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Is we back? February discussion thread


mahk_webstah
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It's almost like the GFS is dropping the W into a -EPO tendency in the first week, and then walking away

Meanwhile, the index interpretation is offers uncertainy.  That N. Pac thing from late Novie through Dec is back in its haunt,

image.png.db5962f4d354613c809aab211067d06e.png

but it's not clear whether it will mean same or similar or somehow idiosyncratically different over the eastern N/A continent.   This looks like a cold stormy pattern at a glance but that ridge up there is sort of in the hybrid WPO/EPO space which complicates matters, particularly if it is resonant and not moving.

 

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1 hour ago, Typhoon Tip said:

Under the radar aspect about that warm up in January.

I argue it was not "thermodynamic" in character - in other words, dry air warm up.  It's not the same beast as other.

The measly 3" of white stone snow pack was incredibly resistant.  We really only went down to bare ground in this part of the interior ... not until the last day or two of that span.  Otherwise, a lot of 46 F highs over that apparently impervious to melt.   

It matters meteorologically because warmth in the atmosphere is both kinetic and also water vapor. But a dryer air mass will withstand just temperature more so than when it is accompanied by a DP that is also above freezing.     

I cleared an untouched area to access a trailer, and it was pure powder top to bottom. 

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7 minutes ago, metagraphica said:

A balmy 36 IMBY.  I think the 'tenor' of this winter opera has sung his last notes. The fat lady is in the back warming up.

17 and 18 should have said that with the 70’s and 80 degree temps, and then winter roared back.  Hard to say this on 2/10 in SNE. 

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43 minutes ago, metagraphica said:

A balmy 36 IMBY.  I think the 'tenor' of this winter opera has sung his last notes. The fat lady is in the back warming up.

I wouldn't go outside.  Latest Dept of Fish & Game geotracking map has gray wolf collar #45B on the move towards Salem, CT.

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2 minutes ago, ma blizzard said:

so much for the warmup next week on that OP Euro run 

Euro has been significantly blockier in the longer range than the GFS…which is producing wildly different sensible wx for us on those runs. GFS tries to torch us to 60F while euro has multiple winter wx threats.  

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I think we're definitely going to be introducing PAC air into much of the country but that doesn't mean we can't or won't snow nor does it mean we can get colder weather at times. The upcoming pattern though looks a bit volatile and active so there is that. I don't want to say we're looking at a gradient pattern but something along those lines is definitely possible. It seems there is higher confidence in how the Pacific evolves (though guidance has struggled with this) with lower confidence in the evolution of the Arctic which may be tied into the models toying around with SSW potential. 

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6 minutes ago, ORH_wxman said:

Euro has been significantly blockier in the longer range than the GFS…which is producing wildly different sensible wx for us on those runs. GFS tries to torch us to 60F while euro has multiple winter wx threats.  

The EURO sends the MJO more onto the COD, whereas other guidance enters the MC....going to do a write up soon about the favored option.

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