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Central PA - Winter 2021/2022


Bubbler86
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17 minutes ago, paweather said:

I'll take this map for 500

Even if taboo... if one uses this for what its worth, it shows that opportunities for white gold may be getting closer to our backyards.

Mind you....if one looks at the 192 GooFuS Op, it went from no storm at 6z to this at 12z.  Just an example of why even in medium range its only a tool....and shouldnt be worth chewin one fingernail over.....Beyond 3 days, search for trends...good or bad.   

gfs_mslp_pcpn_frzn_us_33.png

gfs_mslp_pcpn_frzn_us_32.png

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FWIW, Ens guidance is notably flatter for timestamp above, so glue your fingernail back on.....it wasnt worth the chew, and extrapolated, shouldn't cut, and would likely be something for all as it fits the NAO/AO at same timestamp.  Looks to be best window we've had (on the maps and charts anyways).  

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7 minutes ago, paweather said:

EC = Boring

EC = close to something really good later next week.

There is some ridging out west and there is plenty of cold High pressure to our north & northwest.

As it is, the storm transfers from western PA to just north of NYC.

It would not take much to have a little more flat solution or a slightly earlier transfer to bring us the snow goods.

77F1577B-803F-484F-8272-326DBAFDF233.png

FCE1ABE8-1796-4610-BEE9-9D07C5A78B8A.png

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Yea that 12z Euro threw down a 12”+ swath (1-2 feet factoring Kuchera) on a rapidly developing wave running an arctic boundary from the Lower Lakes through upstate NY/interior Northeast.   *Yawn*

That swath was right through PA just on the 0z run, and this particular wave is on all the models today. Not super far out in range so the strong storm signal amongst models is noteworthy, but definitely too far out to make any assumptions. 

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12 minutes ago, MAG5035 said:

Yea that 12z Euro threw down a 12”+ swath (1-2 feet factoring Kuchera) on a rapidly developing wave running an arctic boundary from the Lower Lakes through upstate NY/interior Northeast.   *Yawn*

That swath was right through PA just on the 0z run, and this particular wave is on all the models today. Not super far out in range so the strong storm signal amongst models is noteworthy, but definitely too far out to make any assumptions. 

Just saw the low track.  Rather unusual.   

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2 minutes ago, Cashtown_Coop said:

Just saw the low track.  Rather unusual.   

Yea it looks to be modeled as a very robust shortwave that’s pulling an arctic front. We can debate how long the significant cold shot behind it lasts but it looks like a pretty significant blast with -15 to -20ºC 850 air briefly overspreading the commonwealth

If we had a big time ridge established out west for this we might have been making comparisons to some other arctic wave that happened on 1/6-7 a few years back.

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25 minutes ago, MAG5035 said:

Yea it looks to be modeled as a very robust shortwave that’s pulling an arctic front. We can debate how long the significant cold shot behind it lasts but it looks like a pretty significant blast with -15 to -20ºC 850 air briefly overspreading the commonwealth

If we had a big time ridge established out west for this we might have been making comparisons to some other arctic wave that happened on 1/6-7 a few years back.

I'd settle for the flatish look we've had, and just being on the colder side of the boundary, as we've been hoping for.  With all of the vorts we've been seeing, that'd set up a nice conveyor belt of snowballs from the midwest.  This looks to be progressing twds the promise land.  Just gotta hope NAO/AO dont mute the signal, cause we all know how easy it is to fail.

 GFS MJO index ensemble plume

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1 hour ago, pasnownut said:

I'd settle for the flatish look we've had, and just being on the colder side of the boundary, as we've been hoping for.  With all of the vorts we've been seeing, that'd set up a nice conveyor belt of snowballs from the midwest.  This looks to be progressing twds the promise land.  Just gotta hope NAO/AO dont mute the signal, cause we all know how easy it is to fail.

 

Yea trends on the models have been consistently showing a transition to a +NAO/AO going forward. For us to have a longer lasting period of cold/snow opportunities later in January, this is where we need some ridging out west to build in the PNA realm to go with the persistent Pac ridging (-WPO). Looking at today’s ensembles, Euro EPS and GEFS both transition towards a western ridge look but differ a good bit in alignment.

GEFS vs Euro EPS 500mb anomaly (Day 10-15 average)

266947754_GEFSENSWeatherBellMaps.thumb.png.ce8f6ee43f1db436a66e7c79ea164745.png

The GEFS has a really good look, with the ridge bridging over to Siberia. This alignment would suggest a more direct cold air source, even with the +AO look. Basically pretty chilly but not overwhelming.  The Euro has troughing in AK.. cutting off that Siberian source and flattening/broadening the western ridge, and generally making for a warmer look in the east.

Here’s the comparison with the 5 day average 850 temp anomalies (D10-15 average)

1603590435_GEFSENSWeatherBellMaps2.thumb.png.ea14a71b496e826e139146dce6b5f918.png 

The Euro still isn’t super torchy in our region, but you can see how much more favorable the GEFS would be when considering storm track. 

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18 minutes ago, losetoa6 said:

Do they still have the Loch Ness monster coaster? ....then I'm in 

 

16 minutes ago, Bubbler86 said:

Oh yes.  And it opens early (in the summer of course) so you can ride it before the rest of the park opens.  

Rode the Loch Ness Monster in 1981 and again again in 2019. Amazing how perception changes from a 16 year old to when you're 54. Equally amazing how far coasters have come - I drove to BGW JUST to ride that shortly after I got my license. It was a "must do" back then. 

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