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Feb 8th-9th Do We Finally Get A Coastal?


dryslot

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i think people need to NOT let Blizz effect there expecations. 1 foot plus  is a ridiculous level to start IMO. Esp W SNE.  This low has a 50/50 shot of being weaker/ east according to the HPC or NCEP disco and i think people would be wise to start with 3-6 and then adjust from there IF IF euro and euro ens can print out 1.00 QPF for next couple cycles, i think this may trickle east/SE (or at least that is the concern) and most are left with advisory or moderate storm.

 

 

I don't think most appreciate how delicate this setup is. This is not a setup with a large margin for error like Jan 12, 2011 was with a huge block basically forcing the storm into a relatively stable track.

 

There is a narrow window where this storm can produce big time, but given it is 3 days out, plenty easy to miss on that window. The miss solutions are still producing pretty solid qpf based on a variety of favorable parameters, so I think there is solid evidence for a plowable event. But everyone needs to temper expectations until there is further evidence that such an outcome is favored.

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I don't think most appreciate how delicate this setup is. This is not a setup with a large margin for error like Jan 12, 2011 was with a huge block basically forcing the storm into a relatively stable track.

There is a narrow window where this storm can produce big time, but given it is 3 days out, plenty easy to miss on that window. The miss solutions are still producing pretty solid qpf based on a variety of favorable parameters, so I think there is solid evidence for a plowable event. But everyone needs to temper expectations until there is further evidence that such an outcome is favored.

Keep fighting the good fight haha.

It just seems people aren't sensing how good these "bad" runs are. 0.5"+ of QPF is a big deal this winter lol

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I certainly agree with this post. Now that the models are coming into agreement about the likely southern stream interaction, its really a case of how strong will the 500 hPa low near Greenland be when the phasing occurs. There isn't much room for this system to move northward with a strong 500 hPa low in place. 

would this effect the timing of the phase or more just the track post phase.

 

i was also looking to bring up the quote another poster (pro met) had with 250 anomalies that suggest a high QPF event as well as a slowing of the storm ) does anyone have a clue what i'm talking about , i remember wx4cast use to post those 250 mb anomalies with regard to getting a hint of a slowing /stalling storm and perhaps high qpf event as well.  I think this is key for a biggie assuming we can get a phase/track over bench mark.

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I don't think most appreciate how delicate this setup is. This is not a setup with a large margin for error like Jan 12, 2011 was with a huge block basically forcing the storm into a relatively stable track.

 

There is a narrow window where this storm can produce big time, but given it is 3 days out, plenty easy to miss on that window. The miss solutions are still producing pretty solid qpf based on a variety of favorable parameters, so I think there is solid evidence for a plowable event. But everyone needs to temper expectations until there is further evidence that such an outcome is favored.

 

 

Well said.  It's a nice threat even if the coastal misses. 

 

It's snowing for the 2nd time in 3 days and there's a nice event coming end of the week.  Nice.

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850WIND-16.gif

 

Nice cold conveyor signal from the 12z GEFS, PWAT anomalies are just above 1 SD too.

 

250WIND-17.gif

 

Starting to get that heavy QPF signal at 250 mb too. Seeing negative u wind anomalies aloft is typically a good sign for a slow down in forward speed. Would rather see those be true easterly winds aloft for a real stall, but this will do.

this is the post i was mentioning above from oceanstwx. very interesting to see those 250 mb anomalies to get a biggie, but also i was curious if THESE factors linked contribute to why it would still be a high qpf event even with the coastal going significantly (within reason) ESE or E of bench mark 

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would this effect the timing of the phase or more just the track post phase.

 

i was also looking to bring up the quote another poster (pro met) had with 250 anomalies that suggest a high QPF event as well as a slowing of the storm ) does anyone have a clue what i'm talking about , i remember wx4cast use to post those 250 mb anomalies with regard to getting a hint of a slowing /stalling storm and perhaps high qpf event as well.  I think this is key for a biggie assuming we can get a phase/track over bench mark.

 

 

The key is the u (east-west) wind anomalies at 250 mb. Flow at this level is typically due west to east. If the winds actually reverse at that level and come out of the east, this suggests a closed system at all levels and very slow movement (i.e. high QPF). In this case winds aren't from the east at 250 mb, but the 12z GEFS suggests highly anomalous southerly flow, which would be slower than typical movement. So that lends some support to the high QPF op runs we've seen, like the 12z GFS.

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TWC is posting a graphic showing the euro with 24+ over E MA every 15 minutes, I'm not sure they realize the general public often buys into this more than they should.

 

I think that's exactly why they're doing it, more eyeballs on the TV.

 

Then if this slides out to sea, they'll throw up an episode of Storm Stories and not have to explain what went wrong.

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TWC is posting a graphic showing the euro with 24+ over E MA every 15 minutes, I'm not sure they realize the general public often buys into this more than they should.

That's what causes problems. General public sees an early map, assumes that's it verbatim and tunes out, and gets pissed when things don't happen that way.

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TWC is posting a graphic showing the euro with 24+ over E MA every 15 minutes, I'm not sure they realize the general public often buys into this more than they should.

 

Wait... People still watch the Weather Channel?

 

It doesn't seem that long ago when that was all most of us had to go on.  Ha.

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Keep fighting the good fight haha.

It just seems people aren't sensing how good these "bad" runs are. 0.5"+ of QPF is a big deal this winter lol

Exactly.5 is 10 times better than whats happen over the last four systems, literally, I think this will tick SE a bit, but i dont think it is as progressive as the pattern has been. I would say 4-6 and be happy

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