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December Pattern Disco- 2013


Damage In Tolland

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I prefer our 30 page discussion to be geared to whether someone hits 87F or 91F or if BDR will finish with a -0.2F or +0.9F departure.

I'll admit to being jealous about the amount of discussion you guys have over even minor snow events in SNE...I wish there was this intense discussion with 1am Euro updates and all that every time it snows 1-5" up here. I'm usually left posting to myself, JSpin, and now Eyewall, :lol:

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Okay, I have to ask... How exactly does one "work so hard for it to snow"?

If you weenie out hard enough, you can actually change the weather. It's like if someone forecasts rain, while another poster thinks snow, then when it rains that poster will reply well I guess you got that rain you were hoping for. There's a disconnect between "wanting" and "forecasting" at times.

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If you weenie out hard enough, you can actually change the weather. It's like if someone forecasts rain, while another poster thinks snow, then when it rains that poster will reply well I guess you got that rain you were hoping for. There's a disconnect between "wanting" and "forecasting" at times.

:lmao: especially around here....

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I'll admit to being jealous about the amount of discussion you guys have over even minor snow events in SNE...I wish there was this intense discussion with 1am Euro updates and all that every time it snows 1-5" up here. I'm usually left posting to myself, JSpin, and now Eyewall, :lol:

I'm always reading but have little to add meteorogically :(
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I will take my chances up here with d10 cutters all winter.

Well yeah, the land where warm fronts come to die. Still seems ok in the long range, but looks a little cutter-ish to me after next week. I mean it might be a lot of messy events down here, but riding the line. Hopefully it's not a cold-crap storm-cold type pattern.

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Well yeah, the land where warm fronts come to die. Still seems ok in the long range, but looks a little cutter-ish to me after next week. I mean it might be a lot of messy events down here, but riding the line. Hopefully it's not a cold-crap storm-cold type pattern.

That's crossed my mind a few times. I remember storms where it warms up just in time for all rain or a 1 inch snow then all rain

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Well yeah, the land where warm fronts come to die. Still seems ok in the long range, but looks a little cutter-ish to me after next week. I mean it might be a lot of messy events down here, but riding the line. Hopefully it's not a cold-crap storm-cold type pattern.

Yeah...I expect a messy stretch and some to not work out. I just like that frigid low-level cold lurking to our north. I'm speaking more IMBYish too because of how well we CAD. We're due for a grinch storm too...it's been a few years.
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That's crossed my mind a few times. I remember storms where it warms up just in time for all rain or a 1 inch snow then all rain

It's probably a mix of both messy storms and warm ones.. We'll just see how it goes. The EPAC ridging is not ideal, but it beats the GOA low. It also seems like the Aleutian lower heights will weaken as heights tried to rise at the tail end.

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Add another day to the Euro ens not having a warmup. For NYC and Toronto below, wheres the cutter on this?

Pretty cold south to North on the Euro Ens, what was discussed last week for the 11-15 day period has trended colder 5 consecutive days.

NYC

08.12.2013 12 GMT -7.3 °C

09.12.2013 12 GMT 1.5 °C

10.12.2013 12 GMT -5.3 °C

11.12.2013 12 GMT -12.7 °C

12.12.2013 12 GMT -14.1 °C

13.12.2013 12 GMT -13.5 °C

14.12.2013 12 GMT -8.1 °C

15.12.2013 12 GMT -1.1 °C

16.12.2013 12 GMT -5.3 °C

08.12.2013 12 GMT -13.2 °C

09.12.2013 12 GMT -2.3 °C

10.12.2013 12 GMT -16.6 °C

11.12.2013 12 GMT -17.8 °C

12.12.2013 12 GMT -18.4 °C

13.12.2013 12 GMT -15.3 °C

14.12.2013 12 GMT -10.4 °C

15.12.2013 12 GMT -7.9 °C

16.12.2013 12 GMT -10.7 °C

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Add another day to the Euro ens not having a warmup. For NYC and Toronto below, wheres the cutter on this? 


