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December Mid-Long Range Discussion


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I know we are way out there but I just want to point out the big diff between 12z/18z. 50/50 isn't there so it glides east. Exactly what was discussed earlier in the thread. Big difference at 500 overall. And this will change a about 30 times in the the coming days.

Here's the side by side @ hrs 174/180:

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GFS is cold post storm all the way through the end of the run. Doesn't look like we get much out of the 30's and xmas day is cold. GFS is pretty dry precip wise but who cares at this point. Just nice to see another run stick with cold surface temps for xmas week. At one point there is a 1050+ hp in central canada. heh

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dude--it looks way to close to the boxing day storm where SE VA got pounded..we got skipped and Boston and NY got clobbered. And that is the #1 analog for storm:(

Yea I looked up the 500mb for that storm it looks very similar across the CONUS.

http://www.meteo.psu.edu/~fxg1/NARR/2010/us1225.php

I think we need a bit more separation between the day 4-5 event and the main one.

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I know we are way out there but I just want to point out the big diff between 12z/18z. 50/50 isn't there so it glides east. Exactly what was discussed earlier in the thread. Big difference at 500 overall. And this will change a about 30 times in the the coming days.

Here's the side by side @ hrs 174/180:

noted this a few times .. think it's a solid reason not to get too excited about any one solution even if this was 4 days out. signal grows.. but for what who knows. seems end result of a sys acting more like a miller b even if forms well south is a decent bet. boxing day did that of course. i sorta think that qpf max to our south is bunk on the gfs.. not that it matters since it won't be there next run.

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I know we are way out there but I just want to point out the big diff between 12z/18z. 50/50 isn't there so it glides east. Exactly what was discussed earlier in the thread. Big difference at 500 overall. And this will change a about 30 times in the the coming days.

Here's the side by side @ hrs 174/180:

I thought that a weakened 50/50 would allow the system to ride up the Apps or cut to the Lakes. Why is it that a weak 50/50 would allow the system to slide off the coast? Isn't that a symptom of an über block, and not of a weakened one?

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I thought that a weakened 50/50 would allow the system to ride up the Apps or cut to the Lakes. Why is it that a weak 50/50 would allow the system to slide off the coast? Isn't that a symptom of an über block, and not of a weakened one?

i think in this case the closed low to the north helps shunt it out.

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