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Early December Pattern Discussion


Baroclinic Zone

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The reason lakes flash freeze like that too can be attributed to the fact that in order for a body of water to freeze, the whole volume has to cool to 4*C. Even if it's -20 out, the lake will not freeze quickly because the whole thing needs to reach that critical temp. Once those temps mix in, the top layer freezes and it works down from there. Maybe it was sitting on that threshold and finally broke allowing freezing to take place.

The magic 39.
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EC ensembles sort of look like the op. Roll over ridge into nw Canada. SW US trough. Split flow big time with a trough in the northeast at d10. Pretty far out in time though.

So Euro and its ensembles are better. It's 2 days prior to 12/10.

What does d11-15 look like?

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I remember they did this a couple of weeks ago, so we must wait and see if they continue this over the next few days.

Maybe 2 weeks ago they were jumping the gun as models are want to do...hopefully this one is real...

It appears to be a growing signal from the reports of the past few days.

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Give us weeks 3 and 4 please.

The se ridge builds through weeks 3 and 4. 850 temps anomaly are +1 week 3 (not bad) to +3 at week 4 (bad).

The one thing that is semi ok, is the ridge in the NPAC which may have some amplification, but the se ridge is on HGH on the weeklies. Hope they are wrong.

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The se ridge builds through weeks 3 and 4. 850 temps anomaly are +1 week 3 (not bad) to +3 at week 4 (bad).

The one thing that is semi ok, is the ridge in the NPAC which may have some amplification, but the se ridge is on HGH on the weeklies. Hope they are wrong.

Well they won't entirely be right. Let's hope the NPAC ridge is bigger and the SE ridge is smaller. It sounds like it wants to build a negative EPO which can't hurt.

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The se ridge builds through weeks 3 and 4. 850 temps anomaly are +1 week 3 (not bad) to +3 at week 4 (bad).

The one thing that is semi ok, is the ridge in the NPAC which may have some amplification, but the se ridge is on HGH on the weeklies. Hope they are wrong.

This is, though, we are getting to the point in the calendar year where it can snow in SNE with +1 departures.

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The se ridge builds through weeks 3 and 4. 850 temps anomaly are +1 week 3 (not bad) to +3 at week 4 (bad).

The one thing that is semi ok, is the ridge in the NPAC which may have some amplification, but the se ridge is on HGH on the weeklies. Hope they are wrong.

Also, even with those anomalies with the EPO perhaps we get a gradient pattern and the H85 is not particularyl indicative of LL cold.

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Also, even with those anomalies with the EPO perhaps we get a gradient pattern and the H85 is not particularyl indicative of LL cold.

True, I thought about that..but +3 for a week avg is pretty bad. That's really high.

As usual, week 3 and 4 can be out to lunch, but they haven't been all that bad overall. Hopefully that ridge depicted is big enough to help seep some cold in.

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True, I thought about that..but +3 for a week avg is pretty bad. That's really high.

As usual, week 3 and 4 can be out to lunch, but they haven't been all that bad overall. Hopefully that ridge depicted is big enough to help seep some cold in.

Well it just snowed in a week that was anywheres from +6to+13 region wide, so anything can happen and the euro weeklies BLOW.

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True, I thought about that..but +3 for a week avg is pretty bad. That's really high.

As usual, week 3 and 4 can be out to lunch, but they haven't been all that bad overall. Hopefully that ridge depicted is big enough to help seep some cold in.

As bad as it is just North of us is cold, give me -EPO or give me death

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