Pretty cold south to North on the Euro Ens, what was discussed last week for the 11-15 day period has trended colder 5 consecutive days.
NYC	 		
08.12.2013 12 GMT		 -7.3 °C		
09.12.2013 12 GMT		 1.5 °C		
10.12.2013 12 GMT		 -5.3 °C		
11.12.2013 12 GMT		 -12.7 °C		
12.12.2013 12 GMT		 -14.1 °C		
13.12.2013 12 GMT		 -13.5 °C		
14.12.2013 12 GMT		 -8.1 °C		
15.12.2013 12 GMT		 -1.1 °C		
16.12.2013 12 GMT		 -5.3 °C	

		
08.12.2013 12 GMT		 -13.2 °C		
09.12.2013 12 GMT		 -2.3 °C		
10.12.2013 12 GMT		 -16.6 °C		
11.12.2013 12 GMT		 -17.8 °C		
12.12.2013 12 GMT		 -18.4 °C		
13.12.2013 12 GMT		 -15.3 °C		
14.12.2013 12 GMT		 -10.4 °C		
15.12.2013 12 GMT		 -7.9 °C		
16.12.2013 12 GMT		 -10.7 °C

Plenty of members have cutters.
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GFS had a 14th storm out to sea, while the 16th storm when cutting inland, but wasn't a true cutter. Key is it still has a storm and the EURO 00z and 12z both had a storm as well.

I wouldn't worry about storms that far out on the deterministic models. Just focus on the pattern and the ensembles. You're going to make yourself crazy obsessing over fantasy storms that won't verify on op runs. I know we were just talking about the d10 euro op, but it was sorta in jest.
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I wouldn't worry about storms that far out on the deterministic models. Just focus on the pattern and the ensembles. You're going to make yourself crazy obsessing over fantasy storms that won't verify on op runs. I know we were just talking about the d10 euro op, but it was sorta in jest.

I understand the deterministic models and the operational models are unlikely to have the actual solution this far out, I'm just looking at the overall pattern placement and I'm liking it. Especially with the PV over Hudson Bay. Although the GFS and EURO are replacing the PV with a new PV, which may lead to relaxation period with a cutter in the future unless the PV can reposition itself in future runs over Hudson Bay, Canada.

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Well some cold and cutter humor aside...it's still a dicey pattern in the 11-15 day and likely beyond..but as long as the PV is north of the border..we'll have a shot. That's about all you can say. It may be a matter of time before timing allows a more widespread wintry threat. The one near day 8 is one to watch. You can dissect the pattern and point all all the analogs you want, but the fact of the matter is you can't account for nuances in the flow that may or may not allow it to behave like previous years. I'm sort of intrigued by the pattern..but I'm also more than aware that it may not be fruitful. Luckily it's early December. This type of pattern can still favor a miller B if the PV flexes south just enough.

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Well some cold and cutter humor aside...it's still a dicey pattern in the 11-15 day and likely beyond..but as long as the PV is north of the border..we'll have a shot. That's about all you can say. It may be a matter of time before timing allows a more widespread wintry threat. The one near day 8 is one to watch. You can dissect the pattern and point all all the analogs you want, but the fact of the matter is you can't account for nuances in the flow that may or may not allow it to behave like previous years. I'm sort of intrigued by the pattern..but I'm also more than aware that it may not be fruitful. Luckily it's early December. This type of pattern can still favor a miller B if the PV flexes south just enough.

 

There's a threat around the 10th on the NAM in its final image at 84 hours.  But GFS focuses on sometime after that maybe the 11-12th period, but what I'm intrigued about is the 16th time frame.

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00z EURO at 240 hours shows a coastal storm with impressive dynamics as southern stream and northern stream disturbances phase over the eastern US.  What's interesting between the 12z yesterday model run and today's 00z run on the euro they show a difference at H5 with the December 13th system, with a more defined system, but still remains far enough offshore not to impact anyone on the east coast significantly.  00z Canadian and GFS showed this system as well.  What's interesting is the placement of the Polar Vortex over the hudson Bay, Canada and how favorable it is to get a storm to come up the east coast with some ridging over the western US states appearing after the day 1-3 system over the west coast.  I think we really need to watch first the frontal wave and clipper system for the 10th and then the 13th followed by the 16-17th system with some timing issues between the GFS and EURO on that system to pan out.

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