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Help us Obi-One-Marchobi... You're our only hope 3/1 Fantasy


HoarfrostHubb

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Euro was light on qpf with the snow event the other day and we know how that turned out. No reason to worry or have low expectations for this at all. Start high and lower if you have to..Look big picture and globally..not small and here and now

LOL at the Weenies having high expectations on this one 4 days out.

Good luck with that.

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Everyone was calling for rain 18 hours out so what's your point?

this is part of Phil's thread on the main page and reason the excitement level and confidence level is higher for someone in our viewing area to have a decent long duration snowfall this week.

The culprit is a large area of deformation that develops out in front of our synoptic low pressure system. The ECMWF shows this very well at 850 hPa on 12z Wednesday leading the precpitation moving into the northeast. The GFS also supports this general setup, with the Great Lakes region into the Northeast being located in both the right-entrance and left-exit region of two 70+ m/s jet streaks. Thus, its not surprising to see that the intial batch of precipitation moving into the area could be rather intense.

What is more suprising though is that despite strong warm air advection occuring at this time period, the 850 hPa temperatures hardly budge above 0C across the majority of New York State and locations eastward. This is where the damming high really starts to become entrenched. Starting Wednesday afternoon and stretching into Friday, this high will literally not budge and inch as it remains firmly locked in place due to the amplification of a low pressure system off into the Atlantic maritimes. In fact, below zero 850 hPa temperatures will start backbuilding westward as the 850 hPa low pressure over the Great Lakes starts to fall apart in the face of strong confluence. It is only towards the end of the forecast that we see some evidence of a coastal feature show up, but I'd rather keep the details sparce on this system at this time since it is unknown if there will enough energy at 500 hPa to support cyclogenesis offshore that might ramp up precipitation totals from New York City, NY to Boston, MA. Those details should become clearer as we move into the work week in the next couple of days. One thing looks increasingly likely though. This will likely be a long duration event, with several impules that will ride along the boundary established between the strong damming high pressure over Canada and the weakening cyclone to the west.

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GGEM is kinda meh to me. Looks like prolonged -SN with an occasional SN burst with a rapidly weakening upper level system. It's early March too so I do agree with Kev that sun angle to some degree starts becoming a concern in the lower els during the daytime with marginal temps and relatively light/scattered precip.

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this is part of Phil's thread on the main page and reason the excitement level and confidence level is higher for someone in our viewing area to have a decent long duration snowfall this week.

The culprit is a large area of deformation that develops out in front of our synoptic low pressure system. The ECMWF shows this very well at 850 hPa on 12z Wednesday leading the precpitation moving into the northeast. The GFS also supports this general setup, with the Great Lakes region into the Northeast being located in both the right-entrance and left-exit region of two 70+ m/s jet streaks. Thus, its not surprising to see that the intial batch of precipitation moving into the area could be rather intense.

What is more suprising though is that despite strong warm air advection occuring at this time period, the 850 hPa temperatures hardly budge above 0C across the majority of New York State and locations eastward. This is where the damming high really starts to become entrenched. Starting Wednesday afternoon and stretching into Friday, this high will literally not budge and inch as it remains firmly locked in place due to the amplification of a low pressure system off into the Atlantic maritimes. In fact, below zero 850 hPa temperatures will start backbuilding westward as the 850 hPa low pressure over the Great Lakes starts to fall apart in the face of strong confluence. It is only towards the end of the forecast that we see some evidence of a coastal feature show up, but I'd rather keep the details sparce on this system at this time since it is unknown if there will enough energy at 500 hPa to support cyclogenesis offshore that might ramp up precipitation totals from New York City, NY to Boston, MA. Those details should become clearer as we move into the work week in the next couple of days. One thing looks increasingly likely though. This will likely be a long duration event, with several impules that will ride along the boundary established between the strong damming high pressure over Canada and the weakening cyclone to the west.

Thanks jynx ... I'm not even concerned about snow totals right now.. I'm more convened about weather (nyuk nyuk) my flight to Myrtle beach will leave on time or not.

530 am flight out of Logan, Thursday morning. I don't want any damn snow to ruin it.

Seriously though.. how much snow would it take to cancel flights? I'm not that famaliar with Logan.

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GGEM is kinda meh to me. Looks like prolonged -SN with an occasional SN burst with a rapidly weakening upper level system. It's early March too so I do agree with Kev that sun angle to some degree starts becoming a concern in the lower els during the daytime with marginal temps and relatively light/scattered precip.

GGEM does had a decent period of qpf between 00z and 06z. Most of the GEM precip falls at night anyway.

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New write-up from BOX is low confidence but they said they favor advisory snow on Wednesday as the gfs is still coming in line with the EURO/GGEM. They said the potential is there for more (or less if it becomes to strung out and light).

At this point I'm just about positive it will snow here Wed-Thu. It's just a matter of is it a light 1-2" on the grass because it was strung out/ snowing lightly during the day....or will it be a thump with major impact 6+ like the nam tried to do at 12z.

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