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January Medium/Long Range: A snowy January ahead?


mappy
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1 minute ago, WxUSAF said:

So 0z euro went back to about where it was at 12z? I think a slight north shift close to game time is quite possible, but not one that’s going to make this a congrats NYC/SNE event. More like congrats @psuhoffman @mappy and @mitchnick. Which we all knew was probably coming anyway. And I think some of the banding structure, as @MillvilleWx alluded to, might give the impression of a north shift when in reality it’s just the in-storm dynamics creating a non uniform snow swath. Anyway…nice consensus. Going to be thread time after 12z runs.

Ya idk why anyone thought it was going to NY. Always weenie panic over one run. I am glad it shifted south a little, gives me more room for the trend back north again at the end. I would be in that congrats crowd you just mentioned. 

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5 minutes ago, WxUSAF said:

So 0z euro went back to about where it was at 12z? I think a slight north shift close to game time is quite possible, but not one that’s going to make this a congrats NYC/SNE event. More like congrats @psuhoffman @mappy and @mitchnick. Which we all knew was probably coming anyway. And I think some of the banding structure, as @MillvilleWx alluded to, might give the impression of a north shift when in reality it’s just the in-storm dynamics creating a non uniform snow swath. Anyway…nice consensus. Going to be thread time after 12z runs.

I dunno. 06z Euro is south and jackpots central MD/DC/NOVA. Less than a half inch precip up my way. 

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2 minutes ago, TSSN+ said:

Ya idk why anyone thought it was going to NY. Always weenie panic over one run. I am glad it shifted south a little, gives me more room for the trend back north again at the end. I would be in that congrats crowd you just mentioned. 

The 70 & n to M/D corridor is a good place to be right now. PSU probably jackpots if you didn't move to Hanover, but given your snow curse, we'll have to look for a new jackpot zone. 

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7 minutes ago, WxUSAF said:

So 0z euro went back to about where it was at 12z? I think a slight north shift close to game time is quite possible, but not one that’s going to make this a congrats NYC/SNE event. More like congrats @psuhoffman @mappy and @mitchnick. Which we all knew was probably coming anyway. And I think some of the banding structure, as @MillvilleWx alluded to, might give the impression of a north shift when in reality it’s just the in-storm dynamics creating a non uniform snow swath. Anyway…nice consensus. Going to be thread time after 12z runs.

Well, I did as you instructed.  

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1 minute ago, stormtracker said:

lol..look at the H5 maps for hour 234 for a prime example.  So much going on.

we might have to move our new window to Jan 14-15. I think Jan 10-11 is probably toast but we probably wont care that much with a foot on the ground lol

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8 minutes ago, stormtracker said:

lol..look at the H5 maps for hour 234 for a prime example.  So much going on.

something has to happen. THere is unlimited vorts. With the NAO blocking there should be a backup and allow for consolidation at some point. We are going to have to be patient i guess

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3 minutes ago, NorthArlington101 said:

Gosh that GFS run was on fire at the end. Gonna be fun times after a break following Monday’s MECS. 

Yea, that looked like a Miller A at the end.  All we do now is snow.

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1 hour ago, stormtracker said:

lol..look at the H5 maps for hour 234 for a prime example.  So much going on.

Re: 234...Slow the southern vort down a little bit and the northern one could drop in behind it. That pulls things a bit north and it all phases with that lobe dropping in from the northeast.

Simple, right?

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1 hour ago, mattie g said:

Re: 234...Slow the southern vort down a little bit and the northern one could drop in behind it. That pulls things a bit north and it all phases with that lobe dropping in from the northeast.

Simple, right?

Of course.  Most of our storms are just simple and straightforward.   

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This is slightly off topic and a question for red taggers.  But what are the statistical error ranges on projected snowfall or qpf totals? Are there any comprehensible stats that describe that somewhere? I'm wondering when I hear people mention things like "oh I lost .2 qpf on the latest run." What's the error range on .75 expected qpf at 120 hours out? Probability bounds? Confidence intervals?

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1 minute ago, Paleocene said:

This is slightly off topic and a question for red taggers.  But what are the statistical error ranges on projected snowfall or qpf totals? Are there any comprehensible stats that describe that somewhere? I'm wondering when I hear people mention things like "oh I lost .2 qpf on the latest run." What's the error range on .75 expected qpf at 120 hours out? Probability bounds? Confidence intervals?

This is a good question for @dtk or @high risk

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