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E PA/NJ/DE Winter 2024/25 Obs/Discussion


JTA66
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4 hours ago, Ralph Wiggum said:

So, with next week in the dumpster, how we looking for our big grand finale major drool-worthy loaded powder keg pattern after the 20th? We still good?

I think it still looks promising on the ensembles.  -AO and -NAO with a potential 50/50 locked in and the cold underneath.  Nice building western ridge on the EPS, less so on GEFS.  The setup hasn't changed much, I don't think.

Clearly OP model runs aren't trustworthy even to mid-range lead times.  Next week is volatile.  Hopefully we don't go dry again in the good base, but I guess that's the risk in a Nina.

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7 hours ago, RedSky said:

GFS is north but needed a south trend, then south when we needed a north trend and north when we needed a south trend lol

Am looking out the window right now to the east and see your namesake in all its glory!

Made it up to 44 yesterday and am currently at my low of 26 for today with dp 12. 

Some stuff outta the 6z GFS at the end of the run:lol:.

floop-6z-gfs-2025020806.prateptype_cat-imp.conus-02082025.gif

floop-gfs-6z-snow-2025020806.sn10_acc-imp.us_ne-02082025.gif

floop-gfs-6z-snow-kuchera-2025020806.snku_acc-imp.us_ne-02082025.gif

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1 hour ago, JTA66 said:

We do “end of the run” well. :P

It is the epic period so maybe it has legs. Look, I don't doubt the indices tank in our favor. But we've seen epic patterns quite a bit recently tbh, more than usual I would even venture to say. But I am more into track actual legit events in these patterns. And I get it, get the pattern in place first. OK. But I guess it's just frustration that these good telleconnections just haven't produced a whole hell of alot over the past decade. Either we are just in a decadal rut or @psuhoffman from the MidAtl will need to dig into the deeper chapters in his log. 

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1 hour ago, Hurricane Agnes said:

Am looking out the window right now to the east and see your namesake in all its glory!

Made it up to 44 yesterday and am currently at my low of 26 for today with dp 12. 

Some stuff outta the 6z GFS at the end of the run:lol:.

floop-6z-gfs-2025020806.prateptype_cat-imp.conus-02082025.gif

floop-gfs-6z-snow-2025020806.sn10_acc-imp.us_ne-02082025.gif

floop-gfs-6z-snow-kuchera-2025020806.snku_acc-imp.us_ne-02082025.gif

The giant philly snow hole makes this glorious weenie map feel strangely sad. 

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12 minutes ago, penndotguy said:

Not one of these 300+hr fantasy storms have been close to reality over the past few years, until one gives us a fraction of the fantasy totals I’m not buying any of them even if the pattern looks great. Let’s get these inside 5 days then maybe we believe. 

Inside five days, that’s when it’s worth while looking. Plus after the 15th the MJO will be in phase 8 and hopefully beat down the SER

 

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2 hours ago, Hurricane Agnes said:

Am looking out the window right now to the east and see your namesake in all its glory!

Made it up to 44 yesterday and am currently at my low of 26 for today with dp 12. 

Some stuff outta the 6z GFS at the end of the run:lol:.

floop-6z-gfs-2025020806.prateptype_cat-imp.conus-02082025.gif

floop-gfs-6z-snow-2025020806.sn10_acc-imp.us_ne-02082025.gif

floop-gfs-6z-snow-kuchera-2025020806.snku_acc-imp.us_ne-02082025.gif

We’ve now seen these types of maps for 3 weeks now.  These maps are equivalent to seeing a category 5 hurricane traversing the Atlantic heading to the East or Gulf Coast that disappears in time. These are the money making ratings maps. 

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7 minutes ago, ChescoWx said:

We also have the NBM ticking up from its s 6z run....if you choose to believe!!

1739534400-L6qJNpVyvPk.png

As I stated yesterday today is when I’ll start paying attention to the the Tuesday thru Wednesday event. Mt Holly still seems to think we get a plowable event. The trends good or bad should start to resolve by Sunday, hopefully. 

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1 hour ago, penndotguy said:

Not one of these 300+hr fantasy storms have been close to reality over the past few years, until one gives us a fraction of the fantasy totals I’m not buying any of them even if the pattern looks great. Let’s get these inside 5 days then maybe we believe. 

I've been on this board, back then Eastern weather, for over 20 years. Those long-term, 300 hour models rarely pan out, maybe once in a blue moon. Should have a thread for 5 days and in threats. Then once we get within 2 days or so create a thread for that event. And  create a thread for long-term weenie threats which I would look at here and there but certainly not pay close attention to the event draws near. Long-term threats in the current ops is silly and clogs everything up for nothing because they usually fail. Basically take one storm at a time...

