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12/30 Coastal - Snowing Our Way Into NYE


Clinch Leatherwood

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Bad analog. That airmass was way colder in 2003. Not to mention other features that differ.

I didn't take a closer look at the other variables. Top Analogs - Scores: Columns in the table are sortable by header. For more information about a specific event, click on the date.

A perfect field score is 1.0. The final score weighs 850HGHT three times and 850TMP, 925MIXR two times for a maximum final score of 15.0

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there was plenty of qpf. but honestly, it's horrendous. the soundings as far NW as like brockton are bad.

Baby Bryce is making nicer looking poo than what the GFS just did SE of 95.

I won't be here so it's going to snow rest assured...but even last nights RGEM/NAM hinted to me that there would be some warm layers. The only thing that encourages me is what I witnessed the other night Phil. With a raging east wind we had a mix from the coast to Rte 123 at 36 to 33 degrees. The precip shield was weak for the most part.

If this has a legit comma head I think most of the coast flips over no problem. We'll see. Hey kudos to the NAM maybe. This is 5 runs in a row that has amped up and it appears other guidance is following.

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Whoever has already done this analysis and posted their findings I agree with them -

The NAM's last 4 cycles have reprinted the low approximately 30 nautical miles WNW in point by point analysis, when the sfc vortex makes closest approach - about 39 hours from now on the 12z run. Right now, the 12z run brings heavy snow and escalating winds to the Cape and Islands (BL conditions/oceanic notwithstanding); another 30 nm tick and the NAM would have warning snow as far inland as TAN, and perhaps even OWD. As is an Advisory for snow would be needed for those SE zones, and a warning for the Cape and Islands should the 12z pan out verbatim. ...I don't think it will. The trend is so steady, and I am noticing that it is not just the sfc vortex that is edging closer to the SE coast per run; the track of the 500mb sfc is also being edge slightly west across many cycles. I am not sure I see a reason why another 30 mi tick can't happen.

I don't use the RPM model; I am not sure what it's bias' are, but it seems to me just from frequenting this blogosphere that it sucks. I have read many posts before many events, weather of winter or summer complexion, where some one pulled an RPM run out and it indicates a Mayan omen. What ends up happening has always been far less dramatic. That said, this NAM model brings a 1.25 to 1.5" melted equiv blossoming comma head output partially over ACK as it is; if something wild were to happen, and this thing came another 70mi W at the last minutes, well there's your foot.

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