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March 2024 disco/obs


Torch Tiger
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1 minute ago, 40/70 Benchmark said:

March 2012 was a monthly analog of mine, albeit not the primary one...1973 was. The truth is that I needed the colder shift to have a prayer of verifying and my range of +2 to +4 will probably still end up too cool.

I'll do the monthly recap this weekend...should be rather short and (not) sweet.

I'm at +4 here.

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3 minutes ago, 40/70 Benchmark said:

Hopefully a nice tropical season en route...would love to have a tent city in Tolland by October 1.

I thought climate change meant we have the climo of DC. This is like fucking Vancouver. Depressing AF.

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24 minutes ago, 40/70 Benchmark said:

March 2012 was a monthly analog of mine, albeit not the primary one...1973 was. The truth is that I needed the colder shift to have a prayer of verifying and my range of +2 to +4 will probably still end up too cool.

I'll do the monthly recap this weekend...should be rather short and (not) sweet.

March 10 is a much better fit. It's not just about temps. Example ORH where month Ave is closer to 10 and precip as well. 

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4 minutes ago, ineedsnow said:

Lol beefed up and came west at 9z .. 

Still needs a lot of work....you want to see legit rates in this thermal profile. There's a scenario where the low pressure develops along the front and gives us decent precip on Friday in the CCB, but it remains mostly rain because it steady light/moderate precip and not good rates.

06z NAM kind of showed this...decent precip in the CCB but mostly rain with just some sloppy snow over the hills...maybe an inch or two in a scenario like that but also could just be white rain.

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24 minutes ago, Ginx snewx said:

Just to be accurate it snows for 44 hrs on that run why post 24

I’m comparing 24hr maps valid the same time to show they don’t match up. Idc if it snows for 300 hours. It’s all clown trash. 

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It's close ( all hating and despising aside...) re April 3rd-ish

Henry's chart above is remarkably consistent, as well ..shared with only irrelevant differences between the EPS/GEFS/GEPS ensemble means. In all -->  a deep coupled response to that western limb -NAO you see over the D. Straight, should evolve nearby our lat/lon - that is the teleconnector incarnate.

That's just a 101 interpretation that cannot really be argued.

The problems with it are obviously A... the lateness and climate but excusing  that obviousness for moment ( we've have blizzards in early April before, anyway - ) ...the heights in the west and how they transiently balance against the heights between the GOM and off the SE U.S. coast, are preventative.

The GEFs mean for dailies is actually a very good fit on the 06z, taking a strong primary up the ST Seaway to about Watertown NY ..then, forcing a secondary E of PWM ... because it compromises the -NAO forcing a storm S, while also negotiating those heigher heights underneath/foundation of all that scaffolding down in the deep S/SE.  

It can change... a little more western ridging would help. But, I also suspect the entire 35N band around the entire hemisphere/planet on both sides of the Equator, being some 3 to 7 dm higher than they were 50 years ago ... would continue to impose resistance even if those mid latitude features became better aligned.  The flow would compress, not "yield" in that sense... and compression speeds up the flow - it's basically just that the lower latitudes are destructively interfering.   Complex... 

For now, we need the Pac --> N/A flow structure not be going into a -PNA mode, while these other inhibitors are going on, before we can be more confident in a finale bomb.

I will say though that the 2nd week of April, the seasonal 'flash' is now showing up on the guidance across the board.  It's probable any 1st week system would be the season's mortality gasp in the models.

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10 minutes ago, ORH_wxman said:

Well the NAM is one way to get a blue bomb.

I actually don't have problem with it.  Blues have odd behaviors - difficult to pin point that sort of thing. It's probably more of an homage to general possibility ...less 'where' exactly that happens. In fact, I can imagine the cackles and ridicule over the NAM this and that ... all the while missing that point.

We're still technically reeling off that pretty crazy late season -EPO last week. It's modulated(ing) positive, but the loading takes time to extinguish - at this time of year, these indexes sometimes reflect more so in the mid level thermal complexion. If we look at that 850s mb, it doens't appear like there's warm problem to this thing being a kind of red flag -

Although heh... anyone that thinks this week's been warm at the surface is probably trying to sell snow to Eskimos.  

I'm just saying ... that's why spring blue bombs happen. 

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