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February storm threat discussion


Ellinwood

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GFS has the weekend storm, but it's going to be well OTS. Need the eastern trough and western ridge axes to be farther west to get a coastal.

Yea, I was looking at that. There no reason to discount either solution at this point (i do have a knack for stating the obvious...). There some ridging poking into the east side of greenland. Not ideal or anything but it's still there.

Finally getting an ec trough with a bit of a -nao and the storm is shunted (at least on this run anyway). Should be an interesting week nonetheless.

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the gfs is pretty craptacular till the superbomb that goes to our west. maybe we'll get a dusting on the backend.

Yeah, we can ask dtk to be sure, but I think that must be part of the GFS programming. Offer a snowporn run at 6z and then a dousing of coldwater at 12z.

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I'm still watching wednesday...I don't care if the NAM has the main shield of precip over Quebec...The Euro did not and it was stronger and wetter....there are temp and timing issues of course, but if I am not being IMBY this could be something for the same folks who did well this weekend

I'll be looking at the 12Z euro. For my back yard, I think it's done.

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Whether the GGEM ends up being right or not, it shows the kind of setup we need to see to get such a chance at a storm. The western ridge axis is farther west than the GFS, pretty near the Boise, ID, rule-of-thumb. In concert, the eastern trough axis is not as far west and the trough is nowhere near as deep as on the GFS. The GFS' deeper trough surpresses the storm and fast flow shoves it OTS.

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way too early to punt on the weekend deal. The way the models, especially GFS, have been flipping around, I'd wait till at least 0z Friday.

agree...that doesnt mean I think a storm is a 50-50 proposition....It is well less than that but the euro is as close as it has been....the models have been awful at that range...model output shouldnt encourage or discourage us....Other things should, but not models at this range

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agree...that doesnt mean I think a storm is a 50-50 proposition....It is well less than that but the euro is as close as it has been....the models have been awful at that range...model output shouldnt encourage or discourage us....Other things should, but not models at this range

the setup is iffy and has been for a while. we keep getting better looks at range that degrade as we close in. no one here would ever punt anything until it's 150% clear it won't happen. what else encourages or discourages? water vapor loops?

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I got sucked in and wrote a CWG piece saying I thought we'd have a two week period with colder than normal temps and a better chance at getting snow than we've had. Now it looks like a one week period that probably will end up being dry. The euro ens mean 240 certainly does not look good. The gefs isn't as bad but has a positive nao.

these are the same low resolution ensembles that gave me 0.75" of QPF 24 hours out from an event that gave me 0.08"....I'm not too concerned what they show at day 10.....that doesnt mean I am bullish...this winter is all swimming upstream...your pessimism regarding any 3"+ event has been entirely warranted and dead on

This is more anecdotal, but my guess is other than maybe some random 0.2" snowshower event that coats a trashcan top, we have either 1 or 2 legit events before winter ends.....at some point one of these events has to pan out or else we get to march 15th with no events....but it is keeping me sane if any one individual event doesnt pan out....the event(s) could be 2/20 - 3/10 so I am not that concerned about the next week though I would be disheartened....I also like the idea of a big mid-late March event but think that might be the kind to give Trixie 6" and me 0.25"

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these are the same low resolution ensembles that gave me 0.75" of QPF 24 hours out from an event that gave me 0.08"....I'm not too concerned what they show at day 10.....that doesnt mean I am bullish...this winter is all swimming upstream...your pessimism regarding any 3"+ event has been entirely warranted and dead on

This is more anecdotal, but my guess is other than maybe some random 0.2" snowshower event that coats a trashcan top, we have either 1 or 2 legit events before winter ends.....at some point one of these events has to pan out or else we get to march 15th with no events....but it is keeping me sane if any one individual event doesnt pan out....the event(s) could be 2/20 - 3/10 so I am not that concerned about the next week though I would be disheartened....I also like the idea of a big mid-late March event but think that might be the kind to give Trixie 6" and me 0.25"

I know Don is non-commital for good reason about March at this point-- he still keeps on slipping in 3 years into his posts: 56, 76, 99.

3/76 is exactly what you're talking about that I hope doesn't happen.

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the setup is iffy and has been for a while. we keep getting better looks at range that degrade as we close in. no one here would ever punt anything until it's 150% clear it won't happen. what else encourages or discourages? water vapor loops?

I'd say any signs other than models...persistence, winter so far, nina, scream against a storm and maybe climo leans slightly toward an event in the next 10 days....I don't expect the models to get a phase right at day 6....that doesn't mean it is 50-50 or a coin toss...it is not imo, but I don't need to see the models pasting us with QPF at 144 hours to buy a storm....even if say the GFS gave us an 1" of frozen at day 6-7, we wouldnt buy it....most winters, but especially this one, you will usually be right betting against a storm....doesn't mean most of us really know what's going to happen next weekend....

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