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Down to the wire and models are saying wtf? 12/19-20 event


weathafella

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Just back in from shoveling. Those new fallen crystals glistening in the streetlight....a beautifully changed landscape. The plows are out. My criteria for snow is it has to cover the tops of the grass. AS this goes, this event passes with flying colors. Long live winter!

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He is already saying to raise the QPF in SE NY for the Xmas system.

Pie on the face is something anyone needs to experience. I have experienced it many times. I have always said many times...but you have to admit your busts or you will never get better. I've always found those who do not admit busts and rationalize themselves are doomed to become basically "weenies/bad forecasters"...and that is not a good place to be.

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Pie on the face is something anyone needs to experience. I have experienced it many times. I have always said many times...but you have to admit your busts or you will never get better. I've always found those who do not admit busts and rationalize themselves are doomed to become basically "weenies/bad forecasters"...and that is not a good place to be.

100% agree. In synoptic class we used to have to keep a journal of our forecasts and then write a postmortem for what went wrong. If you don't admit your busts and where you failed you don't learn. The models are far from perfect and there's always going to be busts. Confidence is fine and I love hearing differing opinions that are backed up with scientific reasoning, but I hate any forecast that says "this is definitely going to be what happens" and then have it continually stuffed down our throats.

/rant

p.s...I like you zuck, but you deserved a little grilling there. :P

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Pie on the face is something anyone needs to experience. I have experienced it many times. I have always said many times...but you have to admit your busts or you will never get better. I've always found those who do not admit busts and rationalize themselves are doomed to become basically "weenies/bad forecasters"...and that is not a good place to be.

Agree strongly.. you have to make a very conscious effort to keep it honest and grade oneself or you will never learn. It is so easy to lie to oneself and gloss over the failures and exaggerate the successes (this applies to anything in life really). Personally I was pretty convinced this storm was going to be closer to the coast, especially once the models all converged at 72-84hrs out, I figured the chance it would be a complete whiff for me was like 1 in 10 or less. Probably too aggressive in retrospect, although I still think it is surprising it shifted so far east with that kind of model agreement.

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100% agree. In synoptic class we used to have to keep a journal of our forecasts and then write a postmortem for what went wrong. If you don't admit your busts and where you failed you don't learn. The models are far from perfect and there's always going to be busts. Confidence is fine and I love hearing differing opinions that are backed up with scientific reasoning, but I hate any forecast that says "this is definitely going to be what happens" and then have it continually stuffed down our throats.

/rant

p.s...I like you zuck, but you deserved a little grilling there. :P

I like him too, but he deserved a lot of grilling for his "exact forecasts"..esp for the Cape...he completely ignored my sounding post that said if 980mb was the WBZ, it would be snow on the Cape despite the model sfc temps of 40F. It was obvious the Cape had a chance...though I totally screwed the pooch too on how much they would get. But I knew they had a shot. You don't look at model sfc temps that far out...you look at soundings. It screamed 33F wet snow for the Cape for awhile before they flipped 340 wind where they went 29F and heavy snow.

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He is already saying to raise the QPF in SE NY for the Xmas system.

I mean there are reasons you wouldn't get huge QPF here....not a STJ storm and the westerly flow behind the other Atlantic low. HM explained in way better detail. But I still think a 970mb low passing from NJ to LI is going to put down more than .75-1" here, that is really a joke.

Pie on the face is something anyone needs to experience. I have experienced it many times. I have always said many times...but you have to admit your busts or you will never get better. I've always found those who do not admit busts and rationalize themselves are doomed to become basically "weenies/bad forecasters"...and that is not a good place to be.

Oh yeah, I totally busted on the Cape where I thought the warm temperatures and NE winds would make it hard to get a big snowstorm, but I'm really glad I played this storm conservatively overall. This basically turned into a non-event outside of a tiny area although just by a scrape...there was sort of a hint for a while the ridge axis would be offshore though and the PV phase early always seemed like a fragile connection. I'm always happy when I beat the ECM 3-4 days out anyway even if I don't understand MVY climo very well. I definitely hand it to you and Dendrite for knowing the ins and outs of how the area does, though, bad call on my part to go so conservative for SE MA.

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snow backing in again.....heaviest again should be cape and islands.

everything is snow covered here in framingham beautiful site.

beautiful non event that only got a fraction of the area.....zuck is better than the ecwmf :axe:

I don't see the snow really backing in on radar, it looks as if it will be mostly limited to some lighter accumulations on the Cape. There is a good band near Maine but it looks like some subsidence is really preventing it from moving southwest.

On the overall track, I went with this being mostly an offshore storm/grazer...that's what it was for the most part although a few people on the Cape got legitimate totals and some light snow extended up to BOS and suburbs. Definitely a much more realistic track prediction than the SNE HECS and I-95 HECS the ECM showed on the 0z/12z sequence.

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This storm was awesome. I am taking my humble pie, I didn't even issue a formal snowfall map because I thought it was going to be less of an event, wow was I wrong. Christmas weekend storm, it is better to go high then low with this storm. It has so much potential given the PNA ridging the models are seeing and highly amplified North American flow.

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I mean there are reasons you wouldn't get huge QPF here....not a STJ storm and the westerly flow behind the other Atlantic low. HM explained in way better detail. But I still think a 970mb low passing from NJ to LI is going to put down more than .75-1" here, that is really a joke.

Oh yeah, I totally busted on the Cape where I thought the warm temperatures and NE winds would make it hard to get a big snowstorm, but I'm really glad I played this storm conservatively overall. This basically turned into a non-event outside of a tiny area although just by a scrape...there was sort of a hint for a while the ridge axis would be offshore though and the PV phase early always seemed like a fragile connection. I'm always happy when I beat the ECM 3-4 days out anyway even if I don't understand MVY climo very well. I definitely hand it to you and Dendrite for knowing the ins and outs of how the area does, though, bad call on my part to go so conservative for SE MA.

lol, Zuckertubesocks, like a ripped Superhero,leaps out from behind a dusty stack of 'Boy's Life' magazines and subdues the Evil Euro with a pair of extra high, double striped knee highs. "Take that you evil model, your high verification scores are no match for me. I am Zuckertubesocks, To the benchmark and Beyond......"

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