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February Medium/Long Range Thread


stormtracker
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7 minutes ago, Ji said:

i almost wish mitch would stop posting it. I use the euro...thats it

I posted it because Psu asked me.

I won't post it unless it's good. But knowing that, don't stress to much not knowing what it shows when I don't.  Lol

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Before Ji starts a damn panic, I don't see any similarities to Boxing day

The issue there was the northern stream wave was out ahead of the STJ wave initially and coming in much further east...so it acted as a suppressive not amplifying factor initially.  Note the NS dropping down ahead of the STJ wave into the Midwest and OH valley here.

Box1.png.d10bfe9df837d45221a96a636f298c35.png

Then the NS dug too much, forcing the system way down off the SE coast and squashing anything trying to come up into the TN valley

box2.thumb.png.30badf4b4e59508c39575b03e74c60db.png

Lastly the NS cut off but it did so to our south, coming in at a bad trajectory, then elongated N-S with two vort maxes rotating around

box3.png.72a905df794107708a1bd7042eeeb41f.png

...which essentially slingshot the system up the coast but off the coast...and with the cutoff H5 right under us there was no way to get moisture transport to the west into the mid atlantic.  

 

box4.png.a0169664fee9962e79b1a59cd3af796c.png

If this fails it would have to be in a different way, because it's not that similar a progression on the guidance right now.  It would take monumental changes to get that kind of thing.  

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10 minutes ago, Paleocene said:

Maybe the Euro AI is only based off of data from 2017-2024 when it basically never snowed, so it can't handle a TUCKED FOLKS.  :weenie:

I know you're joking, but I believe it trained on selected years from the 40-year ERA5 reanalysis, which covered 1979 - 2018.  A reanalysis blends model output with observations.  The resolution of the training data set is 1 x 1 degrees, so relatively coarse. 

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4 minutes ago, Ralph Wiggum said:

@Scraff SBI was reading high so ran out to stock the fridge. If all else fails, the cellar is loaded with stouts and imperial stouts. And if the storm falls apart, well, I won't remember it anyway

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Im the same way, but with weed instead lol. I'm actually making ice water bubble hash right now. Then I take the hash and make different edibles. I'm making some strong ones for the next few days lol

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4 minutes ago, dailylurker said:

Im the same way, but with weed instead lol. I'm actually making ice water bubble hash right now. Then I take the hash and make different edibles. I'm making some strong ones for the next few days lol

I don't drink or do weed, but my humidor was topped up this week also. 

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15 minutes ago, Ji said:

lol--i was talking more about the Dec 30,2000 storm. Euro had us 1-2 feet 5 days before storm

Shit wrong storm...yay now we've brought up all 3 of our biggest busts of the last 30 years...awesome.  

But that storm has even less in common IMO.  It was purely NS miller b, not hybrid.  From 5 days out the models were wrong because they thought the STJ wave would be out in front and phase and there would be a hybrid system.  Once they latched onto the idea it would be a NS only miller b it became more iffy but some runs still showed a hit because back then they liked to tease us with miller b's when in reality they almost NEVER develop fast enough, that one Feb 1996 one being the only exception I can ever remember where a pure NS miller b bombed in time to get the DC area into heavy snow.  

What are the odds this becomes like that?  Not much imo.  First of all the southern stream is way out ahead of the NS on this one so there is no mechanism to totally squash it.  If the NS squashes it...there wouldn't be a storm because there is no strong NS SW to work with here.  Also, models are better at day 5 then they were at day 3 back then.  We don't see major errors on significant systems like that as often.  

Anything is "possible" but I don't see many similarities to this setup. 

Now can we stop bringing up every horrible fail we've had.  

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1 minute ago, MillvilleWx said:

Hey guys! Been busy...I miss anything? 

Just deciding whether we get a SECS, a MECS, a HECS, or a BECS next week.  And what the definition of those are.  PSU is in.  Stormtracker is trying to encourage the masses not to cliff dive if one run here or there isn't perfect.  

Oh, and Ravensrule told us about his ED.

I think that's most of it.

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13 minutes ago, aldie 22 said:

Dang CWG just showed the euro run on FB. Seems a bit early to hype up the masses....I thought that was Jay's Wintry Mix's job

Jay rips off the mets here to post on this page.  You all are making him advertising money.

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