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Today will actually be our 10th winter event of the 2024-2025 season. While we have only added up to 15.1" of snow/sleet so far this season that is 77% of our average snow through today. For Team Snow if you are upset with our snow deficit this year....imagine if you lived in the upper Midwest. Here in Chester County, we have almost 40% more snow so far this winter season than both Minneapolis and Chicago? Today we should see snow arriving this afternoon quickly changing to sleet and then freezing rain. Driving this evening should be discouraged. We have a few more winter events in our future this week. However, the trend has been overall for less snow than earlier modeled. That said several inches of snow and sleet remain possible before the Friday morning rush hour. No doubt many forecast changes remain this week.

image.png.24f88e995fce2a113d5a351a39eb48a4.pngimage.thumb.png.09bf17f88b1d6c46688e38f7082bbc80.png

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10 minutes ago, LVblizzard said:

NAM is a complete whiff for Tues-Wed. Yes it’s the NAM at range but this event is quickly turning to crap.

To my weenie eyes, it looks like the old “models focusing on the wrong wave” scenario. Instead of the Tuesday wave, perhaps the Thursday thingy is where their attention will turn to.

But by then, will temps be on our side? Anyway, I already declared I’m out on the Tuesday deal, so I’ll take my time out and go sit in the corner.

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12 minutes ago, JTA66 said:

To my weenie eyes, it looks like the old “models focusing on the wrong wave” scenario. Instead of the Tuesday wave, perhaps the Thursday thingy is where their attention will turn to.

But by then, will temps be on our side? Anyway, I already declared I’m out on the Tuesday deal, so I’ll take my time out and go sit in the corner.

wise decision. The old farts like me always wait until 48-72 hours when the pac buoys are no longer calling the shots for the models for accurate precip totals . That time period starts at the 0Z models tonight. Consistency is what I am looking for, not for actual amounts this far out. 12-18+ has been demonstrated in the models but not proven yet. The more accurate data ingestion in the models the better consistency.   

Tonights storm is a literal crap shoot.  The damn moisture again is being sucked out of the atmosphere before the LP hits our area.  I got down  to 15 degrees this morningt and my indoor humidifier is running like gang busters again.  The only saving grace maybe an upper level low forming in the sw of the Altoona area that may swing buy and give us some thundersleet/snow. That is worth seeing.  Also, dendritic growth could be an issue early this evening with half dollar to pancake size flakes forming and can pile up quickly. The snow accumulations are all over the place indicating 2-7 inches tonight on the mesos. I am sticking with the HRRR as it has been somewhat believable in the last few storms for the LV.  3-5 inches of snow appears to be a good bet right now for me but nothing surprises me and the later the start,  the less we get as the upper level low will be getting its shiot together further northeast of us and we get screwed again. By the way, my prediction the wording "my roads are caving" will be used a lot in posts later this evening LOL

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9 minutes ago, Albedoman said:

wise decision. The old farts like me always wait until 48-72 hours when the pac buoys are no longer calling the shots for the models for accurate precip totals . That time period starts at the 0Z models tonight. Consistency is what I am looking for, not for actual amounts this far out. 12-18+ has been demonstrated in the models but not proven yet. The more accurate data ingestion in the models the better consistency.   

Tonights storm is a literal crap shoot.  The

So is this how qpf is determined 

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To my weenie eyes, it looks like the old “models focusing on the wrong wave” scenario. Instead of the Tuesday wave, perhaps the Thursday thingy is where their attention will turn to.
But by then, will temps be on our side? Anyway, I already declared I’m out on the Tuesday deal, so I’ll take my time out and go sit in the corner.

Yes this is the entire reason models backed off the more N route. I wouldn’t be shocked if an icon scenario occurs. Thursdays wave is too warm for most


.
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3 minutes ago, Heisy said:

Getting a decent snowstorm in Philly seems like pulling teeth. This is probably another 1-1.5


.

Heisy.

If the woman in your avatar is your wife/girlfriend please give her equal exposure. She is much better looking. J/K

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2 hours ago, LVblizzard said:

NAM is a complete whiff for Tues-Wed. Yes it’s the NAM at range but this event is quickly turning to crap.

I'm not even shocked. I feel like we do this regularly anymore. Now when the epic pattern goes to shit or doesn't produce, I will be disappointed.  Not really tbough, because again, it's kind of the norm for us.

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