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Wednesday NY State Screamer 12/11.


CoastalWx
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GFS Bufkit is wild at BOS and PYM. Sometimes GFS can overdue mixing, but holy crap those winds at 925. 

I think the key is to keep the showery stuff west because rain will hep stabilize the atmosphere. Sometimes the squall line can force a strong gust or two...but many times the best winds are preceded ahead of the line.

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1 minute ago, CoastalWx said:

GFS Bufkit is wild at BOS and PYM. Sometimes GFS can overdue mixing, but holy crap those winds at 925. 

I think the key is to keep the showery stuff west because rain will hep stabilize the atmosphere. Sometimes the squall line can force a strong gust or two...but many times the best winds are preceded ahead of the line.

Just checked 6z GFS for bufkit at BOS...that is pretty wild at 9:00 PM Wednesday night. Though if you toggle the Momentum Xfer from 10 to 1 you can see that it is probably a bit overmixed. My early thoughts with this is we'll see some decent sustained winds across the region but if you're going to want gusts above 50 mph you're going to need the assistance of convection. Without convection the gusts may be difficult to come by (and for what you said...showery stuff stabilizing things). 

And good note about the wind with lines in these setups...important to understand the strongest winds occur just out ahead of the line and just prior to the arrival of the heavy rains

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Just now, weatherwiz said:

Just checked 6z GFS for bufkit at BOS...that is pretty wild at 9:00 PM Wednesday night. Though if you toggle the Momentum Xfer from 10 to 1 you can see that it is probably a bit overmixed. My early thoughts with this is we'll see some decent sustained winds across the region but if you're going to want gusts above 50 mph you're going to need the assistance of convection. Without convection the gusts may be difficult to come by (and for what you said...showery stuff stabilizing things). 

And good note about the wind with lines in these setups...important to understand the strongest winds occur just out ahead of the line and just prior to the arrival of the heavy rains

Even at 1 mixes to 57kts or so. Didn't even to 10 lol.

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Just now, CoastalWx said:

Even at 1 mixes to 57kts or so. Didn't even to 10 lol.

Holy shit you're right...I see that at 7:00. That would probably be just before the main line would be approaching BOS too. Just checked the 3km and it has a pretty solid line. You may actually see the line strengthen as it moves west-to-east across the region with the enhanced upper support. 

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7 minutes ago, CoastalWx said:

GFS Bufkit is wild at BOS and PYM. Sometimes GFS can overdue mixing, but holy crap those winds at 925. 

I think the key is to keep the showery stuff west because rain will hep stabilize the atmosphere. Sometimes the squall line can force a strong gust or two...but many times the best winds are preceded ahead of the line.

Shouldn’t elevations also rip ?

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Some interesting differences on the NAM versus GFS and one of the noteworthy differences is temperatures. At 0z Thursday the NAM is mid-to-upper 50's while the GFS is upper 50's to lower 60's. This may not seem like much but that delta could be a big difference in what is realized in wind potential. I would side with the GFS on this and if you put those temps with the NAM's evolution that is a major wind event for most. 

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There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

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Just now, ORH_wxman said:

There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

Yeah we shouldn't overlook that aspect of this whole thing. Could get quite icy in ORH county and even interior NE MA.

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2 minutes ago, ORH_wxman said:

There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

God we hope and pray. Basically on the anniversary of the bigun 16 years ago.

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4 minutes ago, ORH_wxman said:

There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

I find it interesting that the HRRR/3km NAM appear to be the "warmest" of guidance. 12km NAM is pretty cold though and the GFS is similar to the 12k NAM...I find this pretty telling...sometimes the GFS struggles with the cold tucks so for it to be hitting on it is pretty big IMO.

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11 minutes ago, ORH_wxman said:

There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

Is that in addition to tonight? (Winter Weather Advisory for 3PM today-10AM tomorrow)

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14 minutes ago, ORH_wxman said:

There could be a big problem with FZDZ over much of the interior (esp pike northward) tomorrow and into tomorrow evening. Big cold tuck showing up on guidance. The question is how far below freezing it drops. There’s a decent difference between 31.5F and 29F 

I honeslty don't want it, but my area is at risk for it.

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3 minutes ago, HoarfrostHubb said:

Is that in addition to tonight? (Winter Weather Advisory for 3PM today-10AM tomorrow)

Correct. Tonight is mainly north of rt 2. But as the mesolow passes by us overnight, it is going to tuck the sfc cold back south into MA. I think anyone from NE MA outside of 128 into central MA needs to pay attention. Could get quite icy…assuming we drop temps into that 30-31F range and not 32-33F. Some of the guidance has upper 20s in NE MA and in that Rt 3 corridor near ASH to Billerica. 

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