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Threat Jan 25-28th time fram. Possible Miller A


IsentropicLift

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If the PAC recons are indeed out there, it's possible. Or it's just another solution ala GFS.

They are out there and in the 12Z GFS:

Fri Jan 21 14:52:16 2011 GMT

NOUS42 KWNO 211451ADMNFD SENIOR DUTY METEOROLOGIST NWS ADMINISTRATIVE MESSAGENWS NCEP CENTRAL OPERATIONS CAMP SPRINGS MD1350Z FRI JAN 21 201112Z NCEP MODEL PRODUCTION IS ON TIME..15 DROPSONDES IN THE WRN PACIFIC WERE AVAILABLE FOR 12Z GFS INGESTIN SUPPORT OF WSR..$$SHIREY/SDM/NCO/NCEP

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the solution is very viable IMO. let the mets or knowledgable weenies discuss it but we have to realize the off shore Low, which is becoming better sampled, that moves into the Canadian maritines is KEY imo. its what strengthens up there and forms into a brief 50/50 that keeps the H from moving out. this is why an inland track, which was shown for a few runs, now CANT happen.

Well HPC said as much (take that FWIW) that the further east scenario being painted by the ensembles was "plausible."

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A mid ground between last night's 6z and today's 12z may be best. I just can't see it being as far offshore as the 12z has it @ 114 with the nao the way it is.

That's probably very reasonable. The NAO is slightly negative (or will be next week) but east based. How much of a difference is there in mileage between the two runs? It seems this 12z GFS run matches up with yesterday's 12z EURO run if that means anything.

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Well that sure was fun.

Based upon what Wes Junker once said, I've tried to monitor on a daily basis the CPC's 6-10 and 8-14 day analogues. Although several models sure want to bomb the EC with rain or snow, I haven't seen the analogues pop up any KU dates.

Am I merely being obsessive or does this send up a warning flag?

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GFS ensembles are a good bit further west than the OP....the mean takes the low from off Cape May, NJ to over CC

So the OP switched from being the western outlier to the eastern outlier? lol Still anything is better than the 6z GFS and we could still stay all snow with a compromised track. The 12z GEFS ensemble means are still good for all snow here.

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we can call the gfs a fast outlier but the euro had this timing yesterday and the srefs and NAM are off to the races so its possible.

We have a strong nothern flow and a lot of energy coming over the ridge behind this storm. Faster makes sense to this weenie. :weenie:

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FWIW, the gfs ensembles are coming in pretty amped. The mean should be ok but there is probably some very warm solutions in there.

Yeah, the OP run is very cold. Obviously high alert this heads up along the coast or slightly inland.

Beautiful moisture feed and very well developed mid-levels. Big snow potential. I wonder if this could finally be the big one for CPa.

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Just ran the Wxsim module with the 6z and it just shows the following run of the mill type storm for the NW Philly burbs

Snow arriving Tuesday afternoon...Heavy Snow overnight with 10 to 12" of snow accumulating then transitioning to ZR/IP and finally all ZR and very heavy with 1.78" of liquid falling with temps below freezing. Finally to all rain to top it off with 0.34" falling with temps above freezing

The Wxsim indicates when the rain ends there will still be around 13" of snow and ice on the ground......yawn

www.chescowx.com

Paul - think of the destruction that would occur with 1.78 zr.

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Normally yes. This feels different tho. I would still be worried if I lived near the coast.

Inland will probably fare better on this storm. I worry more about rain, especially 95 east. There hasn't been a consistent trend one way or the other -- lots of waffling on the models about ptype since the low is close to the coast.

I remember we said this before 12/26 also... granted it was the EURO back then.

The Euro was also very consistent run after run for several days, wasn't it?

At least the storm signal is consistent -- there will be something in all likelihood.

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GGEM is an coastal hugger/just inland bomb...snow to rain northeaster cities and inland.

Wild. All solutions are still on the table, of course. Which models ingested the new data? I know the GFS did and the Euro will-- what about the others?

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Inland will probably fare better on this storm. I worry more about rain, especially 95 east. There hasn't been a consistent trend one way or the other -- lots of waffling on the models about ptype since the low is close to the coast.

The Euro was also very consistent run after run for several days, wasn't it?

At least the storm signal is consistent -- there will be something in all likelihood.

That storm was so weird to model-- the euro had it for like two runs and then lost it and the gfs brought it back when it had its "initialization errors" lol-- in the 3-5 day period I believe all the models lost it.

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