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September weather discussion


Ginx snewx

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Pretty interesting meteorology going on right now... we've got the southerly flow aloft pumping moisture north, while below the inversion at 8-10,000ft the winds are due north drilling cold low level air southward under the warm/moist air.

 

Temperatures have been falling all day, with 65F at midnight is now 56F at 1pm.  Pretty rugged day with rain, low clouds, mist/drizzle, north wind and temps in the mid/upper 50s.

 

The VAD shows this inversion pretty clearly... upper level winds are due south, lower winds are all NNW dropping temps across the area.

 

Sept_13_VAD.gif

 

 

Radar echos moving due north while all obs are showing NNW winds.

 

 

Sept_13_composite.gif

 

Pretty neat to see.

 

63.6/60

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Upslope rains this afternoon and evening at the ski area while its starting to dry out in town as we lose upper level support.

A photo of the upslope rain obscuring the Spine (this is looking west from the east side), while the mid-upper levels clear out. A sign of things to come...all we need is some low level moisture and something to push that moisture into the mountains. It really doesn't matter what happens above like 7000ft, as long as we have that moisture.

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Upslope rains this afternoon and evening at the ski area while its starting to dry out in town as we lose upper level support.

A photo of the upslope rain obscuring the Spine (this is looking west from the east side), while the mid-upper levels clear out. A sign of things to come...all we need is some low level moisture and something to push that moisture into the mountains. It really doesn't matter what happens above like 7000ft, as long as we have that moisture.

attachicon.gifimage.jpg

 

I for one can't wait until upslope season starts. 

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:lol: I know that's 40/70's favorite topic too.

Don't hate the weather, it's the only weather you've got.

I'm just a meso-scale weenie...I also enjoy learning about coastal fronts and how they help eastern MA, and how NE flow in low levels will upslope seeder-feeder style in ORH hills at the expense of the Tolland hills downstream.

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Hopefully '94 visits and this area gets 20-30" of OES like it did back then..lol. I'll be all over it.

What's the largest single OES event or is that like a few different ones that totaled 20-30"?

I wish more of you guys lived up here or upslope was more prevalent for a bigger population centers...with this group and the great meteorology knowledge I bet we'd have consistent awesome discussions on upslope.

But I don't blame anyone for not giving two shats, lol. When I lived in Albany back on WWBB or Eastern, I was always in the upstate NY forum and couldn't have cared less when the lake effect guys got all excited, haha.

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What's the largest single OES event or is that like a few different ones that totaled 20-30"?

I wish more of you guys lived up here or upslope was more prevalent for a bigger population centers...with this group and the great meteorology knowledge I bet we'd have consistent awesome discussions on upslope.

But I don't blame anyone for not giving two shats, lol. When I lived in Albany back on WWBB or Eastern, I was always in the upstate NY forum and couldn't have cared less when the lake effect guys got all excited, haha.

I'm busting balls if you can't tell. I would weenie out right with you if I lived there. I respect the mesoscale stuff, but you have to understand a little busting is come your way when it's 38F and sunny on a January day and you are ripping dendrites while in the 20s.

Pure prolific OES snow is hard to come by. Back in January '99, the town that I live in now had 16.5"

From mostly OES but enhanced from

Seeder feeder aloft. In very cold storms we get some ocean enhanced snow which in '94 amounted to quite a bit here. Spots near here and just south got 20-30" in Feb '94 with a great deal from OES. We definitely get some enhancement

from moisture off the Atlantic, but it is more prevalent when temps aloft are cold.

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What's the largest single OES event or is that like a few different ones that totaled 20-30"?

I wish more of you guys lived up here or upslope was more prevalent for a bigger population centers...with this group and the great meteorology knowledge I bet we'd have consistent awesome discussions on upslope.

But I don't blame anyone for not giving two shats, lol. When I lived in Albany back on WWBB or Eastern, I was always in the upstate NY forum and couldn't have cared less when the lake effect guys got all excited, haha.

I am intrigued by it as much as these guys were posting every half hour about hodographs and EML for severe two hundred miles from them. Plus I do ski so I do reap the benefits. Upslope events being much more common than OES and longer lasting are probably why I never was enthralled by OES but OES is certainly a treat for EMA especially Phil and CWEAT. Looking forward to your top of Gondola pics. this weather change brings us that step closer.
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I'm busting balls if you can't tell. I would weenie out right with you if I lived there. I respect the mesoscale stuff, but you have to understand a little busting is come your way when it's 38F and sunny on a January day and you are ripping dendrites while in the 20s.

Pure prolific OES snow is hard to come by. Back in January '99, the town that I live in now had 18"

From mostly OES but enhanced from

Seeder feeder aloft. In very cold storms we get some ocean enhanced snow which in '94 amounted to quite a bit here. Spots near here and just south got 20-30" in Feb '94 with a great deal from OES. We definitely get some enhancement

from moisture off the Atlantic, but it is more prevalent when temps aloft are cold.

 

It's just hard to maintain conditions necessary for this, especially once you get west of the CC Canal. Cold 850s and northeasterly flow is hard to come by. It's a little easier to do NNW and clip the outer Cape.

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