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Medium-long range thread


tombo82685

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hadn't looked at soundings (Barker's site didn't have the 6z up) and looked at the thickness map verbatim. Looked a bit warm in the lower levels through given the 540 was west while the 850 was east. I do see the 1000-850 showing a colder surface but temps are surface are still above freezing (IIRC) most everywhere except LV and Berks.

Am not enthused about this to be honest...we're threading a small needle with a rather big piece of string...not an easy task. Given the GFS' tendency to flip all over the place the last few runs I'm not really buying anything of substance. Euro seems much more reasonable at this point...even if it trends a touch north and throws some sh*t into the n & w burbs.

I was discussing with Jim Hayes yesterday about putting "threading the needle" in the long term.

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gfs much stronger with the shortwave traversing the country, pumping the se ridge...the cold air is also delayed do to how everything is amplified more so bringing the low further north a majority rain for everyone outside lehigh valley and pocs...LL cold ftl

A model output solution like this coming along with a strongly positive nao and a pv sitting over Baffin Island is not that surprising. That being said dp/dt the last five gfs runs valid at 7 pm Thursday has given us:

A 994 low 40.12/71.86W good for grill camming in the Poconos

A 1006 low 36.72N/75.35W good for grill camming in Allentown

A 1010 low 35.82N/72.23W good for grill camming in Rehoboth

A 997 low 39.98N/68.04W good for grill camming in Boston

A 978 low 46.63N/67.39W good for grill camming in Maine

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A model output solution like this coming along with a strongly positive nao and a pv sitting over Baffin Island is not that surprising. That being said dp/dt the last five gfs runs valid at 7 pm Friday has given us:

A 994 low 40.12/71.86W good for grill camming in the Poconos

A 1006 low 36.72N/75.35W good for grill camming in Allentown

A 1010 low 35.82N/72.23W good for grill camming in Rehoboth

A 997 low 39.98N/68.04W good for grill camming in Boston

A 978 low 46.63N/67.39W good for grill camming in Maine

About as much consistency as Vince Young's arm.

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I hate to ask this personal question in this very good thread, but I'm heading back to South Carolina from the LV Wednesday morning early. I've spent two days trying to gauge sensible weather during that time frame. What is the board consensus on what I'll see from ABE to MDT to DCA to I95 south from there? Every model run provides a different solution.

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About as much consistency as Vince Young's arm.

It is different to see it hang back a closed low in the desert southwest more than the Euro. That being said, yeah its been suffering in the medium range of late; last time I remember the Euro trending toward its solution vs the GFS trending toward the Euro was around Thanksgiving when the Euro had some wrap-around snow solutions into Thanksgiving Day.

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I hate to ask this personal question in this very good thread, but I'm heading back to South Carolina from the LV Wednesday morning early. I've spent two days trying to gauge sensible weather during that time frame. What is the board consensus on what I'll see from ABE to MDT to DCA to I95 south from there? Every model run provides a different solution.

if its wed morning you will be fine any shot at frozen precip would be wed night or thurs.

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A model output solution like this coming along with a strongly positive nao and a pv sitting over Baffin Island is not that surprising. That being said dp/dt the last five gfs runs valid at 7 pm Friday has given us:

A 994 low 40.12/71.86W good for grill camming in the Poconos

A 1006 low 36.72N/75.35W good for grill camming in Allentown

A 1010 low 35.82N/72.23W good for grill camming in Rehoboth

A 997 low 39.98N/68.04W good for grill camming in Boston

A 978 low 46.63N/67.39W good for grill camming in Maine

Yeah, that is pretty crazy. I guess we're gonna have to wait until early next week to get a better picture. Though, with the teleconnections the way they are I am not getting my hopes up.

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It is different to see it hang back a closed low in the desert southwest more than the Euro. That being said, yeah its been suffering in the medium range of late; last time I remember the Euro trending toward its solution vs the GFS trending toward the Euro was around Thanksgiving when the Euro had some wrap-around snow solutions into Thanksgiving Day.

That was not that long ago too.seams as if we are now the american models VS the forgin models The SREF'S and the NAM also hold back the shortwave and are more amplified. Only 2 runs in a row on the GFS for a hit with a storm. Lets see what the other models say.

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euro holds serve.

Gotta marvel at its consistency, even its snowfall maps (light in delmarva/far se nj) hardly differed from the 00z run. Still odd on how the GFS holds back the energy more, the driving force is in Canada, not exactly poorly sampled. Its 250mb jet may have initialized slightly stronger (about 10kts) than the soundings, but its not enough to really corroborate that solution. The Euro looked about 5 kt too strong, but both would not raise an inconsistency flag really.

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Gotta marvel at its consistency, even its snowfall maps (light in delmarva/far se nj) hardly differed from the 00z run. Still odd on how the GFS holds back the energy more, the driving force is in Canada, not exactly poorly sampled. Its 250mb jet may have initialized slightly stronger (about 10kts) than the soundings, but its not enough to really corroborate that solution. The Euro looked about 5 kt too strong, but both would not raise an inconsistency flag really.

Yeah...and that consistency is worth noting when looking at what might ultimately happen. We've had five different solutions with the GFS in the last five runs...and given its awful performance of late I can't really feel comfortable leaning into its thinking at this point.

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Would prepare for an inland running rain storm. That energy in the west right now is pretty amped.If you want snow this storm is not for you unless you live well northwest of the big cities perhaps central pa.

Hopefully 00z or tomorrow models pick up on how amped things currently are at H5. We may just have to wait for the actual short wave to develop.

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correct me if im wrong, but looks like most the storm is during the day time except for the tail end? also by the looks of the gfs, could be some wet flakes in the city at the tail end.

yes, it would be during the day...they may get some wet flakes, but not much...here is hr 102 skew t for phl at the end of the storm, the bl is to warm

GFS_3_2011120418_F102_40.0000N_75.0000W.png

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Would prepare for an inland running rain storm. That energy in the west right now is pretty amped.If you want snow this storm is not for you unless you live well northwest of the big cities perhaps central pa.

Hopefully 00z or tomorrow models pick up on how amped things currently are at H5. We may just have to wait for the actual short wave to develop.

I don't think anyone is to excited over this setup, merely just talking about what the model shows. Just my two cents, i don't think this comes that far inland, has a better shot of escaping or brushing than a storm tracking over i95. The northern stream diving down is going to prevent this from cutting. Unless thats modelled wrong, or does a big phase i don't see a storm cutting west of philly. Not saying philly gets snow, but i dont see a wrapped up storm.

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