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January Pattern and Storm Discussion


Cold Rain

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You are correct sir. As you can see at at 114, it never makes the turn and heads OTS...

06zgfs850mbTSLPp06_county114.gif

Well 6z squashed the heck out of our southern energy and just had it dry for us next week basically. What a difference a day of runs make. On a good note the 6z NAM looks very close to something big @84.

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If the SE ridge weren't there, this would be a slam dunk. But it's there, it's been modeled to be there for a few days now, and failure of any wave swinging out of its positive tilt is a direct effect from this. The s/w in the STJ must be much stronger to counteract this feature.. or all of the models are wrong with regard to the strength of the SE ridge.

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Agree, but you can't deny that they are all starting to show some agreement. Positive tilt, shearing out, losing the 1030 plus HP to the north.

Yes, that has been the most consistent solution, even though I don't think any of us want that.

It would be nice to see the 12z runs come back to yesterday's general idea, though I don't think that is likely. There is a LOT in the flow though so anything is possible.

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If the SE ridge weren't there, this would be a slam dunk. But it's there, it's been modeled to be there for a few days now, and failure of any wave swinging out of its positive tilt is a direct effect from this. The s/w in the STJ must be much stronger to counteract this feature.. or all of the models are wrong with regard to the strength of the SE ridge.

Several 6z GFS members had more precip and definitely a CAD signature, not sure I am really hoping for an ice storm though. But yes, let's hope the SE ridge is being overplayed...by every model.

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It has backed off of the extreme cold that was painted but I sure could deal with what it is showing. Looks normal to slightly below ...

When looking at the CFS weeklies it loos like it has Jan 5-9 very cold from the NE down to NC and than Jan 7-13 cool in the SE, which leads to thinking about Jan 10th as a turning point to warm. Than weeks 3 and 4 are warm. It does keep the SE wet the entire run, so it looks like atleast this will improve our drought conditions.

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Several 6z GFS members had more precip and definitely a CAD signature, not sure I am really hoping for an ice storm though. But yes, let's hope the SE ridge is being overplayed...by every model.

I was about to post the same thing when I just looked at the 6z ensembles. A lot more moisture showing up on the ensembles further north. I think we are just at the period where the models often "lose" the storm only to bring it back in a similar fashion.

I'm more worried that the precip will be here but the temps may not cool enough. Although, at this point I will take a good moderate sleet, frz rain event as long as the power stays on.

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HAH! That's why we need to cash in this week with something, anything frozen :-)

Yep, this is probably one of the best shots we will have this winter. I would hate to see it go to waste. The energy diving down just off the coast of California needs to be stronger to survive the meat grinder and the SE ridge needs to move on out quicker than modeled. The high is not all that strong and I can see the moisture being farther north than currently shown. Question is......will it be cold enough now that the models have backed off of the cold great-lakes high that was forecasted a couple of days ago. A lot of things need to fall in place. Stay positive.

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Yep, this is probably one of the best shots we will have this winter. I would hate to see it go to waste. The energy diving down just off the coast of California needs to be stronger to survive the meat grinder and the SE ridge needs to move on out quicker than modeled. The high is not all that strong and I can see the moisture being farther north than currently shown. Question is......will it be cold enough now that the models have backed off of the cold great-lakes high that was forecasted a couple of days ago. A lot of things need to fall in place. Stay positive.

It's only out to 66 but this run might be better. Looks like that energy off the west coast is a little stronger and of course it's always pointless to guess but there may be more separation with the northern stream on this run. Like Andy said though you might as well be throwing darts at a dart board with random outcomes.

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I was hoping that vort out west in Mexico could hold together but @93 it's loosing steam fast. There is some weak energy in CO heading south @96 perhaps there are still some fun and games left, but I doubt it.

It's just going to be a cold front, bummer, the fact the models are going in the wrong direction isn't good, about time to put a nail in the coffin if the 12z Euro doesn't show some improvement, really any improvement, this GFS run was awful. I know we still have 4 days left but the changes we need to occur are happening at day 3.

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Past few runs of the CFS have really backed off on a cold January...the anomalies still show cooler than normal for January though....

Anomalies...http://www.cpc.ncep.noaa.gov/products/people/mchen/CFSv2FCST/monthly/images/CFSv2.NaT2m.20121230.201301.gif

summaryCFSv2.NaT2mProb.201301.gif

I continue to watch Alaska. If it gets warmer than normal there, that is a better sign for us. In late November, the CFS2 was projecting a cold December in Alaska which correlates pretty well to warmth over the SE. The fact it, and most models, are now projecting relative warmth there seems to hint that the end of the month could get cold here or return to normal. Biggest problem is "wasting" a neg NAO if you can call it that.

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I continue to watch Alaska. If it gets warmer than normal there, that is a better sign for us. In late November, the CFS2 was projecting a cold December in Alaska which correlates pretty well to warmth over the SE. The fact it, and most models, are now projecting relative warmth there seems to hint that the end of the month could get cold here or return to normal. Biggest problem is "wasting" a neg NAO if you can call it that.

Check out Fairbanks' departures for December - unreal. That, according to the models, is about to change. That should at least give us a chance as Wow was alluding to. However, it has been my experience that when Alaska has extreme cold it is pretty much the opposite here in TN. So, getting that anomaly out of the way is at least a step. By no means is it a guarantee it gets colder...but like I said, it's a start.

post-769-0-28942200-1356887162_thumb.jpg

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