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Potential 12/8 Event Discussion Part I


earthlight

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As Will said, I guess it's cool that there's something to track. But this system has very little chance of bringing snow to anybody in this area that doesn't have good elevation.

if Zucker was here he would be telling us his over 300 feet would give him all snow. Don't miss those days.

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Im waiting for the next threat after this.....dont see anything here but the potential for cold behind the rain

This pattern looks like a relatively quiet one compared to what we've seen before, there's not much storms showing up on the GFS in the medium-long range. The only interesting scenario was a few 18z GEFS members showing a storm for Saturday, but it's only a few GEFS members from 1 run in the medium range, not too reliable.

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Yup, you got me. I'm definitely in denial. These models are clearly showing snow for our area. The pattern is great, too.

Sorry had to work the closing shift so now I will address this. Can you point to me where i said specifically NYC would get snow?

What i said and have been saying all along is that this would be the next potential shot at snow for parts of the region. Whether that is a rain changing to snow or all snow/sleet is up in the air. I also have been forecasting for the best chances to be North and W of I-95 aka N & W of the big cities.

I also stated that Mt Holly also agrees with my thinking when I have been accused of wishcasting...

I also mentioned that the ensemble means of the ECM..though faster then the GFS are very similar to what the GFS means have been...

Just because the pattern is bad (where so far in bad patterns we have had a Historical East Coast snowstorm) does not mean that snow can not occur..

You do not need a - NAO or a - AO to get snowstorms..that is a misconception and you do not need those to get colder weather either...

Jan 1994 was a severely positive NAO and a positive AO and some of the coldest air one could ever see..and if memory serves me correctly snow to go along with it...

Lets see where the 00z suite goes with this...

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You do not need a - NAO or a - AO to get snowstorms..that is a misconception and you do not need those to get colder weather either...

Jan 1994 was a severely positive NAO and a positive AO and some of the coldest air one could ever see..and if memory serves me correctly snow to go along with it...

Yes but you are working against an extremely stacked deck to get a snow event with a positive NAO...and 1994 was NOT a positive AO...it was a positive NAO, but a -AO with a monster block north of AK. This is not the pattern currently....to compare this pattern to 1994 would be like warm monger comparing the Dec 26, 2010 pattern to Dewc 1996 because both had a -NAO...or Dec 2001 having a -NAO...those didn't work out too well there.

I don't think anybody is saying this "threat" cannot happen, but to poo-poo on any ideas that it can't is irresponsible IMHO because there is a lot more evidence it cannot happne vs it can, and that is not talking the norm when it is mostly true too. This is talking in a hostile pattern....hopefully everyone in I-95 and just NW gets a nice 3-6" snowfall from this, but but odds are way against it.

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Yes but you are working against an extremely stacked deck to get a snow event with a positive NAO...and 1994 was NOT a positive AO...it was a positive NAO, but a -AO with a monster block north of AK. This is not the pattern currently....to compare this pattern to 1994 would be like warm monger comparing the Dec 26, 2010 pattern to Dewc 1996 because both had a -NAO...or Dec 2001 having a -NAO...those didn't work out too well there.

I don't think anybody is saying this "threat" cannot happen, but to poo-poo on any ideas that it can't is irresponsible IMHO because there is a lot more evidence it cannot happne vs it can, and that is not talking the norm when it is mostly true too. This is talking in a hostile pattern....hopefully everyone in I-95 and just NW gets a nice 3-6" snowfall from this, but but odds are way against it.

This is the second time I have been told 1994 (Jan) did not have a positive AO..

I thought blue represented negative?

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This is the second time I have been told 1994 (Jan) did not have a positive AO..

I thought blue represented negative?

The CPC numbers have is negative

http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/monthly.ao.index.b50.current.ascii.table

...and at any rate, you should not get married to actual numbers, you should be looking at the pattern if you want to gauge the snow and cold threats...this is Jan 1994:

compday6618911310333720.gif

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The CPC numbers have is negative

http://www.cpc.ncep....ent.ascii.table

...and at any rate, you should not get married to actual numbers, you should be looking at the pattern if you want to gauge the snow and cold threats...this is Jan 1994:

Earthlight and I have been making this point for months, look at the 500mb charts, not the index charts.

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Earthlight and I have been making this point for months, look at the 500mb charts, not the index charts.

The index numbers are nice for a crude assessment when we are looking at patterns...but looking at the actual pattern is ALWAYS better than than looking at the numbers...the numbers only help us when we try to sort out years at a time.

But each number can have a different pattern...hence Dec 1996 and Dec 2001 having a -NAO not doing diddly poo (to phrase Jim Mora) for most of the East Coast versus other years which were awesome and cold.

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