cycles of that model have been less emphatic. Yes, there is a period of sharp cold sometime around or just after next weekend, but the GFS has been shunting it more east (rather than plunging it south with a deep almost N-S trough as it showed for some time), and then whatever cold air comes in lifts out a whole lot faster and the flow relaxes quite a bit. Not to the point of being a torch, but certainly not all that great looking if you want winter weather. I think the GFS ensemble means are more in line with this outbreak still occurring, but I'd be interested in other thoughts on this. Just more uncertainty or a trend here?

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Nah, as Wes said they were locked-in. Almost shockingly so. They busted big. In this case, they are backed up by the Euro ensembles, however. The GFS ensembles mostly agree as well.

Yeah I guess you're right. My memory of these failures is about as good as my untrained eye laugh.gif

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Perhaps a little off-topic from the system next week, but I didn't see a whole lot of discussion on this. That is, has anyone else noticed that at least the GFS seems to have backed away from its previously and consistently advertised major Arctic outbreak (and remaining fairly cold through its duration, well into the second half of January)? To the point that there was talk about this being one of the colder Januaries that we've seen in awhile. In recent days, however, at least a few cycles of that model have been less emphatic. Yes, there is a period of sharp cold sometime around or just after next weekend, but the GFS has been shunting it more east (rather than plunging it south with a deep almost N-S trough as it showed for some time), and then whatever cold air lifts out a whole lot faster and the flow relaxes quite a bit. Not to the point of being a torch, but certainly not all that great looking if you want winter weather. I think the GFS ensemble means are more in line with this outbreak still occurring, but I'd be interested in other thoughts on this. Just more uncertainty or a trend here?

I hope the cold backs off. We need a relaxation to increase our snow chances, I think.

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I hope the cold backs off. We need a relaxation to increase our snow chances, I think.

Well, if you take some of those runs of the GFS at face value, you won't see any real snow chances when whatever cold air we get backs off. Not saying they're right (we are talking 10 days out or so), but some of those cycles sure don't seem to indicate good snow chances in the medium-longer range.

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