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NittanyWx

Meteorologist
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Everything posted by NittanyWx

  1. I'll toss in another complicating factor, there's been a steady increase in mid level activity/vorts in the Midwest too since the western feature started getting sampled. I agree with you, FWIW on inherent NAM biases at hr 60, part of the reason i'm cautious and suspicious it's a bit overwarmed.
  2. Copying from SNE: Starting to see that warm nose show up between 750-850 which was a risk as noted last week for the coast. That warm nose less of a factor as you get away from the coastal plain, and the wraparound (even with marginal air) band can overcome that in the column further north and west. As discussed, the track certainly matters, but so too does the two vort interaction, closing off of the upper level low among several other factors. 0Z/12Z today have shown there a mix risk honestly as far north as Hartford and extending into SNE with that SE fetch aloft. I think the NAM at this stage is a bit of a warm outlier for now, but not unreasonable risk.
  3. Starting to see that warm nose show up between 750-850 which was a risk as noted last week for the coast. That warm nose less of a factor as you get away from the coastal plain, and the wraparound (even with marginal air) band can overcome that in the column further north and west. As discussed, the track certainly matters, but so too does the two vort interaction, closing off of the upper level low among several other factors. 0Z/12Z today have shown there a mix risk honestly as far north as Hartford and extending into SNE with that SE fetch aloft. I think the NAM at this stage is a bit of a warm outlier for now, but not unreasonable risk.
  4. Fun to see the 3 operational models all have different ideas on how to handle that trailing vort interaction. First bit of sampling out west and that's become an increasingly interesting feature.
  5. I did and I'm hoping to see an idea on the 0zs of how many individual members have this cconcept with the secondary piece. My initial thought is partial sample size off of partial sampling, plausible but maybe not most likely as of today. Cant dismiss outright though. Obviously if this does end up as a rapid developer, the odds of a CCB type band increase significantly. If it strings out you maybe get some fronto enhancement vs full on CCB weenie band.
  6. I know how to read a clown map. I also know how to read a temperature map and a sounding. You don't want this fight. Tl;dr: the 10:1 clown maps are misleading on accumulations in marginal setups like this and not particularly useful along the coastal plain right now.
  7. First datapoint where I'm looking at the western system is with the 0z tonight. Mainly looking for changes inside 48 hr with respect the speed of the vortmax cutting off, depth of it as it digs in California and beyond that beginning to take a bit of a cursory look at the Aleutian low and any potential interaction that has with rising (or falling) heights out west for Saturday. Also looking at jet streak out of the gulf and whether there are any changes on that front as well. As an aside, seeing a lot of comments on 'model shows X snow' and a clown map. I think we can do better than rip and run in this forum. Doesn't take much effort to add 'but temps and dews above/below freezing for location y, so it may be overstated in this area. Look at the soundings, let's do the weather right.
  8. Looking forward to modeling tonight/tomorrow midday as we start getting more robust sampling of this western system. I'd say up to this point odds have been slightly skewed towards more suppression vs cutter based on synoptic pattern, we now should start being able to discern which is the more likely risk with better certainty starting with the 0z tonight and 12z tomorrow. The region is threading a needle between trying to have enough western amplification/east canada 50/50 to get this storm north (but not too much), trying to deepen the low (but not too much) and if you do both, also trying to avoid warm air nose near the 700mb level. Delicate balancing act with several moving pieces. It's going to be hard at the coastal plain (city, LI, coastal NJ) for this to deliver much more than a light/low-end moderate event I feel because of marginal temps (being overnight does help a bit) but whether this is a notable interior event where sfc temps will be colder we should start getting an idea on soon as we start defining track risks with more conviction. You guys know I've been someone who felt this period could work for over two weeks now, but as I said then and will continue to say now, a few things need to go right still and not all of them have done so yet.
  9. Agree here, very useful tool at the d6-10 range.
  10. Feeling that this January so far is setting up as expected. You've got a chance on the 7th, but need a few things to go right to make it happen. Don't like the 10th at all. Do like MLK period/week.
  11. Im warming up to this MLK period and immediately after for snow chances, which is nothing new in my view. Hate the 10th, still think this is doable Jan 7 but still need a few things to go right out west for it to happen and need to avoid 700mb warm intrusion if it ends up a coastal. I feel risk skewed higher for suppression than cut today with the 7th.
  12. Or putting it in overly simplistic terms: A lot more pieces need to change for the 10th to work out for snow lovers than the 7th-8th.
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