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December 14/15 winter storm threat


Typhoon Tip

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How do we end up with mostly rain on the south shore when a strong cold high is in a great place?

Fresh arctic air, high in perfect position feeding low DP air. Historically today is the day models lose original ideas, back off some, posters freak, some Mets meh. Its a broken record, lets see what happens tomorrow and Friday. 

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With the 700mb low tracking well to the northwest of the region and with the southern stream shortwave dampening out before heading into the region, chances are our hopes of a big storm are dwindling with every passing breath.  Although I will hold out until the Friday 00z runs before abandoning ship.  I really thought we would get a blockbuster storm before the pattern would break down. 

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Checking out the 00z's 12, 24, 36 hours and comparing those to the like-intervals of the 12z run, and it appears the 12z initialized the Pacific about 6dm shallower with the southern component of the wave(s), and about half as potent with the northern component v-max.  

 

That probable in my mind as to why the 00z was more coherent than the some of these runs since. 

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Fresh arctic air, high in perfect position feeding low DP air. Historically today is the day models lose original ideas, back off some, posters freak, some Mets meh. Its a broken record, lets see what happens tomorrow and Friday. 

Yea, could be the prototypical day3-4 dampening of the potential.....we'll see, but given the background players this season, I'd favor a more meager system....by meager, I mean under 10"....relatively speaking here.

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With the 700mb low tracking well to the northwest of the region and with the southern stream shortwave dampening out before heading into the region, chances are our hopes of a big storm are dwindling with every passing breath.  Although I will hold out until the Friday 00z runs before abandoning ship.  I really thought we would get a blockbuster storm before the pattern would break down. 

Nickel and dime pattern...which I will gladly take since it is only December 11 and about to be snowy and cold

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They said up to a foot of snow west of the coastal front...seems early for that kinda talk...but I like it lol

 

My read on that was near but on the cold side of the front--not 100 miles from it.  I think we'll be holding out our hopes for good ratios for reasonable accumulations out this way and up by you.

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I find it very difficult to see how a cstl front gets to 495. Not with this deal.

 

I think that's a NW-most stopping point. The discussion indicates the author is NOT totally sold on transition/low level cold being scoured out completely. 95 might ended up being the spot instead.

 

More and more to me it looks like by the time that intrusion of warmer air gets in on the eastern CP, a good bit of precip has already gotten down.

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My read on that was near but on the cold side of the front--not 100 miles from it.  I think we'll be holding out our hopes for good ratios for reasonable accumulations out this way and up by you.

your backyard is 100 miles from it lol...not mine.  I could be OK if the CF made it to 495...

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With the 700mb low tracking well to the northwest of the region and with the southern stream shortwave dampening out before heading into the region, chances are our hopes of a big storm are dwindling with every passing breath.  Although I will hold out until the Friday 00z runs before abandoning ship.  I really thought we would get a blockbuster storm before the pattern would break down. 

 

I think the blockbuster ship set sail after the 00z run.  Still many hours of enjoyable flakes.

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I've never seen anything like it..Everyone is so amped up and excited about a long duration 5-10 inch snow event and one poster who has a cold and in a bad mood, comes in and just downs everything

He said it could end up a 1-3" deal then ice or rain.  And he's right.  Guidance shows generally light QPF with modest upper level support... and it could trend even worse.  On top of that, it's possible temps become marginal at some point as well.  You sem to live more for the emotional high that comes with hyping a storm than for the actual storm itself.  Some other people enjoy the challenge of trying to pin things down and get a forecast as accurate as possible.  We can coexist.  Skepticism and caution do not necessarily ruin anticipation and excitement.  I could see 1-2" or 6-10".  Inter and intra model agreement lends some confidence to a plowable snowfall, but it's still too early to expect it I think.

 

I still haven't had much more than 1" in ALB, so I'm setting 2" as my hopeful threshold. 

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Fresh arctic air, high in perfect position feeding low DP air. Historically today is the day models lose original ideas, back off some, posters freak, some Mets meh. Its a broken record, lets see what happens tomorrow and Friday.

My thought as well. The past several years have shown that if you have the ingredients in the mix to not completely write it off. However, the red taggers have a job to do, so I understand the conservative approach. I don't think anyone is canceling the storm, but they're not going to hype something that's not there (yet). That would be irresponsible for them to do with professional consequences that most of us don't bear. If this doesn't look better by the 13/00z (gives us 3 more runs) run then it's reasonable to throw in the towel.

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