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Moving past first week of January General Discussion/banter


Baroclinic Zone

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It wasn't posted to verify a warm-up, just posted to show that at one point (a long, fuzzy time ago in NWP) tomorrow was shown as an all-out blowtorch.

 

Oh I know, but the overall pattern wasn't bad.  It isn't cold, it's seasonable to above across the entire region.  They chased off Joe, but I'm betting departures were substantial in many areas due to overnight lows.

 

 

Hard linking a 384 hour off hour OP run for kicks and giggles.   Let's see how many/to what extent these features exist in 15 days  (around the 23rd - 26th):

 

1.  SE high

2. High off the west coast

3. Low near/off the BC coast

post-3232-0-95238000-1357772575_thumb.gi

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This weekend could torch, especially if we get enough sunshine.

 

Some analog dates...
1/6/2007 - Mostly sunny at BDL, high temperature 72F.

12/7/1998 - Sunny at BDL, high temperature 76F.

 

More realistic analogs with partial sunshine (highs at BDL)...
12/17/1996 - 56F
1/4/1993 - 61F 
11/30/2006 - 64F

 

Obviously the setup is not exactly the same and we are seeing some moisture trying to sneak in, mainly in the form of clouds, for both Saturday and Sunday.

 

post-533-0-88003700-1357772651_thumb.png

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Quincy I thought about that date....Jan2007. My question is how well will we mix. It looked like high pressure may be close enough to limit mixing? I just glanced at it so maybe I'm wrong.

 

That is a good point, I didn't take into consideration the placement of high pressure. It's very difficult in the heart of winter to get temperatures in the 70F+ range up here. Literally everything has to go right. With that said, MOS is playing big-time catch-up. Given the raw data, the 850mb method yields highs in the upper 50's to lower 60's under partial sunshine for interior southern New England.

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That is a good point, I didn't take into consideration the placement of high pressure. It's very difficult in the heart of winter to get temperatures in the 70F+ range up here. Literally everything has to go right. With that said, MOS is playing big-time catch-up. Given the raw data, the 850mb method yields highs in the upper 50's to lower 60's under partial sunshine for interior southern New England.

There were actually SVRs out as the cold front went through New England that time lol.

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That is a good point, I didn't take into consideration the placement of high pressure. It's very difficult in the heart of winter to get temperatures in the 70F+ range up here. Literally everything has to go right. With that said, MOS is playing big-time catch-up. Given the raw data, the 850mb method yields highs in the upper 50's to lower 60's under partial sunshine for interior southern New England.

How do you figure, what are you using as a lapse rate?

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Nerf gun to head I bet we are hard pressed to get -20c anywhere in NE at 8h in the next 10 days. Lets see what later runs show. I think we are going to mild up in between snow threats either side of the 20-23rd period

 

I think NNE has a good shot to get -20C 850 temps in the next 10 days....that really isn't all that rare for them. Definitely tougher down here, but even last winter we managed to do it at least once.

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Nerf gun to head I bet we are hard pressed to get -20c anywhere in NE at 8h in the next 10 days. Lets see what later runs show. I think we are going to mild up in between snow threats either side of the 20-23rd period

 

violently disagree from BTV to BML to BANGOR maine you can laaaaaaaaaaaaaaaaaaaa lock it up .  

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How do you figure, what are you using as a lapse rate?

 

It was my senior research, you of all people should know this.

The method works best under conditions with partial cloud-cover, no precipitation and no strong high pressure overhead.

 

DT has a similar 850mb rule at WXrisk.com.

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Nerf gun to head I bet we are hard pressed to get -20c anywhere in NE at 8h in the next 10 days. Lets see what later runs show. I think we are going to mild up in between snow threats either side of the 20-23rd period

I think NNE has a good shot to get -20C 850 temps in the next 10 days....that really isn't all that rare for them. Definitely tougher down here, but even last winter we managed to do it at least once.

Yeah I agree. I really wouldn't be surprised to get a glancing shot of that into SNE too. Won't take much.
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It was my senior research, you of all people should know this.

The method works best under conditions with partial cloud-cover, no precipitation and no strong high pressure overhead.

 

DT has a similar 850mb rule at WXrisk.com.

:lol: Yeah I know about your senior research but I just feel like what time of year you use the method in makes a big difference. We're in mid-January with a low sun-angle and shallow mixing layers. BUFKIT shows a strong low-level inversion @ BDL all weekend with low-level moisture trapped beneath this inversion. It'll be interesting to see how it trends in the next 48 hours.

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It was my senior research, you of all people should know this.

The method works best under conditions with partial cloud-cover, no precipitation and no strong high pressure overhead.

DT has a similar 850mb rule at WXrisk.com.

:lol: Yeah I know about your senior research but I just feel like what time of year you use the method in makes a big difference. We're in mid-January with a low sun-angle and shallow mixing layers. BUFKIT shows a strong low-level inversion @ BDL all weekend with low-level moisture trapped beneath this inversion. It'll be interesting to see how it trends in the next 48 hours.

I haven't looked at soundings for that area but it might a case where some interior locales hold in the 40s for quite a while but eventually mix out into the 50s for a short time ahead of the front

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:lol: Yeah I know about your senior research but I just feel like what time of year you use the method in makes a big difference. We're in mid-January with a low sun-angle and shallow mixing layers. BUFKIT shows a strong low-level inversion @ BDL all weekend with low-level moisture trapped beneath this inversion. It'll be interesting to see how it trends in the next 48 hours.

 

The method has a different set of equations for every month...

Under those conditions, it's within 4F more than 90% of the time...

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Left Cambridge at 7pm at 43F,  didn't get below low 40's until past Gardner.  Quite a gradient of snow pack and temps. W of Gardner snow pack was still significant.  Once into the Pioneer Valley the temp quickly went below freezing.  Greenfield was in the upper 20's and looks looked minimal melting with bushes still laden with snow.  Valley cold ftw I guess.  Up to 29F imby now but looks like the elevations are torching.

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