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weatherwiz

Meteorologist
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Posts posted by weatherwiz

  1. 3 minutes ago, weathafella said:

    To me, the difference between 10-15 and 15-20 is the Monday snow.  It seems like Sunday and Sunday night, particularly 4pm-midnight are a slam dunk very heavy snow period 

    If that Monday snow verifies I think someone in northeast MA may pull >24" 

    I would not forecast that now but I think there could certainly be some reports. This storm is going to be full of surprises...I can't get over the whole DGZ thing looking around on bufkit lol. I think dendrite mentioned this about the snow ratios and how its difficult to maintain upward of 20:1 - 25:1 but where and when the best lift is occurring...there is going to be a swath verifying those ratios at least for a brief period of time

  2. 1 minute ago, ORH_wxman said:

    The DGZ is essentially from the sfc to 700mb on Monday so anything low level is gonna be quite efficient. The question is just how much lift can we generate in the low levels. Stronger onshore flow will certainly help as you push that marine boundary layer into the arctic dome…that alone will generate decent low level lift. But that’s why getting a decent secondary staying to our south as long as possible is key. Once it reaches our latitude, winds in the BL will be less and less onshore.  

    This is why I can't wait until we get into meso model range. The mesos I think should handle this very well and this is when we can really talk about the potential for >15" totals and where those would be most likely to occur.  

  3. If we're going to be looking at something along the line of 15-20-24" somewhere that idea won't become more serious until we're inside of 24-36 hours and can start diagnosing banding more accurately and getting a solidified feel on snowfall ratios, lift, etc. 

    This is why that map of 1-2' was absolutely stupid this far out. 

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  4. That would be a huge hit on the GFS, especially with the 850 low developing just south of the region. I like how the sfc low and 850 low go virtually west-to-east to our south with a bit of elongation to the low...that should help (I would think) result in a much wider than usual fronto band (combined with other factors of course) than usual. This inflow oof

    image.png.0ccdba0721494d58793731ae1262e41f.png

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  5. It is feasible the immediate shore does experience some mixing. This is where its much better to look at forecast soundings then fixed levels (such as 850 or 700). You can get very sneaky, subtle warm layers. There are also other processes to consider as well, for example, if there is a tremendous amount of latent heat release ongoing that can negatively impact snow growth production and result in poor enough snowgrowth that precip is almost sleet like. I believe something like that happened in 2013?

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  6. 17 minutes ago, 40/70 Benchmark said:

    This is the kind of trend that's been fatal the past several years BC the airmass has always sucked. Different ballgame now IMHO. We have margin for error.

    Given the airmass, the trend could actually be a significant benefit to us, at least on the mesoscale level when it comes time to pinning down banding and what the potential amounts may be

  7. All the details and such can be ironed out as we get closer but there is a ton to be excited and happy about at this time range. There is going to be no shortage of moisture with this and if we can get the final evolution to be very close to what the general consensus is, it's going to be a big hit over a very large area - obviously there will be mesoscale factors at play which result in some getting "screwed" and some "overperforming" but lets keep this signal for a powerhouse of WAA feeding into the airmass that will be in place, and with the thermal profile and temperature gradient (upward) velocities would be great over the entire area

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  8. 3 minutes ago, kazimirkai said:

    Alot of my weather friends from Stony brook and Albany are heading down to AMS this weekend and they're all hoping for ice there to at least see some winter precip out of this huge storm. Pretty tragic situation for them if its all rain

    Went to the AMS in Austin in 2018 and we got stuck in Austin for an extra two days because our flight got cancelled for wintry precip. The whole town of Austin was virtually shut down...not a single car on the road. They legit got like 2 second of sleet haha. Missed the first two days of the spring semester.

  9. 2 minutes ago, ORH_wxman said:

    06z was a better solution. 12z got over its skis a bit and the overrunning is kind of disjointed with that trailing energy more than 06z was. They are kind of separate on both solutions but 12z is moreso. 

    Ahh this makes sense. I hate how products are limited on weathermodels but my initial thinking was whether the 12z Euro was like occluding things a bit quicker the way it was kind of tapering down the QPF towards the end. 

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