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NYC/PHL Potential Jan 11-14 Event Discussion Part Two


NickD2011

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Here's what seems to be a better description of the QPF field on the 12Z EC:

0.50" line runs from ILG to BGM. More east, less west.

0.75" line runs from WWD to FWN. More east, less west.

1.00" line runs from MJX to POU. More east, less west.

1.25" line is near FRG. More east, less west.

1.50" line is near ISP. More east, less west.

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Euro ensembles are good...similar to the OP. Track is inside the BM at 72. Compared to last nights 00z Ensembles they are further southwest with the coastal development..and hence have more QPF over the region as the CCB develops faster. Total QPF would probably be similar to the OP.

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lol....so me saying PHIL to NYC corridor 6-10" should be backed off? one of us is gonna bust .. ;)

Looking at the latest Data and Trends I think 3-6 will BUST LOW.. 6-10 might be a better call but if I was a Forecaster would not be making ANY final calls till at least this time tomorrow as we Know things can change in a hurry.

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I was just looking at the Nam 12z run just wondering if the ratios could get that high. Seems like from what I'm reading amounts would be a lot lower. Almost 3 inches in a hour between 0600 and 0700.

BUFKIT is just a tool to display model output in soundings and text data. So BUFKIT will display NAM, GFS, etc data for whatever station you choose..like KEWR for example.

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Euro ensembles are good...similar to the OP. Track is inside the BM at 72. Compared to last nights 00z Ensembles they are further southwest with the coastal development..and hence have more QPF over the region as the CCB develops faster. Total QPF would probably be similar to the OP.

Interestingly, there are about 7-10 members that are way right and the rest line up with op almost perfectly or just a hair west.

EDIT: And the ones that are west are pretty deep. That's why you see the mean line up almost perfectly.

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Thanks for this data - makes for an easily visualized (and estimated) dump.

Ray, or anyone, is this particular QPF field considered to be a tight gradient for a storm of this nature? What kind of changes, if any, do these QPF fields have a history of undergoing in the final 48hrs.?

Here's what seems to be a better description of the QPF field on the 12Z EC:

0.50" line runs from ILG to BGM. More east, less west.

0.75" line runs from WWD to FWN. More east, less west.

1.00" line runs from MJX to POU. More east, less west.

1.25" line is near FRG. More east, less west.

1.50" line is near ISP. More east, less west.

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