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December 19-20 Talking Points - Part 3


earthlight

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Not even referencing that I was trying to get a serious answer in regards to the dual low scenario?

However...on the means in the members at 60 hrs ...not one member has the double low scenario.

I be willing to bet that neither does the ECM means....

Now, according to tornadojay he thought that the presence of this low was causing the flatter look etc and robbing the storm of moisture...So if that 2nd low is not realistically part of the equation which from the means members of the GFS it does not...then would the outcome of the GFS/GGEM/ECM been different then what we are "physically " seeing tonight?

I do not think this is a dumb question and very applicable to what has happened and effects the outcome at the end!

Agree, not a dumb question. Personally I think the possibility of multiple low centers or a stretched out area of low pressure off the SE coast is valid. As for the ensemble means, I know they have less spatial -and probably vertical - resolution than the operational runs. So they are more likely to show a broad area of low pressure instead of two distinct centers. In terms of the implications of what you're asking, I have no idea...

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Im staying up for both the GFS and NAM, but I figure quite a few people would have photoshopped the other four fingers out of that image and just kept the middle finger up ;)

lmaosmiley.gif well im with you in staying up for at-least the nam, and the gfs, but after that im punching the pillow depending on what happens.

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There were two: 12/13/88 and 2/25/1990.

Was one of those the storms that stalled just offshore (formed on a cold front that was supposed to be an innocuous passage?) I remember that one William. My best memory from the late 80s lol. Snowed for 24 hours straight in what was supposed to be just a few snow showers! Temps were borderline during the day, but it really got going at night!

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The model coaster continues, the only consolation I can give myself now and would perhaps encourage others to consider is that all possibilities are still open and I don't think there will be a nail in the coffin until the event is just a day away if not on the day itself. I say this because there has just been too much inconstancy with this thing all around. There are so many players on the stage to make this storm work: two short waves, one in the southern stream, the other in the northern, then the movement of the PV, and all these things have to come together just right, and apparently all of that is just too much for the models to handle.

I don't care either for the notion that the models now have enough sampling data and thus they must now be more correct. There have been many storms that the Euro has honed in on well like it normally does before all of the factors of those storms were sampled over land correctly. With the Euro, it has not always depended on waiting for good sampling before it did well to forecast a storm. This set up is a different beast however, and I still think we can't nail down anything until we see better model consistency, and at the rate we are going, that might not be achievable till the day of the storm itself.

This all sucks, but I'll keep praying for it, and I won't be surprised if we are all back on this thing tomorrow.

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Not even referencing that I was trying to get a serious answer in regards to the dual low scenario?

We see it on the GFS at 60 hrs...

We seen in on the NAM around the same time frame...

We seen it on the GGEM as well & if i was a betting individual i would say the UKMET has it to...

We seen it on the ECM...

However...on the means in the members at 60 hrs ...not one member has the double low scenario.

I be willing to bet that neither does the ECM means....

Now, according to tornadojay he thought that the presence of this low was causing the flatter look etc and robbing the storm of moisture...So if that 2nd low is not realistically part of the equation which from the means members of the GFS it does not...then would the outcome of the GFS/GGEM/ECM been different then what we are "physically " seeing tonight?

It would, however they are there at 48 and 54 and perhaps the low res of the individual members blurs the lows unlike the hi res operational. That being said, theres still several members that consolidate the dbb lows much quicker (see P004) resulting in a more western single bomb MECS and many others hopelessly out to sea with no real amplification. Perhaps tomorrow when the northern stream is better sampled we will see yet an another solution, east or west seems likely as each run is keying on defferent features. We are running out of time but I don't think were done yet.

I do not think this is a dumb question and very applicable to what has happened and effects the outcome at the end!

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