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September weather discussion


Ginx snewx

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I suspect it will be like any other winter. The euro will win most of the battles and kick arse in the H5 scores, but the few times it loses on a storm weenies will say it isn't as good as it used to be.

 

 

+1

 

 

Hear it every year...then some start to trust the GFS only to see the Euro school it the next 3 or 4 storms.

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MWN awaiting its first snowflakes... freezing rain and sleet so far.

 

"The mercury has fallen below freezing once again, bringing a return of icing conditions this afternoon. In addition, we have received on-and-off freezing rain and ice pellets (sleet) in the last hour. Will we see our first flakes of the season this afternoon?"

 

1174809_10151678288174685_877489175_n.jp

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+1

 

 

Hear it every year...then some start to trust the GFS only to see the Euro school it the next 3 or 4 storms.

 

Hopefully we can put that to bed in the couple of years and have an American model that is equally as good or better and free to use.  I know this is OT but I wonder why we can't get a bunch of the wx companies that benefit from the data chip in to help offset the costs instead of waiting for tax payer dollars.  You'd think that they'd want to have something to be proud of being American companies and all. </rant>

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Just has these two cold cutoffs that give us a very chilly rain, one on Sunday and then another the following Tuesday. The one on Sunday might be sprinkles, but reminded me more and more of the season we are approaching.

when today does the updated seasonal forecast come out? at least I thought you posted in the winter thread it's the 8th

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Take a look at this on radar today. See those echoes on Long Island and Connecticut... almost lined up parallel to one another. They're not-met echoes (very low CC) so I assume dust/insects/etc but I wonder what's making the echoes line up like that.

 

Almost like cloud streets with no clouds? 

post-40-0-77093500-1378673143_thumb.png

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Take a look at this on radar today. See those echoes on Long Island and Connecticut... almost lined up parallel to one another. They're not-met echoes (very low CC) so I assume dust/insects/etc but I wonder what's making the echoes line up like that.

 

Almost like cloud streets with no clouds? 

 

That may be exactly what that is ...  Rad is quite sensitive; it can be tuned up considerably and pick up air density/continuity changes, whether by particle density or air its self.  It's why we can sometimes see seabreeze boundaries pushing west across eastern sections.   There's still up-down restoring motions in the atmosphere in the absence of clouds and given to the gradient, those will tend to form wave patterns in the atmosphere -- we just weren't in a saturable column at the time. 

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Chilly day, first daytime high in the 50s for me (59F at home, though MVL hit 60F) and now 57F.

A nice low launch point for tonight's frost advisory...dews are upper 30s though, so not sure how low we get. I could see only 38F or 39F happening more than 32-36F.

 

37F in calm wind is about the cut-off for car tops to start glittering.  Radiative transfer off metalic surfaces is remarkably efficient with clear/calm/dry air.   I think if you decouple tonight it should be frosty in the favorables.  

 

Quite the short duration turn around.  Pretty interesting chunk of EML air is broken off and whisked through here, mid week.  Then the trough next week...

 

Still looks like an extended period of less meridional flow may set up for mid month.  That would put an end to the glancing cool shots pattern for a while. 

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