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November 2025 general discussions and probable topic derailings ...


Typhoon Tip
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2 hours ago, CoastalWx said:

Wow gfs and euro are HWW stuff Wed night. 

Too bad that isn't coming through during the day, probably could get a few strong convective cells. 

But maybe some heavy graupel showers as that rolls through overnight. But yeah that is an impressive wind signal (at least on the GFS) with steep llvl lapse rates and 925mb winds >50 knots. 

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3 minutes ago, weatherwiz said:

Too bad that isn't coming through during the day, probably could get a few strong convective cells. 

But maybe some heavy graupel showers as that rolls through overnight. But yeah that is an impressive wind signal (at least on the GFS) with steep llvl lapse rates and 925mb winds >50 knots. 

I’m sure it will tone down as we get closer, but that sig was damaging. 

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2 minutes ago, CoastalWx said:

I’m sure it will tone down as we get closer, but that sig was damaging. 

Yeah I wouldn't be surprised if it's toned down a bit with the 12z runs but I guess we'll get an idea when the NAM rolls out and whether it falls towards the GFS/Euro. The NAM isn't too far off from the GFS but the GFS has a narrow ribbon of 130+ knots at 500mb along the base of the shortwave...that's wild stuff. 

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I've seen a lot more of these 12 to 15F differential mornings when comparing dawn temperatures between ORH and here in the Nashoba Valley than I normally do.

It seems we are getting an anomalously large number of superb radiational cooling nights.   That one factor appears to be over-achieving relative to "rational cooling night" climo - if there were ever a metric.  

It's just I've seen a lot more of these 12 to 15F differential morning comparing dawn temperatures between ORH and here in the Nashoba Valley than I normal due. Autumn is the time of year for that to happen, true.   But lost count

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15 minutes ago, WxWatcher007 said:

Groton taking the crown of coldest coastal spot in CT so far this fall. 

I think they radiate well there with the sandy soil. HVN and BDR were in the mid 40s most of the night. 

 

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Well 12z GFS did not really back down. But as a reference for what is being discussed, here is a point-and-click sounding from within northeast Connecticut. That is a very well mixed lowest 1km (nearly dry adiabatic) with 50+ knot winds at 850mb. Very dry below the 850mb level too which would further enhance downward momentum. 

2025110312_GFS_066_41.88,-72.40_winter_mu.png

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6 minutes ago, weatherwiz said:

Well 12z GFS did not really back down. But as a reference for what is being discussed, here is a point-and-click sounding from within northeast Connecticut. That is a very well mixed lowest 1km (nearly dry adiabatic) with 50+ knot winds at 850mb. Very dry below the 850mb level too which would further enhance downward momentum. 

2025110312_GFS_066_41.88,-72.40_winter_mu.png

It won’t back down.  No it won’t… back down 

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